Jinan USR IOT Technology WIFI232D2A Embedded WiFi Module User Manual GPON SFU System Design

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USR-WIFI232-

USR-WIFI232- D2

D2

Embedded

Embedded WiFi

WiFi

WiFi Module

Module

Module User

User

User Manual

Manual

Version ：V1.0.0

Remarks:

Remarks: This module is applicable to USR-WIFI232- D2 . For Other modules please refer to the

corresponding document.

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Table

Table Of

Of

Of Contents

Contents

1 Quick Start .......................................................................................................................................... 6

1.1 Hardware connect ................................................................................................................... 6

1.2 Network connection ................................................................................................................. 6

1.3 C ommunication test ................................................................................................................. 7

2 Product Overview ............................................................................................................................... 8

2.1 General Description ................................................................................................................. 8

1 Quick Start .......................................................................................................................................... 6

1.1 Hardware connect ................................................................................................................... 6

1.2 Network connection ................................................................................................................. 6

1.3 Communication test ................................................................................................................. 7

2 Product Overview ............................................................................................................................... 8

2.1 General Description ................................................................................................................. 8

2.2 Device Features ...................................................................................................................... 9

2.3 Device Paremeters ................................................................................................................ 10

2.4 Key Application ...................................................................................................................... 10

2.5 Package Information .............................................................................................................

11

2.5.1 Recommended Reflow Profile ....................................................................................

11

2.5.2 Device Handling Instruction (Module IC SMT Preparation) ......................................

11

2.5.3 Shipping Information ...................................................................................................

11

3 Hardware Introduction ..................................................................................................................... 12

3.1 Pins Definition ........................................................................................................................ 12

3.1.1 USR-WIFI232-D2 Pins Definition ............................................................................... 12

3.1.2 USR-WIFI232-D2 Size ............................................................................................... 14

3.2 Antenna .................................................................................................................................. 14

3.2.1 On-board Chip Antenna .............................................................................................. 14

3.2.2 External Antenna ........................................................................................................ 15

3.3 Evaluation Kit ......................................................................................................................... 16

3.4 Hardware Reference Design ................................................................................................ 17

3.4.1 Hardware Typical Application ..................................................................................... 17

3.4.2 10/100M Ethernet Interface ....................................................................................... 18

3.4.3 UART Interface ........................................................................................................... 18

3.4.4 Power Interface ........................................................................................................... 19

4 Modules Function Description ......................................................................................................... 19

4.1 User configuration process ................................................................................................... 19

4.2 Working mode ....................................................................................................................... 20

4.2.1 Transparent Transmission Mode ............................................................................... 20

4.2.2 Serial command mode ............................................................................................... 20

4.2.3 GPIO mode ................................................................................................................. 22

4.2.4 HTTPD Client mode ................................................................................................... 22

4.3 Wireless Networking ............................................................................................................. 23

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4.3.1 STA .............................................................................................................................. 23

4.3.2 AP ................................................................................................................................ 24

4.3.3 AP+STA ....................................................................................................................... 24

4.4 Ethernet Interface Communication ....................................................................................... 26

4.4.1 USR-WIFI232-D2 Ethernet Interface Networking (As AP) ....................................... 26

4.4.2 USR-WIFI232-D2 Ethernet Interface Networking (As STA, N-Ver) ......................... 26

4.4.3 USR-WIFI232-D2 Ethernet Interface Networking (As STA, Z-Ver) .......................... 27

4.5 WI-FI parameter setting ........................................................................................................ 27

4.5.1 Auto- Frequency Function .......................................................................................... 27

4.5.2 Security ....................................................................................................................... 27

4.5.3 Search Function for STA ............................................................................................ 28

4.5.4 Address Binding .......................................................................................................... 28

4.6 UART Frame Scheme ........................................................................................................... 28

4.6.1 UART Free-Frame ...................................................................................................... 28

4.6.2 UART Auto-Frame ...................................................................................................... 29

4.7 Network Setting ..................................................................................................................... 29

4.7.1 Socket A ...................................................................................................................... 29

4.7.2 Socket B ...................................................................................................................... 30

4.8 New function .......................................................................................................................... 30

4.8.1 TCP password authentication .................................................................................... 30

4.8.2 Upload ID .................................................................................................................... 30

4.8.3 Self-adaption Baudrate ............................................................................................... 30

4.8.4 WEB IO ....................................................................................................................... 31

4.8.5 Keepalive .................................................................................................................... 31

4.8.6 Multiple

STA

parameters ............................................................................................ 31

4.8.7 Websocket .................................................................................................................. 31

4.9 Palmodic Signal ..................................................................................................................... 32

4.10 Parameters Configuration ................................................................................................... 32

4.11 Firmware Upgrade ............................................................................................................... 33

5 Web Accessing and AT+instruction set ........................................................................................... 34

5.1 Configuration via Web Accessing ......................................................................................... 34

5.1.1 Open Web Management Interface ............................................................................. 34

5.1.2 Quick Configure .......................................................................................................... 35

5.1.3 Mode Selection Page ................................................................................................. 35

5.1.4 AP Interface Setting Page .......................................................................................... 36

5.1.5

STA

Interface Setting Page ........................................................................................ 36

5.1.6 Application Setting Page ............................................................................................ 37

5.1.7 Ethernet Setting .......................................................................................................... 38

5.1.8 HTTPD Client Mode ................................................................................................... 39

5.1.9 WEB IO ....................................................................................................................... 39

5.1.10 Device Management Page ....................................................................................... 40

5.2 AT+instruction Introduction ................................................................................................... 41

5.2.1 Configuration Mode .................................................................................................... 41

5.2.1.1 Switch to Configuration Mode ......................................................................... 41

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5.2.2 AT+ Instruction Set Overview ..................................................................................... 42

5.2.2.1 Instruction Syntax Format ................................................................................ 43

5.2.2.2 AT+ Instruction Set ........................................................................................... 44

5.2.2.2.1 AT+E ....................................................................................................... 46

5.2.2.2.2 AT+ENTM ............................................................................................... 46

5.2.2.2.3 AT+NETP ............................................................................................... 46

5.2.2.2.4 AT+UART ............................................................................................... 46

5.2.2.2.5 AT+ UARTF ............................................................................................ 47

5.2.2.2.6 AT+ UARTFT ......................................................................................... 47

5.2.2.2.7 AT+ UARTFL .......................................................................................... 48

5.2.2.2.8 AT+TMODE ............................................................................................ 48

5.2.2.2.9 AT+WMODE .......................................................................................... 48

5.2.2.2.10 AT+WSKEY .......................................................................................... 48

5.2.2.2.11 AT+WSSSID ......................................................................................... 49

5.2.2.2.12 AT+ WSLK ........................................................................................... 49

5.2.2.2.13 AT+WEBU ............................................................................................ 50

5.2.2.2.14 AT+WAP ............................................................................................... 50

5.2.2.2.15 AT+WAKEY .......................................................................................... 50

5.2.2.2.16 AT+HIDESSID ..................................................................................... 51

5.2.2.2.17 AT+MSLP ............................................................................................. 51

5.2.2.2.18 AT+WSCAN ......................................................................................... 52

5.2.2.2.19 AT+ TCPLK .......................................................................................... 52

5.2.2.2.20

AT

+ TCPDIS ....................................................................................... 52

5.2.2.2.21 AT+ WANN ........................................................................................... 52

5.2.2.2.22 AT+ LANN ............................................................................................ 53

5.2.2.2.23 AT+DHCPDEN ..................................................................................... 53

5.2.2.2.24 AT+ DHCPGW ..................................................................................... 54

5.2.2.2.25 AT+ TCPTO ......................................................................................... 54

5.2.2.2.26 AT+ MAXSK ......................................................................................... 54

5.2.2.2.27 AT+TCPB ............................................................................................. 54

5.2.2.2.28 AT+TCPPTB ........................................................................................ 55

5.2.2.2.29 AT+TCPADDB ..................................................................................... 55

5.2.2.2.30 AT+TCPTOB ........................................................................................ 55

5.2.2.2.31 AT+TCPLKB ......................................................................................... 56

5.2.2.2.32 AT+STTC ............................................................................................. 56

5.2.2.2.33 AT+DOMAIN ........................................................................................ 56

5.2.2.2.34 AT+FRLDEN ........................................................................................ 56

5.2.2.2.35 AT+FUDLX ........................................................................................... 57

5.2.2.2.36 AT+MMID ............................................................................................. 57

5.2.2.2.37 AT+IDFIR ............................................................................................. 57

5.2.2.2.38 AT+IDEVE ............................................................................................ 58

5.2.2.2.39 AT+AABR ............................................................................................. 58

5.2.2.2.40 AT+RELD ............................................................................................. 58

5.2.2.2.41 AT+Z ..................................................................................................... 58

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5.2.2.2.42 AT+MID ................................................................................................ 58

5.2.2.2.43 AT+VER ............................................................................................... 59

5.2.2.2.44 AT+H .................................................................................................... 59

5.2.2.2.45 AT+ HTTPURL ..................................................................................... 59

5.2.2.2.46 AT+ HTTPTP ....................................................................................... 59

5.2.2.2.47 AT+ HTTPPH ....................................................................................... 60

5.2.2.2.48 AT+ HTTPCN ....................................................................................... 60

5.2.2.2.49 AT+ HTTPUA ....................................................................................... 60

5.2.2.2.50 AT+EPHYA ........................................................................................... 60

5.2.2.2.51 AT+EPHYB .......................................................................................... 61

6 USR-WIFI232-D2 Usage Introduction ............................................................................................ 61

6.1 Module Debug ....................................................................................................................... 61

6.1.1 Software Debug Tools ................................................................................................ 61

6.1.2 Network Connection ................................................................................................... 61

6.1.3 Debug .......................................................................................................................... 62

6.2 Use Cases ............................................................................................................................. 64

6.2.1 Wireless Control Application ...................................................................................... 64

6.2.2 Remote Management Application .............................................................................. 64

6.2.3 Transparent Serial Port Application ........................................................................... 65

6.2.4 Wireless Data Acquisition Card Application .............................................................. 66

Appendix A: Questions and Answers ................................................................................................. 68

Q1: How to configure transparent serial port application (TCP protocol) with two WIFI

modules? ...................................................................................................................................... 68

Q2: Where to Set WIFI Module LAN IP and WAN

IP

through Web Page ？............................ 69

Q3: How to configure transparent serial port application (UDP protocol) with two WIFI

modules? ...................................................................................................................................... 69

Q4: Where to set USR-WIFI232-D2 module network protocol (TCP/UDP)? ........................... 70

Q5: How to configure transparent serial port application: Two WIFI modules all configured as

STA

and connection through AP? ............................................................................................... 71

Q6: How to avoid IP address confliction when apply USR-WIFI232-D2 module? ................... 72

Q7: PC works as server, all WIFI modules works as data acquisition card and connect with

PC, how to configure this application? ....................................................................................... 72

Q8: WIFI module support UDP multicast? ................................................................................. 73

Q9:WIFI module operates in

STA

mode, the PC how to get the IP module? ........................... 74

Appendix b: evb reference design ..................................................................................................... 75

Appendix c: external power shutdown mode reference design ........................................................ 76

Appendix D: The FCC statement ....................................................................................................... 76

Appendix e: Contact Information ........................................................................................................ 78

Appendix f: Disclaimer ........................................................................................................................ 78

Appendix g: History ............................................................................................................................. 78

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1

1 Quick

Quick

Quick Start

Start

USR-WIFI232 -D2 series product is used to transm it data between RS232 and WIFI or Ethernet

TCPIP transparently, user can update the product to WIFI or Ethernet interface control without

know ing the WIFI , Ethernet and TCPIP detail. All the convert work is done by the module . F or

users, the RS232 side is only as a serial device,the WIFI side or Ethernet is TCPIP Socket data.

User can setup the work detail by sample settings which can setup via inside web pages or

RS232 port . T he setup work only need do once, then it will save the setting forever.

This chapter is a user guide for USR-WIFI232 -D2 series products. W e suggest users follow the

guide to test module at first, and will have a good understanding of the modules. U sers can also

choose the chapter which you are interested in to read. For specific details and instructions,

please refer to the following chapters.

1.1

1.1 Hardware

Hardware

Hardware connect

connect

In order to test this module, we need connect module RS232 to PC and also WIFI or Ethernet to

PC.

In order to test the communication between serial and WIFI or Ethernet network, we need to

connect the serial port to PC, and also connect WIFI or Ethernet networks to PC.

D

C

5

-

1

8

V

P

O

W

E

R

WIFI or

Ethernet

R

S

2

3

2

Figure 1 hardware

hardware

hardware connection

connection

connection diagram

diagram

About the serial connection, because the module RS232 is 3.3V TTL lev el, the computer can not

connect to module directly, the user needs to have a TTL to RS232 adapter cable and then

connect to the computer. in order to facilitate the test, we provide USR-WIFI232- D2-EVK

evaluation board for users to choose.

1.2

1.2 Network

Network

Network connection

connection

Open Wi-Fi, search network on the PC , as shown in below, USR-WIFI232- AP_3378 is the default

network name (SSID) of the module.

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Figure 2 WIFI

WIFI

WIFI Search

Search

Join the network, choose to automatically obtain

IP,

USR-WIFI232-D2 module supports DHCP

Server feature and is enabled by default.

Figure 3 WIFI

WIFI

WIFI connection

connection

Now, link led of USR-WIFI232- D2-EVK Evaluation Board is lighting.

1.3

1.3 C

C

C ommunication

ommunication

ommunication test

test

Module ’s default setting:



SSID:

SSID: USR-WIFI232-D2_xxxx(xxxx is the last of mac address);

Encryption

Encryption

Encryption mode

mode

mode :

:

:open ，none ;



UART:

UART: 57600 ,8,1,None ;

Network

Network

Network parameters

parameters

parameters ：TCP,Server,8899,10.10.100.254 ;

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IP:

IP:

IP: 10.10.100.254;

We just need to follow the parameters of the corresponding set of network communication

parameters, you can make serial < -- > WIFI or Ethernet communication, the steps are as follows:

1. Open test software USR-TCP232-Test ;

2. COM Settings area (left):

C hoose COM port witch has connect the module, there is COM3, choose band rate to 57600 , this

is the default band rate of WIFI module, Click Open COM port.

3. Net Settings area (right):

C hoose TCP client mode, Server IP write 10.10.100.254, it is the WIFI default IP address, Server

port to 8899, It is the default Port the WIFI module listen, Click Connect to link to the module.

Now, you can test send data between RS232 and WIFI.

COM port to WIFI: PC RS232 -> Module RS232 -> Module WIFI -> PC WIFI .

WIFI to COM port: PC WIFI or Ethernet -> Module WIFI or Ethernet -> Module RS232 -> PC

RS232.

Figure 4 serial

serial

serial /

/

/ network

network

network transmission

transmission

transmission test

test

2

2 Product

Product

Product Overview

Overview

2.1

2.1 General

General

General Description

Description

USR-WIFI232-D2 module is an integration of 802.11 b/g/n wi-fi module,which provide a wireless

interface and a Ethernet interface to any equipment with a Serial interface for data transfer.

The module used to MAC, Ethernet interface, baseband chip, RF transceiver unit, as well as the

power amplifier;Embedded firmware support wi-fi protocols and configuration, as well as the

network TCP/IP protocol stack.

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USR-WIFI232-D2 uses the industry's highest performance embedded industrial structure, and for

the application of smart furniture, smart grid, handheld devices, personal medical, industrial

control, etc. These data fields, do a professional optimization.

USR-WIFI232-D2 as a hotspot can accommodate 32 clients simultaneously wi - fi access, but also

can accommodate 32 TCP client .

Figure 5 B

B

B lock

lock

lock diagram

diagram

2.2

2.2 Device

Device

Device Features

Features



Support

Support

Support IEEE802.11b/g/n

IEEE802.11b/g/n

IEEE802.11b/g/n Wireless

Wireless

Wireless Standards

Standards



Support

Support

Support TCP/IP/UDP

TCP/IP/UDP

TCP/IP/UDP Network

Network

Network Protocols

Protocols



Support

Support

Support UART/GPIO/Ethernet

UART/GPIO/Ethernet

UART/GPIO/Ethernet Data

Data

Data Interface

Interface



Support

Support

Support Work

Work

Work As

As

As STA/AP

STA/AP

STA/AP /AP+STA

/AP+STA

/AP+STA Mode

Mode



Support

Support

Support Router/Bridge

Router/Bridge

Router/Bridge Mode

Mode

Mode Networking

Networking



Support

Support

Support Internal/External

Internal/External

Internal/External Antenna

Antenna

Antenna Option

Option



Support

Support

Support Transparent

Transparent

Transparent Transmission

Transmission

Transmission Mode

Mode



Support

Support

Support AT+

AT+

AT+ Instruction

Instruction

Instruction Set

Set

Set for

for

for Configuration

Configuration



Support

Support

Support Friendly

Friendly

Friendly Web

Web

Web Configuration

Configuration

Configuration Page

Page



Support

Support

Support Palmodic

Palmodic

Palmodic Signal

Signal



Support

Support

Support UART

UART

UART Auto-Frame

Auto-Frame

Auto-Frame Function

Function



Single

Single

Single +3.3V

+3.3V

+3.3V Power

Power

Power Supply

Supply

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

Small

Small

Small Size:

Size:

Size: 45*32

45*32

45*32 mm

mm



FCC/CE

FCC/CE

FCC/CE Certificated

Certificated

2.3

2.3 Device

Device

Device Paremeters

Paremeters

Table 1 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Module

Module

Module Technical

Technical

Technical Specifications

Specifications

Class

Class Item

Item

Item Parameters

Parameters

Wireless

Parameters

Certification FCC / CE

Wireless standard 802.11 b/g/n

Frequency range 2.412GHz-2.484GHz

Transmit Power

802.11b: +20 dBm (Max.)

802.11g: +18 dBm (Max.)

802.11n: +15 dBm (Max.)

Configurable

Receiver Sensitivity

802.11b: -89 dBm

802.11g: -81dBm

802.11n: -71dBm

Antenna Option

External : I-PEX Connector

Internal :On-board chip antenna

Hardware

Parameters

Data Interface

UART: 1200bps - 230400bps

GPIOs

Ethernet: 100Mpbs

Operating Voltage 3.3V (+/-5%)

Operating Current 170mA~300mA

Operating

Temperature

-25 ℃- 85 ℃

Storage Temperature

-40 ℃- 125 ℃

Dimensions and Size 45 × 32 × 8mm

Software

Parameters

Network Type Station /AP mode /STA+AP

Security Mechanisms WEP/WAP-PSK/WAP2-PSK/WAPI

Encryption WEP64/WEP128/TKIP/AES

Work Mode Transparent Transmission

Serial command AT+instruction set

Network Protocol

TCP/UDP/ARP/ICMP/DHCP/DNS/HT

TP

Max. TCP Connection 32

User Configuration

Web Server ＋AT command config.

2.4

2.4 Key

Key

Key Application

Application

Remote equipment monitoring

Industrial sensors and controls

Asset tracking and telemetry

Home automation

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Medical devices

2.5

2.5 Package

Package

Package Information

Information

2.5.1 Recommended Reflow Profile

Figure 6 Reflow

Reflow

Reflow Soldering

Soldering

Soldering Profile

Profile

Table 2 Reflow

Reflow

Reflow Soldering

Soldering

Soldering Parameter

Parameter

Note:

1. Recommend to supply N2 for reflow oven.

2. N2 atmosphere during reflow (O2<300ppm).

2.5.2 Device Handling Instruction (Module IC SMT Preparation)

Shelf life in sealed bag: 12 months, at <30 ℃and <60% relative humidity (RH)



After bag is opened, devices that will be re-baked required after last baked with window time

168 hours.



R ecommend to oven bake with N2 supplied.

Baked required with 24 hours at 125 ±5℃before rework process for two modules, one is

new module and two is board with module.

Recommend to store at ≦10% RH with vacuum packing.



If SMT process needs twice reflow:

(1) Top side SMT and reflow à (2) Bottom side SMT and reflow

Case 1: Wifi module mounted on top side. Need to bake when bottom side process over 168

hours window time, no need to bake within 168 hours.

Case 2: Wifi module mounted on bottom side, follow normal bake rule before process.

Note:

Window time means from last bake end to next reflow start that has 168 hours space.

2.5.3 Shipping Information

NO.

NO. Item

Item

Item Temperature

Temperature

Temperature (Degree)

(Degree)

Time(Sec)

1 Reflow Time Time of above 220

35~55 sec

2 Peak-Temp 260 max

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Figure 7 Shipping

Shipping

Shipping Information

Information

TRAY

TRAY Size: 420*245*34 mm

Note:

1 tray = 5*20 pcs = 100 pcs

1 box = 2 trays = 2*100 pcs = 200pcs

1 carton = 4 boxes = 4*200 pcs = 800pcs

3

3 Hardware

Hardware

Hardware Introduction

Introduction

3.1

3.1 Pins

Pins

Pins Definition

Definition

3.1.1 USR-WIFI232- D2 Pins Definition

Figure 8 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- D2

D2

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Figure 9 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- D2

D2

D2 Pins

Pins

Pins Map

Map

Table 3 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- D2

D2

D2 Pins

Pins

Pins Definition

Definition

Pin Description

Description

Description Name

Name

Name Directi

Directi

Directi o

o

n

Note

1

1Ethernet 1 Output+ TX1+ O +1.8V Ethernet Data

Interface

Support transformer and

direct connection (AC

couple) mode.

2

2Ethernet 1 Output - TX1- O

3

3Ethernet 1 Input+ RX1+

I

4

4Ethernet 1 Input - RX1-

I

5

5Ethernet1 LED NET1_LED O

Ethernet1 pilot light

6

UART Data Transmit UART_TXD O

If not use UART function ,

this 4 pins can be

configured as GPIO pins,

and can change GPIO pin

status through AT

command .

GPIO GPIO 3 I/O

7

UART Data Receive UART_RXD

I

8

GPIO GPIO 4 I/O

UART sends request

of data transmission

UART_RTS O

9

GPIO GPIO 5 I/O

UART receives data

transmission

permission

UART_CTS

I

10

Module reset signal nRST

I

“ Low ( 0 ) ” effective reset

input.

The reset duration should be

kept more than 300ms

11

Output 1.8V 1.8V O 1.8V@300mA, to the Eth

application

12

GND GND Power Ground

13

13 /14

/14

VCC 3.3V Power 3.3V @ 350mA power input

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15

GND GND Power Ground

16

WiFi status Indication L ink O “ 0 ” - WIFI connection

available, “ 1 ” - No WIFI

connection .

17

Indicate the module

status of power on

process

Ready O

“ 0 ” - Finish module boot up

process;

“ 1 ” - Module boot up not

finish.

18

Restore configuration Reload

I

Module will Restore factory

default configuration after set

this pin “ 0 ” more than 1s,

then set “ 1 ” .

19

19 Ethernet2 LED NET2_LED O

Ethernet2 pilot light

20

20 Ethernet 2 Output+ TX2+ O +1.8V Ethernet Data

Interface

Support transformer and

direct connection (AC

couple) mode.

21

21 Ethernet 2 Output - TX2- O

22

22 Ethernet 2 Input+ RX2+

I

23

23 Ethernet 2 Input - RX2-

I

3.1.2 USR-WIFI232-D2 Size

USR-WIFI232- D2 module Mechanical Size:

Figure 10 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- A/B

A/B

A/B Mechanical

Mechanical

Mechanical Size

Size

3.2

3.2 Antenna

Antenna

3.2.1 On-board Chip Antenna

USR-WIFI232-D2 supports a built-in antenna options, when customers choose a built-in antenna,

must comply with the following built-in antenna module placement of notes and general rules:

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Be in the user's PCB board, and the Light blue region ( 6X8 mm ) corresponding to the region

cannot be placed components and with GND;

Antenna must away from the metal, at least to the distance around the higher components above

10MM;

Antenna can no t be shielded by any meal enclosure; All cover, include plastic, shall away from

antenna at least 10MM;

Figure 11 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Chip

Chip

Chip Antenna

Antenna

Antenna Keep

Keep

Keep Out

Out

Out Region

Region

USR technological suggestions USR-WIFI232-D2 module be placed in the following areas of user

board, in order to reduce the antenna and a wireless signal influence, at the same time, please consult

with technology and technical support staff to assist module placement and associated regions of

Layout design.

Figure 12 Suggested

Suggested

Suggested Module

Module

Module Placement

Placement

Placement Region

Region

3.2.2 External Antenna

USR - WIFI232 - D2 module can be done by switching the resistance external antenna interface

to apply different customer application. If user select external antenna, USR-WIFI232-D2 modules

must be connected to the 2.4G antenna according to IEEE 802.11b/g/n standards.

The antenna parameters required as follows:

Figure 13 Switch

Switch

Switch R

R

R esistance

esistance

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As shown in figure, switch resistance is normally in the red areas.For external antenna, the

resistance change to blue area.

Table 4 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 External

External

External Antenna

Antenna

Antenna Parameters

Parameters

3.3

3.3 Evaluation

Evaluation

Evaluation Kit

Kit

USR provides the evaluation kit to promote user to familiar the product and develop the detailed

application. The evaluation kit shown as below, user can connect to USR-WIFI232-D2 module

with the RS-232 UART port, 100M Eth port or Wireless port to configure the parameters, manage

the module or do the some functional tests.

Figure 14 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- D2

D2

D2 module

module

module Evaluation

Evaluation

Evaluation Kit

Kit

Table 5 USR-WIFI232-

USR-WIFI232-

USR-WIFI232- D2

D2

D2 Evaluation

Evaluation

Evaluation Kit

Kit

Kit Interface

Interface

Interface Description

Description

Item Parameters

Frequency range 2.4~2.5GHz

Impedance 50 Ohm

VSWR 2 (Max)

Return Loss -10dB (Max)

Connector Type I-PEX or populate directly

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3.4

3.4 Hardware

Hardware

Hardware Reference

Reference

Reference Design

Design

3.4.1 Hardware Typical Application

Figure 15 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Hardware

Hardware

Hardware Typical

Typical

Typical Application

Application

Notes

Notes ：

nRST-

nRST- Module hardware reset signal. Input. Logics “ 0 ” effective.

There is 100K Ohm pull-up resister internal up to 3.3V. When module power up or some issue

happened, MCU need assert nRST signal “ 0 ” at least 300ms, then set ” 1 ” to keep module fully

reset.

Function

Name

Name Description

Description

External

Interface

DC jack

5V power input connector

DB9

Male serial jack of 9-pin,and used to connect to

PC

RJ-45 (1) 100M Eth Interface

RJ-45 (2) 100M Eth Interface

Module

2x 12 2 .54 mm DIP connector , connect WIFI

module

LED

LED Power

(Red)

3.3V Power Indicator

NET1 Ethernet1 LED

NET2 Ethernet2 LED

Ready Ready /GPIO Indicator

Link Link /GPIO Indicator

Button

Button Reset

Used to reset the module.

Reload Module restore to factory default configuration.

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Ready

Ready -

-

-Module boot up ready signal. Output. Logics “ 0 ” effective.

There is 4.7K Ohm pull-up resister internal up to 3.3V . The module will output “ 0 ” “ or “ Palmodic

Signal ” after normal boot up. This signal used to judge if module finish boot up and ready for

application or working at normal mode.

Link

Link -

-

-Module WIFI connection indication. Output.

There is 4.7K Ohm pull-up resister internal up to 3.3V . When module connect to AP (STA mode)

or some WiFi

STA

connect to module (AP mode), the module will output “ 0 ” . This signal used to

judge if module already at WiFi connection status.

nReload

nReload -Module restore to factory default configuration.Input. Logics “ 0 ” effective.

User can assert nReload signal “ 0 ” more than 3

’

s through button or MCU pin, then release,

module will restore to factory default configuration and re-start boot up process. User need add

4.7K~10K Ohm pull-up resister external the module. If not use this function, then can use AT

command AT+FRLDEN=off to disable it.

UART_TXD/RXD- UART port data transmit and receive signal.

There is 1K Ohm pull-down resister internal. User can ’ t add pull-up resister at these pins.

3.4.2 10/100M Ethernet Interface

User board put Ethernet transformer and RJ-45 connector. This is a general 10/100M Ethernet

phy layer connection. The reference design as following:

Figure 16 Ethernet

Ethernet

Ethernet Reference

Reference

Reference Design

Design

Design with

with

with Transformer

Transformer

3.4.3 UART Interface

UART interface is the serial data transmition interface mainly used for USR-WIFI232-D2 modules.

User can add RS-232 chipset on user board and convert the signal to RS-232 voltage to

communicate with outside equipment or sensors. USR-WIFI232-D2 modules UART interface

include 4 general signals: TXD/RXD/RTS/CTS. The hardware reference design with RS-232

chipset as following:

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Figure 17 Figure

Figure

Figure 10

10

10 UART

UART

UART Interface

Interface

Interface Reference

Reference

Reference Design

Design

Notes:

Notes: TXD pin is also hardware configuration pin internal module. So this pin MUST pull-down

during module power up. USR-WIFI232-D2 modules provide internal pull-down resister, user

can ’ t add pull-up/pull-down resister on user board, which may cause module can ’ t work.

3.4.4 Power Interface

USR-WIFI232-D2 module support single +3.3V power supply. The peak current shall about

350mA and normal WiFi working current shall about 200mA. The power save (WiFi OFF) mode

will about 100mA

Decoupling at power pin suggested, At least one 100uF , one 10uF and one 10 0n F capacitor

required at user board and put near module power input pin will increase the reliability and

performance.

4

4 Modules

Modules

Modules F

F

F unction

unction

unction D

D

D escription

escription

4.1

4.1 User

User

User configuration

configuration

configuration process

process

After USR-WIFI232-D2 module electric starter, based on user pre-set parameters, automatically

connect to wireless networks and servers, and enter the working mode is set to open in

accordance with the default serial port parameters.

The parameters which need to configure include:

Wireless Network Parameters

Wireless Network Name （SSID ）

Security Mode

Encryption Key

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TCP/UDP Linking Parameters

Protocol Type

Link Type （Server or Client ）

Target Port ID Number

Target Port IP Address

Serial Port Parameters

Baud Rate

Data Bit

Parity (Check) Bit

Stop Bit

Hardware Flow Control

Work Mode Selection

Transparent transmission /Serial command mode/GPIO mode/HTTPD Client mode

The following sections will introduce specific to each part in detail.

4.2

4.2 Working

Working

Working mode

mode

4.2.1 Transparent Transmission Mode

USR-WIFI232-D2 modules support serial interface transparent transmission mode. The benefit of

this mode is achieves a plug and play serial data port, and reduces user complexity furthest. In

this mode, user should only configure the necessary parameters. After power on, module can

automatically connect to the default wireless network and server.

As in this mode, the module's serial port always work in the transparent transmission mode, so

users only need to think of it as a virtual serial cable, and send and receive data as using a

simple serial. In other words, the serial cable of users

’

original serial devices is directly replaced

with the module; user devices can be easy for wireless data transmission without any changes.

The transparent transmission mode can fully compatible with user ’ s original software platform

and reduce the software development effort for integrate wireless data transmission.

Notes:

Notes: Users also open the serial port hardware flow control (CTS/RTS) function, so that we can

make the bit error rate to a minimum.If the user doesn't need hardware flow control function of the

serial port, only need to the corresponding pin foot (CTS/RTS) hung up.

4.2.2 Serial command mode

In this mode, the user can send the serial data to a different server address, this pattern can be

use UDP or TCP client sends data to the server.

Customer MCU send packets according to the following format, parsing module is finished, only

the n bytes of data sent to the destination address.When data is returned, not analytical data from

serial port output directly.

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Table 6 Protocol

Protocol

Protocol table

table

table of

of

of Serial

Serial

Serial command

command

command mode

mode

frame

header

length functio

n

byte

Backup

data area

Destinati

on port

Target

address

Data Sum

check

2 2

(n+m+5)

1 2 2 m n 1

frame

frame header

header

header ：

0x55 0xAA （Constant ）

Length

Length ：

Starting from the function byte, to Sum check (does not contain the sum check) all bytes.

High byte at the front

Function

Function byte

byte

byte ：

Bit0: （UDP:0 ;TCP:1 ）

Bit1: （Short connection:0;Long connection:1 ）

Bit2: （IP:0;Domain name:1 ）

Bit7: （cut protocol:0;full protocol:1 ）Note: currently only supports cut protocol

Notes:

Bit1:If it is a short connection, it sends data, and then will be disconnected; if it is long

connection, it sends data, connection will remain, until the re changing the target address.

Bit2:Indicates that the target address is

IP

or domain name. If it is

IP,

the target address is 4

bytes; if the domain name, the target address length for the entire domain name string length

(the last byte address is ‘ \0 ’ , that is the end of the string).

Bit7:Under the cut protocol, reply frame contains only data; Under the full protocol, reply

frame has "failed to send", "waiting for", "UDP radio response equipment IP" frame data.

Backup

Backup data

data

data area

area

area :

:

First byte:If it is a short connection, this position is TCP waits for the timeout time (1-255), if

the send command is completed, did not receive a response, then wait a few seconds and

the corresponding, if 5, said to wait for the 5S to disconnect; if the sending command,

immediately receive the returned data, then immediately disconnected; if it is long connection,

this position is 0x00.

Second byte:Reserve

Destination

Destination port

port

port :

:

Little endian, low byte in the former,such as port 23, here are 0x17 0x00

Target

Target address:

address:

If it is

IP,

is 4 bytes, for example, 192.168.0.7 said 0x07 0x00 0xA8 0xC0; if it is a domain

name, then the address of indefinite length,ending with the ’ \0'.

Data:

Variable length,the maximum not exceeding 1000bytes.

Sum

Sum check:

check:

From the function word to check byte (does not contain a check byte), add Sum check.

The following is an example of a specific application:

send data:0x55 0xaa 0x00 0x0a 0x00 0x00 0x00 0x21 0x00 0x85 0x00 0xA8 0xC0 0x01 0x0f

Length:0x00 0x0a

Function byte:0x00 (UDP;Short connection;IP;cut protocol)

Destination port :0x21 0x00(33)

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Target address: 0x85 0x00 0xA8 0xC0 (192.168.0.133)

Data:0x01(data length :1)

Sum check:0x0f ( 0x00+0x00+0x00+0x21+0x00+0x85+0x00+0xA8+0xC0+0x01=0x0f )

4.2.3 GPIO mode

USR-WIFI232-D2 module support GPIO mode,At GPIO,UART (TXD/ RXD/CTS/RTS) defined as

GPIO and others (Ready/Link/) also defined as GPIO pin.

When module works at GPIO mode, PC and other equipments can setup connection (TCP/UDP)

through WiFi, then read/write GPIO information through command.



GPIO n IN, Set GPIOn as input, Response GPIO OK or GPIO NOK;

GPIO n OUT 0, Set GPIOn as output and output ‘0’, Response GPIO OK or GPIO NOK;

GPIO n OUT 1, Set GPIOn as output and output ‘1’, Response GPIO OK or GPIO NOK;



GPIO n SW, Set GPIOn as output and switch the output status, Response GPIO OK or

GPIO NOK;

GPIO n PWM m1 m2, Set GPIOn output a wave: m1 is ‘high ’duration and m2 is ’low ’

duration (Time unit is ‘ms ’and minimal is 10ms), Response GPIO OK or GPIO NOK;

GPIO n GET, Read GPIOn status, Response I0,I1,O0,O1, means ”input low ”,”input

high ”,”output low ”,”output high ”

Notes: n can be 6,7,8,9,16,17 corresponding module pin. GPIO 4 can only defined as input and

GPIO 3 can only defined as output.

GPIO READ returns all current IO status, and GPIO n GET said method. Such as, I1I1I0I0I0I0O1,

I said input, O output. 0 low, 1 express high.

4.2.4 HTTPD Client mode

This mode is used to send data to the HTTP server.

After setting the HTTP header format by webpage or

AT

command, the data sent each time by

UART will add the HTTP header automatically.Convenient for the user directly submit data or

read data from the HTTP server.

Below is the specific application, for example:

The first set HTTP parameters using

AT

instructions.

AT+HTTPURL=192.168.1.1,80 The serveraddress and portsettings

AT+HTTPTP=POST Set the HTTP type, GET, PUT or POST

AT+HTTPPH=/set Set the path,the mostis50 bytes

AT+HTTPCN=keep-alive Set the Connection,maximum length of 20bytes

AT+HTTPUA=lwip13.2 Set the User-Agent,maximum length of 20bytes

If the sending data is 1234.In the 80 port of 192.168.1.1 will receive the following data

POST /set HTTP /1.1

Connection:keep-alive

User-Agent:lwip1.3.2

Content-Length:4

Host:192.168.1.1:80

1234

If the HTTP type is GET, the 80 port 192.168.1.1 receive data

POST /set 1234 HTTP /1.1

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Connection:keep-alive

User-Agent:lwip1.3.2

Content-Length:0

Host:192.168.1.1:80

Data received from server will be directly sent to the serial port,without any treatment.

4.3

4.3 Wireless

Wireless

Wireless Networking

Networking

USR-WIFI232-D2 module can be configured as both wireless

STA

and AP base on network type.

Logically there are two interfaces in USR-WIFI232-D2 . One is for STA, and another is for

AP.

When USR-WIFI232-D2 works as

AP,

other

STA

equipments are able to connect to wireless LAN

via USR-WIFI232-D2 module. Wireless Networking with USR-WIFI232-D2 is very flexible.

Following figure shows the functional architecture of USR-WIFI232-D2 module:

Figure 18 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Functional

Functional

Functional Architecture

Architecture

Notes:

AP:

AP: that is the wireless Access Point, the founder of a wireless network and the cent er of the

network nodes. The wireless router we use at home or in office may be an

AP.

STA:

STA: short for Station, each terminal connects to a wireless network (such as laptops, PDA and

other networking devices) can be called with a

STA

device.

4.3.1 STA

Infrastructure: it

’

s also called basic network. It built by AP and many STAs which join in.

The characters of network of this type are that AP is the cent er , and all communication between

STAs is transmitted through the

AP.

The figure following shows such type of networking.

AP

USR

-

WIFI

232

-

D 2

USR

-

WIFI

232

-

D 2

USR

-

WIFI

232

-

D 2

UART

User Device

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Figure 19 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Basic

Basic

Basic Wireless

Wireless

Wireless Network

Network

Network Structure

Structure

4.3.2 AP

Because USR-WIFI232-D2 can be set to

AP,

can also be set to STA, so the USR-WIFI232-D2

can be achieved easily wireless ad hoc network.

As showing in the figure below, USR-WIFI232-D2 (1) can be treat as an

AP,

and USR-WIFI232-

D2 (2), USR-WIFI232-D2 (3) and the laptop are STAs connected to USR-WIFI232-D2 (1).

Meanwhile, all USR-WIFI232-D2 modules can connected to user device via UART interface. All

USR-WIFI232-D2 modules can be operated and managed through the laptop. So it is convenient

to O&M all USR-WIFI232-D2 modules. Moreover, in such Adhoc network structure, the whole

coverage of a wireless network can be extended easily.

PC

USR

-

WIFI

232

- D 2

User Device

UART

USR

-

WIFI

232

-D2

USR

-

WIFI

232

- D 2

UART

User Device

Figure 20 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 STA

STA

STA Network

Network

Network Structure

Structure

4.3.3 AP+STA

USR-WIFI232-D2 module support AP+STA network mode, means module support one AP

interface and one

STA

interface at the same time, as following figure,

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AP

User

Device

UART

Phone

USR

-

WIFI

232

- D 2

Tcp

Client

Tcp

server

Tcp server

Tcpb

Figure 21 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 AP+STA

AP+STA

AP+STA Network

Network

Network Structure

Structure

When module enables AP+STA function, Module ’ s

STA

interface can connect with router and

connect to TCP server in the network. At the same time, module ’ s AP interface is also active and

permit phone/PAD to connect through TCPB, then phone/PAD can control user device and and

setting the module parameters,

The advantage of AP+STA mode is:

Users can easily setting and track user device through Phone/PAD and not change the

orginal network setting.

Users can easily setting module

’

s parameters through WiFi when module works as

STA

mode.

AP+STA

AP+STA Mode

Mode

Mode Setting:

Setting:

AP+STA mode need serial

AT

command to enable as follows:

AT+FAPSTA=on, Enable AP+STA mode;

Then, when you configure module works as

STA

mode, it

’

s AP interface still active;

AP+STA

AP+STA Mode

Mode

Mode Notes:

Notes:

When user enable AT+STA function,the

STA

port need to keep connected with other

router(AP),

or

STA

port will have to scan the AP frequently ,which will affect AP port function and may cause

some date loss.

So ,if user confirm

STA

port can't connect with AP at some time,user can disable the

STA

scan

through the following command:

AT+STTC=on/off,on:Scan AP;off:N o Scan

AP.

After re-start module,this command not saved;

AT+FSTTC=on/off;

This command is saved after re-staring the module;

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4.4

4.4 Ethernet

Ethernet

Ethernet Interface

Interface

Interface Communication

Communication

USR-WIFI232-D2 module provides one 100M Ethernet interface. With this Ethernet interface,

user can easily realize the three interface (WiFi, UART, and Ethernet) intercommunication and

networking. USR-WIFI232-D2 module can configured as Bridge Mode or Router Mode base on

different networking technology.

Notes: As the Ethernet mode will increase additional consumption, so it is default closed. If you

need this function, pls use AT+FEPHY=on to open it and RELD can ’ t change this. F or different

application, USR-WIFI232-610 need version switch via commands (such as following description

of N-ver and Z-ver). With command AT+FVER=n to switch to N-ver and with command

AT+FVER=z to switch to Z-ver.

4.4.1 USR-WIFI232-D2 Ethernet Interface Networking (As AP)

PC

1

PC

2

USR

-

WIFI

232

- D 2

IP

：

10

.

10

.

100

.

101

GateWay

：

10

.

10

.

100

.

254

AP

IP

：

10

.

10

.

100

.

254

IP

：

10

.

10

.

100

.

100

GateWay

：

10

.

10

.

100

.

254

100

M Eth

Figure 22 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Ethernet

Ethernet

Ethernet Interface

Interface

Interface Networking

Networking

Networking (As

(As

(As AP)

AP)

USR-WIFI232-D2 module works as AP and also the cent er of this network. All devices

’

IP address

in this network shall use the same network segment with USR-WIFI232-D2 and they can

ntercommunication with this method.

4.4.2 USR-WIFI232-D2 Ethernet Interface Networking (As STA, N-Ver)

PC

1

USR

-

WIFI

232

- D 2

AP

PC

2

IP

：

10

.

10

.

100

.

101

GateWay

：

10

.

10

.

100

.

254

IP

：

10

.

10

.

100

.

254

IP

：

192

.

168

. 1 .

101

GateWay

：

192

.

168

. 1 .

101

IP

：

192

.

168

. 1 . 1

IP

：

192

.

168

.1.

100

GateWay

：

192

.

168

. 1 . 1

100

M Eth

STA N

-

Ver

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Figure 23 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Ethernet

Ethernet

Ethernet Interface

Interface

Interface Networking

Networking

Networking (As

(As

(As STA

STA

STA ,

,

, N-Ver

N-Ver

N-Ver )

)

USR-WIFI232-D2 module works as

STA

(Software is N-Version ), and module set as router mode.

When module connect to

AP,

it will get wireless port IP address from AP ( For example:

192.168.1.100 ) . At the same time, module also form a subnet ( Default 10.10.100.254 ) and all

devices connected to module Ethernet interface will get assigned IP address ( For example:

10.10.100.101 ) .So as shown , PC1 at internal subnet can initiate a connection to PC2 (For USR-

WIFI232-D2 works as router mode), but PC2 can ’ t active initiate a connection to PC1.

4.4.3 USR-WIFI232-D2 Ethernet Interface Networking (As STA, Z-Ver)

PC

1

USR

-

WIFI

232

-D2

AP

PC

2

IP

：

192

.

168

. 1 .

101

GateWay

：

192

.

168

. 1 . 1

IP

：

192

.

168

. 1 .

10

GateWay

：

192

.

168

. 1 . 1

IP

：

192

.

168

. 1 . 1

IP

：

192

.

168

. 1 .

100

GateWay

：

192

.

168

. 1 . 1

100

M Eth

STA Z

-

Ver

Figure 24 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Ethernet

Ethernet

Ethernet Interface

Interface

Interface Networking

Networking

Networking (As

(As

(As STA

STA

STA ,

,

, Z-Ver

Z-Ver

Z-Ver )

)

For above networking, USR-WIFI232-D2 module works as STA （Firmware is Z-Version ）,and

module configured as bridge mode. When module connect to

AP,

all devices connected to

module Ethernet interface will get assigned IP address from AP (For example: 192.168.1.101).For

module works as bridge mode, it can be treated as a transparent device and PC1, PC2 can

communicate without any limit. But in this networking, USR-WIFI232-D2 module needs assign a

static LAN

IP

address (For example: 192.168.1.10) if module also needs communication with AP

or configuration through web page.

4.5

4.5 WI-FI

WI-FI

WI-FI parameter

parameter

parameter setting

setting

4.5.1 Auto- Frequency Function

When module works as STA, USR-WIFI232-D2 will adjust its wireless channel to keep the same

channel with associated AP and connect in.

When module works as AP and USR-WIFI232-D2 enable Auto-frequency function, then when

module boot up, it will select the best wireless channel based on surrounding environment.

4.5.2 Security

USR-WIFI232-D2 module supports multiple wireless encryption mechanisms, and enables to

protect the security of user

’

s data transmission, the mechanisms include:

WEP

WPA-PSK/TKIP

WPA-PSK/AES

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WPA2-PSK/TKIP

WPA2-PSK/AES

4.5.3 Search Function for STA

When using web configuration

STA

Interface Setting Page, user can push “ Search ” button to find

surrounding

AP,

and find a AP to associated.

Figure 25 Search

Search

Search page

page

4.5.4 Address Binding

USR-WIFI232-D2 module supports the feature of binding the BSSID address of target network.

According to the provisions of 802.11 protocol, different wireless networks can have a same

network name (i.e. SSID / ESSID), but must correspond to a unique BSSID address (i.e. MAC

address). Illegal intruders can create a wireless network with the same SSID / ESSID, it will make

STAs in the network to join to the illegal

AP,

thereby and then network leakage happen.

Users can prevent

STA

from joining to illegal network by binding the BSSID address, to improve

wireless network security.

4.6

4.6 UART

UART

UART Frame

Frame

Frame Scheme

Scheme

4.6.1 UART Free-Frame

USR-WIFI232-D2 support UART free-frame function. If user select open this function, module will

check the intervals between any two bytes when rec ei ving UART data. If this interval time

exceeds defined value (50ms default), USR-WIFI232-D2 will think it as the end of one frame and

transfer this free-frame to WiFi port, or USR-WIFI232-D2 will receive UART data until 4K bytes,

then transfer 4KB frame to WiFi port.

USR-WIFI232-D2 ’ s default interval time is 50ms. User can also set this interval to fast (10ms)

through

AT

command. But user have to consider if user MCU can send UART data with 10ms

interval ,or the UART data may be divide as fragment.

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Through

AT

command: AT+FUARTTE=fas t /normal, user can set the interval time: fast (10ms) and

normal (50ms). This command is factory default setting command and AT+RELD can ’ t change its

value.

4.6.2 UART Auto-Frame

USR-WIFI232-D2 support UART auto-frame function. If user select open this function and setting

auto-frame trigger length and auto-frame trigger time parameters, then module will auto framing

the data which received from UART port and transmitting to the network as pre-defined data

structure.



Auto-frame

Auto-frame trigger

trigger

trigger length:

length:

length: The fixed data length that module used to transmitting to the

network.



Auto-frame

Auto-frame trigger

trigger

trigger time:

time:

time: After the trigger time, if UART port received data can ’ t reach auto-

frame trigger length, then module will transmitting available data to the network and bypass

the auto-frame trigger length condition.

Detailed UART auto-frame function can refer to AT+ instruction set “ UARTF/UARTFT/UARTFL ”

introduction.

4.7

4.7 Network

Network

Network Setting

Setting

USR-WIFI232-D2 module has two TCP/UDP Socket: Socket A and Socket B. Serial data written

to the module, will be sent to the Socket

A

and B simultaneously; TCP/UDP data that module

receives through either Socket

A

or B,will be sent to the serial port.

Dual Socket through different settings, you can achieve a variety of network interconnect. When

the module shipped only open Socket A, Socket B default is not to connect, if the user needs to

use, please set by

AT

commands.

4.7.1 Socket A

Socket A has three work mode: TCP Server, TCP Client, UDP.The setting method, please refer to

the AT+NETP command instruction.

When Socket

A

configured as TCP Server, it supports Multi-TCP link connection, and maximum

32 TCP clients permitted to connect to Socket A.

Multi-TCP link connection will work as following structure:

Upstream: All dates from different TCP connection or client will be transmitted to the serial port as

a sequence.

Downstream: All data from serial port (user) will be duplicate and broadcast to every TCP

connection or client.

Detailed multi-TCP link data transmition structure as following figure:

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Figure 26 Multi-TCP

Multi-TCP

Multi-TCP Link

Link

Link Data

Data

Data Transmition

Transmition

Transmition Structure

Structure

4.7.2 Socket B

Socket B has one work mode: TCP Client, please refer to the AT + SOCKB command instruction.

With variety work mode, socket B can provide users with flexible data transfer methods.For

example, Socket B can connect to a remote server in order to achieve remote control.

4.8

4.8 New

New

New function

function

This chapter is based on the function of V4.02.10.USR13 and above, if not this version you can

skip this section.

4.8.1 TCP password authentication

This feature is available only on the module as a TCP server, when the TCP client connection

module, the module will authenticate each connected tcp.

Each TCP client first data is the “ password +0x0d+0x0a ” (the password is Webpage

authentication password). The default password is “ admin ” , so the first piece of data should be

"0x61 0x64 0x6D 0x69 0x6E 0x0D 0x0A" ( Hex ). If the password is correct, the module returns

"OK", on the other hand, return to the "NO" and disconnect.

The TCP connection of this function can be Webpage in "TCP connection password

authentication" is opened or disable. Please refer to the specific "5.1.2" section.

4.8.2 Upload ID

This function only applies to the module as a TCP client, in front of the data when module

connected to the server with two bytes of ID (ID the range is 0 ~ 65535, the high byte before, and

the low byte behind) plus two bytes ID radix-minus-one complement.Module is the default ID is

1111,

for example, is sent to the server when the first four bytes "0x57 0x04 0xfb 0 xa8".

There are two ways to upload their own id: one is to upload their own id for connection to the

server for the first time;The other is a plus id in front of each data.

ID number related parameter is set in the "serial port and other Settings" section of the web, build

joint function of ID for the first time, and each data with the function of ID are opened by default.

ID can also use the at command to set the related parameters, specific refer to 5.2.1.4.32-

5.2.1.4.34 section.

4.8.3 S elf-adaption Baudrate

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This feature, please cooperate with our company's virtual serial port software use.

Use a serial port connected module, and use the at command "at + AABR = on" open this

function and restart.In the USR - VOCM software "synchronous baud rate (RFC2217 similar )" is

selected, the following figure .

Figure 27 RFC

RFC

RFC 2217

2217

In this way, the module of baud rate will be as the USR-VCOM to change at any time, and don't

have to restart the module.If restart the module, baud rate and will come back to before.

4.8.4 WEB IO

This function only work for "GPIO mode".

When the module is in the "GPIO mode", enter the Webpage in " WEB IO ", you can click on the

corresponding button to control module pin level. Without the need to download and install app,

any platform, any equipment, as long as you can into the built-in Webpage of module through the

browser built- you can control module pin of IO.

4.8.5 Keepalive

V4.02.10. USR13 and above version of the firmware added keepalive when the TCP connection

mechanism, so when the module of network anomalies, timely diagnose abnormal to the network

and disconnect, when the network has resumed after, and just in time to connect to the server.

4.8.6 Multiple

STA

parameters

This function based on V4.02.10 D.U SR18 and above version of the firmware, in the sta mode, if

can network signal is too low, it will automatically switch to the other AP network (switching

network automatically restart).

This feature provides a signal threshold, when the current network signals is lower than the

critical value, the module of automatic switching network and restart.If the signal value is set to

100, the module will not switch network.Even if the current network signal is not the current

network will always search, not heavy to other networks.

The function of the specific Settings page refer to section 4.5.4.

4.8.7 Websocket

This module can realize the function of the websocket server, allowing serial real-time interaction

with the web module, replace the previous HTTP GET, POST, corresponding faster.This module

provides the corresponding websocket test page for user testing, specific page is as follows:(web

Page:10.10.100.254/websocketen.html)

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Figure 28 Websocket

Websocket

Websocket Page

Page

Click on the "connect" page and then implements a connection, so a serial port with page can

send or receive data from each other.This module websocket server support 8 client connection

at the same time.

This function for web applications, and for web users with higher response speed, if you want to

customize the corresponding web page, can connect your company.

4.9

4.9 Palmodic

Palmodic

Palmodic Signal

Signal

Base on selected factory default setting, “ Ready ” signal can have two output statuses:

Status One: The module will output “0”after normal boot up. This signal used to judge if

module finish boot up and ready for application.

Status Two: The module will output “Palmodic Signal ”after normal boot up.The palmodic

signal is 0.5Hz square wave with dutyfactor 1:1. User can query this signal to judge if

moduleis active “live ”or need to re-boot. When module switches to command mode, it will

output “0”, which used to distinguish work mode and command mode.

Notes:

This function is user selected factory setting and RELD instruction will not effective for this

function. If user not requires this function, the default factory setting is Status One. Contact with

USR Technology for more detailed support.

4.10

4.10 Parameters

Parameters

Parameters Configuration

Configuration

USR-WIFI232-D2 module support s two methods to configuration parameters: Web

Web

Web Accessing

Accessing

and AT+instruction

AT+instruction

AT+instruction set.

set.

Web accessing means users can configure parameters through built-in webpage. When USR-

WIFI232-D2 module connected to wireless network, parameters configuration is done on a PC

connected to the same wireless network. AT+instruction set configuration means user configure

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parameters through serial interface command. Refer to “ AT+instruction set ” chapter for more

detail.

Notes:

USR can customized the parameters setting as customer request and ship USR-WIFI232-D2

modules with these parameters as factory default configuration. It will reduce user ’ s module

configuration time for mass production. Also, if user need different parameters setting for every

module, USR can provide the auto-configuration tool to speed up the module con fi guration

duration. Please contact USR technical interface to acquire this tool if required.

4.11

4.11 Firmware

Firmware

Firmware Upgrade

Upgrade

USR-WIFI232-D2 module supports firmware upgrade online .

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5

5 Web

Web

Web Accessing

Accessing

Accessing and

and

and AT+instruction

AT+instruction

AT+instruction set

set

5.1

5.1 Configuration

Configuration

Configuration via

via

via Web

Web

Web Accessing

Accessing

When first use USR-WIFI232-D2 modules, user may need some configuration. User can connect

to USR-WIFI232-D2 module ’ s wireless interface with following default setting information and

configure the module through laptop.

Table 7 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Web

Web

Web Access

Access

Access Default

Default

Default Setting

Setting

Parameters

Parameters Default

Default

Default Setting

Setting

SSID USR-WIFI232-A P_xxxx

IP Address 10.10.10 0 .254

Subnet Mask

255.255.255.0

User Name

admin

Password admin

5.1.1 Open Web Management Interface

Step 1: Connect laptop to SSID “ USR-WIFI232-AP_xxxx ” of USR-WIFI232-D2 module via

wireless LAN card;

Step 2: After wireless connection OK. Open browser and access “ http://10.10.100.254

http://10.10.100.254

http://10.10.100.254 ” ;

Step 3: Then input user name and password in the page as following and click “ OK ” button.

Figure 29 Open

Open

Open Web

Web

Web Management

Management

Management page

page

The USR-WIFI232-D2 web management page support English and Chinese language. User can

select language environment at the top right corner and click “ Apply ” button.

The main menu include nine pages: “ Quick Configure ” , “ Mode Selection ” , ” AP Interface

Setting ” , ”

STA

Interface Setting ” , ” Application Setting ” , “ Ethernet Setting ” , ’’ HTTPD Client

m ode ” , “ WEB IO ” and “ Device Management ” .

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5.1.2 Quick Configure

This page provides users with a method of rapid configuration module.Users according to the

steps to configure the parameters and restart the module page, you can let the module is normal

work, reduced the configuration steps and time.Of course the options on this page is less, if some

detailed configuration, still need to the corresponding configuration page.

Figure 30 Quick

Quick

Quick Configure

Configure

Configure Page

Page

This page has four configuration options and a restart, the corresponding instructions below:

WI-FI Setting: set the working mode of wifi, AP mode or the STA.

Ethernet Ports Setting: open/close the Ethernet ports, and set up the corresponding work

mode.

UART Setting: set serial port parameters, including baud rate, parity bit, 485 functions and so

on.

Network Setting: set network parameters, Only TCPA related parameters.

Device Management: when after completion of the above parameters are configured, click

reset module.

5.1.3 Mode Selection Page

This page use to setting the wireless networking mode (AP and

STA

mode).

"Data transmission mode" selection module working mode are "Transparent Mode", "Serial Command

mode", "GPIO mode" and ”” HTTPD-Client Mode ” .

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Figure 31 Mode

Mode

Mode Selection

Selection

Selection Page

Page

5.1.4 AP Interface Setting Page

This page use to setting the parameters when USR-WIFI232-D2 module works as

AP.

Figure 32 AP

AP

AP Interface

Interface

Interface Setting

Setting

Setting Page

Page

5.1.5

STA

Interface Setting Page

This page use to setting the parameters when USR-WIFI232-D2 module works as STA.

Such as SSID of AP which module need to connected, and also select the networking type: DHCP or

static IP address.

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Figure 33 STA

STA

STA Interface

Interface

Interface Setting

Setting

Setting Page

Page

5.1.6 Application Setting Page

This page use to setting the parameters of serial port communication, such as UART

setting , UART AutoFrame Setting , Ethernet function ,Device ID setting and high layer network

protocol setting which used support serial communication.

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Figure 34 Application

Application

Application Setting

Setting

Setting Page

Page

Notes:

Generally, Network protocols support three modes: TCP

TCP

TCP Server

Server

Server ,TCP

TCP

TCP Client

Client

Client ,UDP

UDP

UDP Server

Server

Server ,UDP

UDP

Client

Client .

When the module is configured to UDP server side, the module will memory the UDP client end

of the last communication, and communication with this UDP client.While the UDP client mode

will only with the target

IP

address and communication.When set to the TCP Server, do not need

to enter the IP address.For other Settings, need to fill in the need to connect each other IP

address.Fill in port with protocol port number, at the ends of the communication port number must

be the same.

The Socket B only as a TCP client terminal to communicate with the server.

TCP connection password authentication: when the module in the TCP server mode, password

authentication on the TCP client connect to.

Note: this verification is only in a module as a TCP server.After the opening, the TCP client connected

module, the first data which sent to the module is password and carriage returns.The password is the

password to login page default is "admin".Such as the default when sending the first data should be

"0x61 0x64 0x6D 0x69 0x6E 0x0D 0x0A" (hex) .

5.1.7 Ethernet Setting

This page is used to set two Ethernet front-end ports of the module, two Ethernet front-end ports

can be open or closed.And so the second can be set to the WAN port to use, this module can be

used as a secondary router, making it easy for users to network.Specific Settings page is as

follows:

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Figure 35 Ethernet

Ethernet

Ethernet Setting

Setting

Setting Page

Page

5.1.8 HTTPD Client Mode

This page sets the HTTP header in the HTTPD Client mode.Include: the address of the server,

the server port, request type, protocol header path, Connection, user-agent.

HTTPD Client mode support POST, PUT, GET three HTTP request types.Is a POST or PUT

request way, serial data can be added to the back of the HTTP header;When the request is a

GET, data can be added to the back of the path in the HTTP header.The specific way of sending

data can consult section 4.2.4.

Figure 36 HTTPD

HTTPD

HTTPD Client

Client

Client Mode

Mode

Mode Page

Page

5.1.9 WEB IO

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Figure 37 WEB

WEB

WEB IO

IO

IO Page

Page

5.1.10 Device Management Page

This page use to manage USR-WIFI232-D2 module general setting, such as administrator setting,

restart module button, restore factory default setting button, and update firmware through webpage.

Figure 38 Device

Device

Device Management

Management

Management Page

Page

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Notes:

Restart module button: When you setting the parameters of different web pages, you will click

“ Apply ” button to confirm the setting, but the setting take effect only after user click the “ Restart ”

button here, the module will re-boot up and ref re sh the memory information with new changes.

5.2

5.2 AT+instruction

AT+instruction

AT+instruction Introduction

Introduction

5.2.1 Configuration Mode

When USR-WIFI232-D2 power up, it will default works as transparent transmission mode, then

user can switch to configuration mode by serial port command. USR-WIFI232-D2 UART default

parameters setting as below figure

Figure 39 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Default

Default

Default UART

UART

UART Port

Port

Port Parameters

Parameters

In configuration mode, user can setting the module through AT+ instruction set, which cover all

web page setting function.

5.2.1.1 Switch to Configuration Mode

Two steps to finish switching from transparent transmission mode to configuration mode.



UART

UART

UART input

input

input “

“

“ +++

+++

+++ ”

”

” ,

,

, after

after

after module

module

module receive

receive

receive “

“

“ +++

+++

+++ ”

”

” ,

,

, and

and

and feedback

feedback

feedback “

“

“ a

a

a ”

”

” as

as

as confirmation.

confirmation.



UART

UART

UART input

input

input “

“

“ a

a

a ”

”

” ,

,

, after

after

after module

module

module receive

receive

receive “

“

“ a

a

a ”

”

” and

and

and feedback

feedback

feedback “

“

“ +ok

+ok

+ok ”

”

” to

to

to go

go

go into

into

into AT+

AT+

instruction

instruction set

set

set configuration

configuration

configuration mode.

mode.

Figure 40 Switch

Switch

Switch to

to

to Configuration

Configuration

Configuration Mode

Mode

Notes:

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1. When user input “ +++ ” (No “ Enter ” key required), the UART port will display feedback

information “ a ” , and not display input information ” +++ ” as above UART display.

2. Any other input or wrong step to UART port will cause the module still works as original mode

(transparent transmission).

5.2.2 AT+ Instruction Set Overview

User can input AT+ Instruction through hyper terminal or other serial debug terminal, also can

program the AT+ Instruction to script. User can also input “ AT+H ” to list all AT+ Instruction and

description to start.

Figure 41 ”

”

” AT+H

AT+H

AT+H ”

”

” Instruction

Instruction

Instruction for

for

for Help

Help

We supply software USR-WIFI232-Setup to send command easily, software setup:

Figure 42 Serial

Serial

Serial port

port

port parameter

parameter

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Click “ Open Com ” , send “ +++a ” , it will reply +ok in left side, then type in and send the command

you need to send, then click “ AT+RELD ” to restore, then parameters saved.

Figure 43 software

software

software of

of

of USR-WIFI232-Setup

USR-WIFI232-Setup

Above is by COM, also you can send by WIFI:

First, connect with PC, open the software, see Net part

Figure 44 Search

Search

Search module

module

Click search, then will show module, click module then you can send command.

5.2.2.1 Instruction Syntax Format

AT+Instruction protocol is based on the instruction of ASCII command style, the description of

syntax format as follow.



Format

Format

Format Description

Description

< >: Means the parts must be included

[ ]: Means the optional part

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

Command

Command

Command Message

Message

AT+<CMD>[op][para-1,para-2,para-3,para-4

AT+<CMD>[op][para-1,para-2,para-3,para-4 …

…

… ]<CR>

]<CR>

AT+: Prefix of command message;

CMD: Command string;

[op]: Symbol of command operator,

“ = ” : The command requires parameters input;

“ NULL ” : Query the current command parameters setting;

[para-n]: Parameters input for setting if required;

<CR> : ” Enter ” Key, it ’ s 0x0a or 0x0d in ASCII;

Notes

Notes : When input AT+Instruction, “ AT+<CMD> ” character will display capital letter automatic

and other parts will not change as you input.



Response

Response

Response Message

Message

+<RSP>[op]

+<RSP>[op] [para-1,para-2,para-3,para-4

[para-1,para-2,para-3,para-4

[para-1,para-2,para-3,para-4 …

…

… ]<CR><LF><CR><LF>

]<CR><LF><CR><LF>

+: Prefix of response message;

RSP: Response string;

“ ok ” : Success

“ ERR ” : Failure

[op] : =

[para-n]: Parameters if query command or Error code when error happened;

<CR>: ASCII 0x0d;

<LF>: ASCIII 0x0a;



Error

Error

Error Code

Code

Table 8 Error

Error

Error Code

Code

Code Description

Description

Description USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Web

Web

Web Access

Access

Access Default

Default

Default Setting

Setting

Error

Error Code

Code

Code Description

Description

-1 Invalid Command Format

-2 Invalid Command

-3 Invalid Operation Symbol

-4 Invalid Parameter

-5 Operation Not Permitted

5.2.2.2 AT+ Instruction Set

Table 9 AT+

AT+

AT+ Instruction

Instruction

Instruction Set

Set

Set List

List

Instruction

Instruction Description

Description

<null> NULL

E Open/Close show back function

ENTM Set module into transparent transmission mode

NETP Set/Query network protocol parameters

UART Set/Query serial port parameters

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UARTF Open/Close UART auto-frame function

UARTFT Set/Query UART auto-frame trigger time

UARTFL Set/Query UART auto-frame trigger length

TMODE Set/Query data transmission mode

(transparent transmission or agreement transmission)

WMODE Set/Query WIFI work mode (AP or STA)

WSKEY Set/Query WIFI security parameters as STA

WSSSID Set/Query WIFI target AP SSID parameters as STA

WSLK Query WiFi link status as STA

WEBU Set/Query WEB page login parameters

(User Name and Password)

WAP Set/Query WIFI parameters as AP

WAKEY Set/Query WIFI security parameters as AP

HIDESSID Set/Query hide AP ’ s SSID

MSLP Set modules into power save mode.(Turn OFF WiFi)

WSCAN Seek AP when module works as STA mode

TCPLK Query if TCP link already build-up

TCPDIS Open/Cose TCP (Only TCP Client available)

WANN Set/Query WAN setting, only effective as STA mode

LANN Set/Query LAN setting, only effective as AP mode

DHCPDEN Enable/Disable LAN DHCP server function

DHCPGW Set/Query DHCP gateway address

TCPTO Set/Query TCP timeout

MAXSK Set/Query maxima TCP connection

TCPB Open/Close TCPB function

TCPPTB Set/Query TCPB port number

TCPADDB Set/Query TCPB server address

TCPTOB Set/Query TCPB time out time

TCPLKB Query TCPB link status

STTC Enable/Disable STA port scan function

DOMAIN Set/Query domain of module webpage

FRLDEN Enable/Disable nReload pin function

RELD Restore to factory default setting

FUDLX Open / close the 485 function

MMID Device ID

IDFIR Send an ID when module connection is established

IDEVE Every time to send data to send ID

AABR Open / close baud rate adaptive function

MID Query module ID information

VER Query module software version information

H Help

HTTPURL Set /Query HTTP server IP address and Port Number

HTTPTP Set /Query HTTP request type

HTTPPH

Set/Query HTTP protocol header path

HTTPCN Set/Query Connection of HTTP protocol header

HTTPUA

Set/Query User-Agent of HTTP protocol header

EPHYA

Open/Close ETH 1 interface

EPHYB

Open/Close ETH 2 interface

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Notes:

Notes: USR-WIFI232-D2 module can works as AP or STA, user have to use different AT+ Instruction

to set WiFi parameters when module works as AP or

STA

mode.

5.2.2.2.1

5.2.2.2.1 AT+E

AT+E

Function: Open/Close show back function;

Format:

AT+E<CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

When USR-WIFI232-D2 module firstly switch from transparent transmission to configuration mode,

show back status is open, input “ AT+E ” to close show back function, input “ AT+E ” again to open show

back function.

5.2.2.2.2

5.2.2.2.2 AT+ENTM

AT+ENTM

Function: Set module into transparent transmi ss ion mode;

Format:

AT+ENTM<CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

When operate this command, module switch from configuration mode to transparent transmission

mode.

5.2.2.2.3

5.2.2.2.3 AT+NETP

AT+NETP

Function: Set/Query network protocol parameters;

Format:

Query Operation

AT+NETP<CR>

+ok=<protocol,CS,port,IP><CR><

+ok=<protocol,CS,port,IP><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+NETP=<protocol,CS,port,IP><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

protocol:

TCP

UDP

CS: Network mode:

SERVER

CLIENT

Port: protocol port ID: Decimal digit and less than 65535

IP: Server

’

s IP address when module set as client

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.4

5.2.2.2.4 AT+UART

AT+UART

Function: Set/Query serial port parameters;

Format:

Query Operation

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AT+UART<CR>

+ok=<baudrate,data_bits,stop_bit,parity,flowctrl><CR><

+ok=<baudrate,data_bits,stop_bit,parity,flowctrl><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+UART=<baudrate,data_bits,stop_bit,parity,flowctrl><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

baudrate:

50,75,110,134,150,200,300,600,1200,1800,2400,4800,9600,19200,38400,576

00,115200,230400,345600,460800

data_bits:

5,6,7,8

stop_bits:

1,2

parity:

NONE,EVEN,ODD,MARK,SPACE

flowctrl ：hardware flow control (CTSRTS)

NFC: No flow control

FC: flow control

After USR-WIFI232-D2 module boots up again , the setting will be effective.

5.2.2.2.5

5.2.2.2.5 AT+

AT+

AT+ UARTF

UARTF

Function: Open/Close UART auto-frame function;

Format:

Query Operation

AT+

AT+ UARTF<CR>

UARTF<CR>

+ok=<para><CR><

+ok=<para><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ UARTF=<para

UARTF=<para

UARTF=<para ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

para:

disable - Close auto-frame function;

enable - Open auto-frame function;

5.2.2.2.6

5.2.2.2.6 AT+

AT+

AT+ UARTFT

UARTFT

Function: Set/Query UART auto-frame trigger time;

Format:

Query Operation

AT+

AT+ UARTFT<CR>

UARTFT<CR>

+ok=<time><CR><

+ok=<time><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ UARTFT=<time

UARTFT=<time

UARTFT=<time ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

time: Range 100 ~10000; Unit: ms. Auto-frame trigger time

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5.2.2.2.7

5.2.2.2.7 AT+

AT+

AT+ UARTFL

UARTFL

Function: Set/Query UART auto-frame trigger length;

Format:

Query Operation

AT+

AT+ UARTFL<CR>

UARTFL<CR>

+ok=<len><CR><

+ok=<len><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ UARTFL=<len

UARTFL=<len

UARTFL=<len ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

len: Range 64 ~4096; Unit: byte. Auto-frame trigger length;

5.2.2.2.8

5.2.2.2.8 AT+TMODE

AT+TMODE

Function: Set/Query data transmi ss ion mode;

Format:

Query Operation

AT+TMODE<CR>

+ok=<tmode><CR><

+ok=<tmode><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TMODE=<tmode><CR>

TMODE=<tmode><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

tmode: Data transm iss ion mode

Through: Transparent transmi ss ion

Agreement: Agreement transmi ss ion

Httpdclient :Httpd C lient Mode

Gpio : GPIO Mode

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.9

5.2.2.2.9 AT+WMODE

AT+WMODE

Function: Set/Query WIFI work mode;

Format:

Query Operation

AT+WMODE<CR>

+ok=<mode><CR><

+ok=<mode><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WMODE=<mode><CR>

WMODE=<mode><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

mode:WIFI work mode

AP

STA

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.10

5.2.2.2.10 AT+WSKEY

AT+WSKEY

Function: Set/Query WIFI security parameters as STA;

Format:

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Query Operation

AT+WSKEY<CR>

+ok=<auth,encry,key><CR><

+ok=<auth,encry,key><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WSKEY=<

WSKEY=<

WSKEY=< auth,encry,key><CR>

auth,encry,key><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

auth: Authentication mode

OPEN

SHARED

WPAPSK

encry:Encryption algorithm

NONE: When “ auth=OPEN ” , effective

WEP: When “ auth=OPEN ” or “ SHARED ” , effective

TKIP: When ” auth= WPAPSK ” , effective

AES: When “ auth= WPAPSK ” , effective

key: password, ASCII code, shall less than 64 bit and greater than 8bit

This Instruction only effective for USR-WIFI232-D2 works as STA. After USR-WIFI232-D2 module

boots up again, the setting will be effective. But user can set this command when module configured

as

AP.

5.2.2.2.11

5.2.2.2.11 AT+WSSSID

AT+WSSSID

Function: Set/Query WIFI target AP SSID parameters as STA.

Format:

Query Operation

AT+WSSSID<CR>

+ok=<ap

’

s

s ssid><CR><

ssid><CR><

ssid><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WSSSID=<ap

WSSSID=<ap

’

s

s ssid

ssid

ssid ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

ap

’

s ssid: AP ’ s SSID

This Instruction only effective for USR-WIFI232-D2 works as STA. After USR-WIFI232-D2 module

boots up again, the setting will be effective. But user can set this command when module configured

as

AP.

5.2.2.2.12

5.2.2.2.12 AT+

AT+

AT+ WSLK

WSLK

Function: Query WiFi link status as STA

Format:

Query Operation

AT+

AT+ WSLK<CR>

WSLK<CR>

+ok=<ret><CR><

+ok=<ret><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

ret

” Disconnected ” , if no WiFi connection;

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” AP

’

SSID （AP ’ s MAC ” ）, if WiFi connection available;

” RF Off ” , if WiFi OFF;

This Instruction only effective for USR-WIFI232-D2 works as STA. After USR-WIFI232-D2 module

boots up again, the setting will be effective. But user can set this command when module configured

as

AP.

5.2.2.2.13

5.2.2.2.13 AT+WEBU

AT+WEBU

Function: Set/Query WEB page login parameters;

Format:

Query Operation

AT+WEBU<CR>

+ok=<usr,password><CR><

+ok=<usr,password><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WEBU=<

WEBU=<

WEBU=< usr,password

usr,password

usr,password ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

usr: User name for WEB page access;

password ：Password for WEB page access;

5.2.2.2.14

AT+WAP

Function: Set/Query WIFI parameters as AP;

Format:

Query Operation

AT+WAP<CR>

+ok=<wifi_mode,ssid,channel><CR><

+ok=<wifi_mode,ssid,channel><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WAP=<wifi_mode,ssid,channel><CR>

WAP=<wifi_mode,ssid,channel><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

wifi_mode: WiFi protocols

11BG

11B

11G

11BGN

11N

ssid: SSID when module works as AP;

channel: WIFI channel selection

AUTO

CH1~CH11

This Instruction only effective for USR-WIFI232-D2 works as

AP.

After USR-WIFI232-D2 module boots

up again, the setting will be effective. But user can set this command when module configured as STA.

5.2.2.2.15

5.2.2.2.15 AT+WAKEY

AT+WAKEY

Function: Set/Query WIFI security parameters as AP;

Format:

Query Operation

AT+WAKEY<CR>

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+ok=<auth,encry,key><CR><

+ok=<auth,encry,key><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WAKEY=<

WAKEY=<

WAKEY=< auth,encry,key><CR>

auth,encry,key><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

auth: Authentication mode

OPEN

SHARED

WPAPSK

encry:Encryption algorithm

NONE: When “ auth=OPEN ” , effective;

WEP: When “ auth=OPEN ” , effective or “ SHARED ” , effective;

TKIP: When “ auth=WPAPSK ” , effective;

AES:When “ auth=WPAPSK ” , effective;

TKIPAES:When “ auth=WPAPSK ” , effective;

key: password, ASCII code, shall less than 64 bit and greater than 8bit;

This Instruction only effective for USR-WIFI232-D2 works as AP. After USR-WIFI232-D2 module boots

up again, the setting will be effective. But user can set this command when module configured as STA.

5.2.2.2.16

5.2.2.2.16 AT+HIDESSID

AT+HIDESSID

Function: Set/Query hide AP

’

s SSID;

Format:

Query Operation

AT+HIDSSID<CR>

+ok=<sta.><CR><LF><CR><LF>

Set Operation

AT+HIDSSID=<sta><CR>

+ok<CR><LF><CR><LF>

Parameters:

When Query,sta reply if module ’ s SSID is hide;

On-not hide SSID

Off- hide SSID

When Set,

Off-hide SSID

On- not hide SSID

5.2.2.2.17

A

T+MSLP

Function: Set modules into power save mode.(Turn OFF WiFi);

Format:

Query Operation

AT+

AT+ MSLP

MSLP

MSLP <CR>

<CR>

+ok=<sta.><CR><

+ok=<sta.><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

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AT+

AT+ MSLP=<on/off><CR>

MSLP=<on/off><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

When Query,sta reply if the module in sleep mode;

On - Module not in sleep mode (WiFi ON);

Off - Module in sleep mode(WiFi OFF);

When Set,

Off - Set module to sleep mode (WiFi OFF);

On - Set module to normal mode (WiFi ON);

When module go into sleep mode, user can input “ AT+MSLP=on ” to re-start the module and module

go into transparent transmission mode.

5.2.2.2.18

5.2.2.2.18 AT+WSCAN

AT+WSCAN

Function: Seek AP when module works as

STA

mode;

Format:

AT+

AT+ WSCAN<CR>

WSCAN<CR>

+ok=<ap_site><CR><

+ok=<ap_site><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

ap_site: AP searched;

5.2.2.2.19

5.2.2.2.19 AT+

AT+

AT+ TCPLK

TCPLK

Function: Query if TCP link already build-up;

Format:

AT+

AT+ TCPLK<CR>

TCPLK<CR>

+ok=<sta><CR><

+ok=<sta><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

sta.: if module already setup TCP link;

on: TCP link setup;

off: TCP link not setup;

5.2.2.2.20

AT

+

+ TCPDIS

TCPDIS

Function: Open/Cose TCP (Only TCP Client available);

Format:

Query Operation

AT+TCPDIS<CR>

+ok=<sta><CR><

+ok=<sta><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPDIS=<on/off><CR>

TCPDIS=<on/off><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

sta.: set/qu er y TCP link status;

on: TCP link availab l e; When setting “ on ” , module will connect to TCP server

right away.

off: TCP link not availab l e; when setting “ off ” , module will disconnect with TCP

server and not connect again.

5.2.2.2.21

5.2.2.2.21 AT+

AT+

AT+ WANN

WANN

Function: Set/Query WAN setting, only effective as STA mode;

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Format:

Query Operation

AT+WANN<CR>

+ok=<mode,address,mask,gateway><CR><

+ok=<mode,address,mask,gateway><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ WANN=<

WANN=<

WANN=< mode,address,mask,gateway

mode,address,mask,gateway

mode,address,mask,gateway ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

mode: IP setting for WAN port

static: Static IP

DHCP: Dynamic IP

address: WAN port IP address;

mask: WAN port subnet mask;

gateway: WAN port gateway address;

This Instruction only effective for USR-WIFI232-D2 works as STA. After USR-WIFI232-D2 module

boots up again, the setting will be effective. But user can set this command when module configured

as

AP.

5.2.2.2.22

5.2.2.2.22 AT+

AT+

AT+ LANN

LANN

Function: Set/Query LAN setting, only effective as AP mode;

Format:

Query Operation

AT+LANN<CR>

+ok=<address,mask

+ok=<address,mask ><CR><

><CR><

><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ LANN=<address,mask

LANN=<address,mask

LANN=<address,mask ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

address: LAN port IP address;

mask: LAN port subnet mask;

This Instruction only effective for USR-WIFI232-D2 works as

AP.

After USR-WIFI232-D2 module boots

up again, the setting will be effective. But user can set this command when module configured as STA.

5.2.2.2.23

5.2.2.2.23 AT+DHCPDEN

AT+DHCPDEN

Function: Enable/Disable LAN DHCP server function;

Format:

Query Operation

AT+DHCPDEN<CR>

+ok=<sta><CR><LF><CR><LF>

Set Operation

AT+DHCPDEN=<sta><CR>

+ok<CR><LF><CR><LF>

Parameters:

sta.

If

Enable/Disable LAN DHCP server function;

on: Enable LAN DHCP function

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off: Disable LAN DHCP function

5.2.2.2.24

5.2.2.2.24 AT+

AT+

AT+ DHCPGW

DHCPGW

Function: Set/Query DHCP gateway address;

Format:

Query Operation

AT+

AT+ DHCPGW<CR>

DHCPGW<CR>

+ok=<address><CR><

+ok=<address><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ DHCPGW=<address

DHCPGW=<address

DHCPGW=<address ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

address: DHCP gate address;

5.2.2.2.25

5.2.2.2.25 AT+

AT+

AT+ TCPTO

TCPTO

Function: Set/Query TCP timeout;

Format:

Query Operation

AT+

AT+ TCPTO<CR>

TCPTO<CR>

+ok=<time><CR><

+ok=<time><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPTO=<time

TCPTO=<time

TCPTO=<time ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

time: TCP timeout time.

<= 600, (600s);

>=0, (0 means no timeout);

Default, 300s;

5.2.2.2.26

5.2.2.2.26 AT+

AT+

AT+ MAXSK

MAXSK

Function: Set/Query maxima TCP connection;

Format:

Query Operation

AT+

AT+ MAXSK<CR>

MAXSK<CR>

+ok=<num><CR><

+ok=<num><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ MAXSK

MAXSK

MAXSK =<num

=<num

=<num ><CR>

><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

num: 1~32, default 32. maxima TCP connection;

When configure as TCP/Server, USR-WIFI232-D2 support maxim a 32 TCP connections.

If

not require

so much connection, user can resetting this parameters.

5.2.2.2.27

5.2.2.2.27 AT+TCPB

AT+TCPB

Function: Open/Close TCPB function;

Format:

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Query Operation

AT+TCPB<CR>

+ok=<sta><CR><

+ok=<sta><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPB=<on/off><CR>

TCPB=<on/off><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

sta: TCPB enable status

on, TCPB enable

off, TCPB disable

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.28

5.2.2.2.28 AT+TCPPTB

AT+TCPPTB

Function: Set/Query TCPB port number;

Format:

Query Operation

AT+TCPPTB<CR>

+ok=<port><CR><

+ok=<port><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPB=<port><CR>

TCPB=<port><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

port: decimal ,<65535

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.29

5.2.2.2.29 AT+TCPADDB

AT+TCPADDB

Function: Set/Query TCPB server address;

Format:

Query Operation

AT+TCPADDB<CR>

+ok=<add><CR><

+ok=<add><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPADDB=<add><CR>

TCPADDB=<add><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

add: TCPB server address, can be IP address or url.

After USR-WIFI232-D2 module boots up again, the setting will be effective

5.2.2.2.30

5.2.2.2.30 AT+TCPTOB

AT+TCPTOB

Function: Set/Query TCPB time out time;

Format:

Query Operation

AT+TCPTOB<CR>

+ok=<time><CR><

+ok=<time><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ TCPTOB=<time><CR>

TCPTOB=<time><CR>

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+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

time: TCPB time out time, <=600 (600s), >=0 (No time out), default 300

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.31

5.2.2.2.31 AT+TCPLKB

AT+TCPLKB

Function: Query TCPB link status;

Format:

AT+TCPCKB<CR>

+ok=<sta><CR><

+ok=<sta><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

sta: TCPB link status

on, TCPB link OK

off, TCPB link not availab l e

5.2.2.2.32

5.2.2.2.32 AT+

AT+

AT+ STTC

STTC

Function : Enable/Disable STA port scan function

Format:

Query Operation

AT+

AT+ STTC

STTC

STTC <CR>

<CR>

+ok

+ok =<sta>

=<sta>

=<sta> <CR><

<CR><

<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+STTC=<on/off><CR>

+ok<CR><LF><CR><LF>

Parameters:

Sta: when query, this value feedback

On: Enable STA port scan function

Off: Disable STA port scan function

5.2.2.2.33

5.2.2.2.33 AT+DOMAIN

AT+DOMAIN

Function: Set/Query domain of module webpage;

Format

Query Operation

AT+DOMAIN<CR>

+ok=<domian><CR><LF><CR><LF>

Set Operation

AT+DOMAIN=<domain><CR>

+ok<CR><LF><CR><LF>

Parameters:

domain: domain to access to module webpage

5.2.2.2.34

5.2.2.2.34 AT+FRLDEN

AT+FRLDEN

Function: Enable/Disable nReload pin function;

Format:

Query Operation

AT+FRLDEN<CR>

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+ok=<on/off><CR><LF><CR><LF>

Set Operation

AT+FRELDEN=<on/off><CR>

+ok<CR><LF><CR><LF>

Parameters:

On/off: Enable or Disable nReload pin function

On, enable nReload pin function;

Off, disable nReload pin function;

Notes: AT+FRLDEN is F-Setting, means restore to factory setting will not affect this command.

5.2.2.2.35

5.2.2.2.35 AT+FUDLX

AT+FUDLX

Function: Enable/Disable 485 function;

Format:

Query Operation

AT+F

AT+F UDLX

UDLX

UDLX <CR>

<CR>

+ok=<on/off><CR><LF><CR><LF>

Set Operation

AT+F

AT+F UDLX

UDLX

UDLX =<on/off><CR>

=<on/off><CR>

+ok<CR><LF><CR><LF>

Parameters:

On/off: Enable or Disable 485 function

On, enable 485 function;

Off, disable 485 function;

Notes: AT+F UDLX is F-Setting, means restore to factory setting will not affect this command.

5.2.2.2.36

5.2.2.2.36 AT+

AT+

AT+ MMID

MMID

Function: Set/Query Device ID ;

Format:

Query Operation

AT+

AT+ MMID

MMID

MMID <CR>

<CR>

+ok=<time><CR><

+ok=<time><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation

AT+

AT+ MMID

MMID

MMID =<time><CR>

=<time><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

ID : device id(0~65535)

After USR-WIFI232-D2 module boots up again, the setting will be effective.

5.2.2.2.37

5.2.2.2.37 AT+IDFIR

AT+IDFIR

Function: Enable/Disable “ Send an ID when module connection is established ” function;

Format:

Query Operation

AT+

AT+ IDFIR

IDFIR

IDFIR <CR>

<CR>

+ok=<on/off><CR><LF><CR><LF>

Set Operation

AT+

AT+ IDFIR

IDFIR

IDFIR =<on/off><CR>

=<on/off><CR>

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+ok<CR><LF><CR><LF>

Parameters:

On/off: Enable or Disable “ Send an ID when module connection is established ”

function

On, enable “ Send an ID when module connection is established ” function;

Off, disable “ Send an ID when module connection is established ” function;

5.2.2.2.38

5.2.2.2.38 AT+IDEVE

AT+IDEVE

Function: Enable/Disable Every time to send data to send ID function;

Format:

Query Operation

AT+

AT+ IDEVE

IDEVE

IDEVE <CR>

<CR>

+ok=<on/off><CR><LF><CR><LF>

Set Operation

AT+

AT+ IDEVE

IDEVE

IDEVE =<on/off><CR>

=<on/off><CR>

+ok<CR><LF><CR><LF>

Parameters:

On/off: Enable or Disable Every time to send data to send ID function

On, enable Every time to send data to send ID function;

Off, disable Every time to send data to send ID function;

5.2.2.2.39

5.2.2.2.39 AT+AABR

AT+AABR

Function: Enable/Disable Self-adaption Baudrate function;

Format:

Query Operation

AT+

AT+ AABR

AABR

AABR <CR>

<CR>

+ok=<on/off><CR><LF><CR><LF>

Set Operation

AT+

AT+ AABR

AABR

AABR =<on/off><CR>

=<on/off><CR>

+ok<CR><LF><CR><LF>

Parameters:

On/off: Enable or Disable 485 function

On, enable 485 function;

Off, disable 485 function;

5.2.2.2.40

5.2.2.2.40 AT+RELD

AT+RELD

Function: Restore to factory default setting;

Format:

AT+

AT+ RELD<CR>

RELD<CR>

+ok=rebooting

+ok=rebooting …

…

… <CR><

<CR><

<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

This command restores the module to factory default setting, and then re-starts the module.

5.2.2.2.41

AT+Z

Function: Re-start module;

Format:

AT+

AT+ Z<CR>

Z<CR>

5.2.2.2.42

5.2.2.2.42 AT+MID

AT+MID

Function: Query module ID information;

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Format:

Query Operation

AT+MID<CR>

+ok=<module_id><CR><

+ok=<module_id><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

module_id: MID information;

A11-yymmddnnnn “ yymmdd ” date; “ nnnn ” serial number;

5.2.2.2.43

5.2.2.2.43 AT+VER

AT+VER

Function: Query module software version information;

Format:

Query Operation

AT+VER<CR>

+ok=<ver><CR><

+ok=<ver><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

ver: Module software version information;

5.2.2.2.44

5.2.2.2.44 AT+H

AT+H

Function: Help;

Format:

Query Operation

AT+H<CR>

+ok=<comm

+ok=<comm and

and

and help><CR><

help><CR><

help><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:



comm an d help: command introduction;

5.2.2.2.45

5.2.2.2.45 AT+

AT+

AT+ HTTPURL

HTTPURL

Function:Set /Query HTTP server IP address and Port Number.

Format:

Query Operation:

AT+HTTPURL<CR>

+ok=<IP,Port><CR><

+ok=<IP,Port><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation:

AT+HTTPURL=<IP,Port><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

IP:HTTP server IP address.

Port : HTTP server Port number 。

5.2.2.2.46

5.2.2.2.46 AT+

AT+

AT+ HTTPTP

HTTPTP

Function: Set /Query HTTP request type.

Format:

Query Operation:

AT+HTTPTP<CR>

+ok=<Type><CR><

+ok=<Type><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation:

AT+HTTPTP=<Type><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

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Parameters:

Type ：GET(default) or POST.

5.2.2.2.47

5.2.2.2.47 AT+

AT+

AT+ HTTPPH

HTTPPH

Function:Set/Query HTTP protocol header path.

Format:

Query Operation:

AT+HTTPPH<CR>

+ok=<Path><CR><

+ok=<Path><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation:

AT+HTTPPH=<Path><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

Path: Max length is 50 bytes.

5.2.2.2.48

5.2.2.2.48 AT+

AT+

AT+ HTTPCN

HTTPCN

Function:Set/Query Connection of HTTP protocol header.

Format:

Query Operation:

AT+HTTPCN<CR>

+ok=<Connection><CR><

+ok=<Connection><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation:

AT+HTTPCN=<Connection><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

Connection: Max length is 20 bytes.

5.2.2.2.49

5.2.2.2.49 AT+

AT+

AT+ HTTPUA

HTTPUA

Function:Set/Query User-Agent of HTTP protocol header.

Format:

Query Operation:

AT+HTTPUA<CR>

+ok=<Parameter><CR><

+ok=<Parameter><CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Set Operation:

AT+HTTPUA=<Parameter><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

Parameter: Max length is 20 bytes.

5.2.2.2.50

5.2.2.2.50 AT+EPHY

AT+EPHY

A

Function: Open/Close ETH 1 interface;

Format:

Set Operation

AT+

AT+ EPHY=<on/off><CR>

EPHY=<on/off><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

On/off

Off: Close Ethernet port 1 function;

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On: Open Ethernet port 1 function;

5.2.2.2.51

5.2.2.2.51 AT+EPHY

AT+EPHY

B

Function: Open/Close ETH 2 interface;

Format:

Set Operation

AT+

AT+ EPHY=<on/off><CR>

EPHY=<on/off><CR>

+ok<CR><

+ok<CR>< LF

LF

LF ><CR><

><CR><

><CR>< LF

LF

LF >

>

Parameters:

On/off

Off: Close Ethernet port 2 function;



On: Open Ethernet port 2 function;

6

6 USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Usage

Usage

Usage Introduction

Introduction

6.1

6.1 M

M

M odule

odule

odule D

D

D ebug

ebug

6.1.1 Software Debug Tools

In order to facilitate the use of my company, development of the serial and network debugging two-

in-one test software, USR-TCP232-Test

6.1.2 Network Connection

In order to test the serial port to the WIFI network address conversion, we will module serial connected

with the computer, network and computer links to WIFI.

Due to the need to have both a WIFI and serial special requirements, only a minority of the notebook

computer can achieve, the user can use the desktop with a USB card, or use the notebook computer

with a USB to serial line way, the author uses the desktop and WIFI card form test, desktop with serial.

( Note: there USB transfer RS232 the line quality uneven, some good and some bad, in order not to

waste your valuable time, look for buying a used FT232 chip scheme suggested switching line, about

the price $ 10 )

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D

C

5

-

1

8

V

P

O

W

E

R

WIFI or

Ethernet

R

S

2

3

2

Figure 45 Connection

Connection

Connection diagram

diagram

On the serial connection, module pin leads to 3.3V TTL level, not directly connected with the computer,

need to bring the bottom or users are TTL to RS232 connecting line connected to the computer, in

order to facilitate the user to test the use of, we provide a variety of floor for the user to choose, here in

the case of USR-WIFI232-2 .

Hardware connectivity, for module power supply, the red power indicator light, wait about 6 seconds

( internal system boot ), Ready lights, said system startup complete, can operate, entering the next

step.

6.1.3 Debug

As shown above, opened in PC program, set the COM export and open the serial port connection

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Figure 46 “

“

“ CommTools

CommTools

CommTools ”

”

” Serial

Serial

Serial Debug

Debug

Debug Tools

Tools

Open test software USR-TCP232-Test.exe, selection of hardware attached to the computer's serial

number, this is COM 1 , choose 57600 baud rate, such as the WIFI module serial default baud rate,

open the serial port.

Network settings in TCP client mode, the server IP address input 10.10.100.254, this is WIFI module

default IP address, server port number 8899, this module default monitor TCP port number, click the

link to establish TCP connection ,Then click the create connection.

Figure 47 “

“

“ TCP

TCP

TCP UDP

UDP

UDP Dbg

Dbg

Dbg ”

”

” Tools

Tools

Tools Create

Create

Create Connection

Connection

Because of the USR-WIFI232-D2 module default support for transparent transmission mode, so now

you can debug tools two-way data, all data will be wholly intact transmission to the other side of

display. The testing process can be seen in module TXD and RXD indicator lights in the data through

the flashing.

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Figure 48 The

The

The test

test

test results

results

results show

show

show that

that

that the

the

the network

network

network and

and

and serial

serial

serial port

port

Note

Note : because of the RTS/CTS pin processing difference, currently available on the part of the

serial debugging software for the module of the system is not available, please be sure to want to

use USR-TCP232-Test we provide testing, or just RXD TXD GND connected the three line to the

computer, please notice .

6.2

6.2 Use

Use

Use Cases

Cases

6.2.1 Wireless Control Application

USR

-

WIFI

232

-D2

User Device

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

UART

Figure 49 Wireless

Wireless

Wireless Control

Control

Control Application

Application

For this wireless control application, USR-WIFI232-D2 works as AP mode. Module ’ s serial port

connects to user device. So, control agent (Smart phone for this example) can manage and control the

user device through the wireless connection with USR-WIFI232-D2 module.

6.2.2 Remote Management Application

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USR

-

WIFI

232

-

D 2

STA

UART

USR

-

WIFI

232

-

D 2

STA

UART

Internet

User

Device

User

Device

Figure 50 Remote

Remote

Remote Management

Management

Management Application

Application

For this remote management application, USR-WIFI232-D2 works as STA mode and connects to

Internet through wireless

AP.

Module configured as TCP Client and communicates with remote TCP

server at Internet. Module ’ s serial port connects to user device.

So, user device ’ s data or sampling information can send to remote TCP server for storage or

processing. Also remote TCP server can send command to control and manage the user device

through the wireless network.

6.2.3 Transparent Serial Port Application

For this transparent serial port application, two USR-WIFI232-D2 modules connect as below figures to

build up a transparent serial port connection.

USR

-

WIFI

232

-

D 2

User

Device

UART

USR

-

WIFI

232

-

D 2

UART

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

:

10

.

10

.

100

.

254

Net Prot

:

Tcp Server

Protocol Port

:

8899

STA SSID

:

USR

-

WIFI

232

-

AP

_

xxxx

WAN IP

:

DHCP

Net Prot

:

Tcp client

10

.

10

.

100

.

254

:

8899

LAN IP

:

10

.

10

.

99

.

254

1 #

2 #

User

Device

Figure 51 Transparent

Transparent

Transparent Serial

Serial

Serial Port

Port

Port Application

Application

For left side USR-WIFI232-D2 module, configured as AP mode and use default SSID and IP address,

network protocol configured as TCP/Server mode, and protocol port ID: 8899.

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For right side USR-WIFI232-D2 module, configured as STA mode and setting the same SSID （” USR-

WIFI232-AP_xxxx ” for this example ）with left side USR-WIFI232-D2 module, enable DHCP network

and network protocol configured as TCP/Client mode, protocol port ID: 8899. Target IP address part

setting the same IP address with left side USR-WIFI232-D2 module ( “ 10.10.100.254 ” for this example).

When right side USR-WIFI232-D2 boot up, it will find wireless AP (SSID ：USR-WIFI232-AP_xxxx for

this example) and open TCP/Client network protocol to connect with left side module ’ s TCP/Server. All

these operation will be automatic and after finished, the two user devices connected to USR-WIFI232-

D2 module through serial port can communicate each other and think the connection between them is

fully transparent.

Note:

Note: LAN

LAN

LAN IP

IP

IP address

address

address and

and

and WAN

WAN

WAN port

port

port should

should

should in

in

in different

different

different segment,

segment,

segment, as

as

as picture

picture

picture shown,

shown,

shown, we

we

we change

change

to

to 10.10.99.254

10.10.99.254

10.10.99.254 (the

(the

(the address

address

address get

get

get from

from

from left

left

left module

module

module WAN

WAN

WAN port

port

port DHCP

DHCP

DHCP is

is

is 10.10.100.xxx)

10.10.100.xxx)

6.2.4 Wireless Data Acquisition Card Application

For this wireless data acquisition card application, one PC works as data server and every data

acquisition card connects with a USR-WIFI232-D2 module to support wireless connection function.

USR

-

WIFI

232

-

D 2

User

Device

UART

USR

-

WIFI

232

-

D 2

UART

IP

：

10

.

10

.

100

.

100

Net Prot

：

tcp

server

，

8899

STA SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

99

.

254

WAN IP

：

10

.

10

.

100

.

101

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

STA SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

98

.

254

WAN IP

：

10

.

10

.

100

.

102

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

100

.

254

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

User

Device

User

Device

Figure 52 Wireless

Wireless

Wireless Data

Data

Data Acquisition

Acquisition

Acquisition Card

Card

Card Application

Application

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 67 of 78 tec@usr.cn

As above figure, one USR-WIFI232-D2 configured as AP mode and all others configured as STA mode.

All USR-WIFI232-D2 which configured as

STA

and data server PC wireless connected to USR-

WIFI232-D2 which configured as AP to make up a wires network.

Data server PC open TCP/Server protocol and all USR-WIFI232-D2 modules open TCP/Client

protocol. All data acquisition cards

’

data and sampling information can be transmitted to data server

PC for operation.

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 68 of 78 tec@usr.cn

Appendix

Appendix A

A

A :

:

: Questions

Questions

Questions and

and

and Answers

Answers

Q1:

Q1: How

How

How to

to

to configure

configure

configure transparent

transparent

transparent serial

serial

serial port

port

port application

application

application (TCP

(TCP

protocol)

protocol) with

with

with two

two

two WIFI

WIFI

WIFI modules?

modules?

Network structure as below figure:

Module 1# Setting:

Works as AP mode;

--See “ Mode Selection Page

”

LAN IP address: 10.10.100.254;

--See “ AP Interface Setting Page

”

Network Protocal:TCP/Server, Port ID: 8899;

-- See “ Application Setting Page

”

(Module default setting);

Module 2# Setting:

Works as STA mode; --See “ Mode Selection Page ”

WAN connection type: DHCP or Static IP (For this example:10.10.100.100)

--See “ STA Interface Setting Page

”

Network Protocal:TCP/Client, Port ID: 8899; Application IP address: Module 1#

’

s LAN

IP address (10.10.100.254);

-- See “ Application Setting Page

”

Notes:

Notes:

Notes: When module 2# works as

STA

mode, module ’ s WiFi interface works as WAN

port. Module ’ s WAN IP address and LAN IP address shall be setting different segment.

So, module 2# ’ s LAN IP address must change to other segment; (For this sample, we

change to 10.10.99.254);

--See “ AP Interface Setting Page

”

USR

-

WIFI

232

-

D 2

User

Device

UART

USR

-

WIFI

232

-

D 2

UART

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

:

10

.

10

.

100

.

254

Net Prot

:

Tcp Server

Protocol Port

:

8899

STA SSID

:

USR

-

WIFI

232

-

AP

_

xxxx

WAN IP

:

DHCP

Net Prot

:

Tcp client

10

.

10

.

100

.

254

:

8899

LAN IP

:

10

.

10

.

99

.

254

1 #

2 #

User

Device

Figure 53 Configure

Configure

Configure Transparent

Transparent

Transparent Serial

Serial

Serial Port

Port

Port Connection

Connection

Connection (TCP)

(TCP)

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 69 of 78 tec@usr.cn

Q2:

Q2: Where

Where

Where to

to

to Set

Set

Set WIFI

WIFI

WIFI Module

Module

Module LAN

LAN

LAN IP

IP

IP and

and

and WAN

WAN

WAN IP

IP

IP through

through

through Web

Web

Page

Page ？

USR-WIFI232-D2 Wireless LAN IP address setting see “ AP Interface Setting Page ” as below

Figure,

Figure 54 Module

Module

Module LAN

LAN

LAN IP

IP

IP Setting

Setting

USR-WIFI232-D2 Wireless WAN IP address setting see “

STA

Interface Setting Page ” as below

Figure, User can set WAN connection type to DHCP and STATIC

IP.

Figure 55 Module

Module

Module WAN

WAN

WAN IP

IP

IP Setting

Setting

Q3:

Q3: How

How

How to

to

to configure

configure

configure transparent

transparent

transparent serial

serial

serial port

port

port application

application

application (UDP

(UDP

protocol)

protocol) with

with

with two

two

two WIFI

WIFI

WIFI modules?

modules?

Network structure as below figure:



Module 1# Setting:

Works as AP mode;

--See “ Mode Selection Page

”

LAN IP address: 10.10.100.254;

--See “ AP Interface Setting Page

”

Network Protocal:UDP, Port ID: 8899; Application IP address:10.10.100.100;

-- See “ Application Setting Page

”



Module 2# Setting:

Works as STA mode; --See “ Mode Selection Page ”

WAN connection type: Static IP (10.10.100.100)

--See “ STA Interface Setting Page

”

Network Protocal:UDP, Port ID: 8899; Application IP address: Module 1# ’ s LAN IP

address (10.10.100.254);

-- See “ Application Setting Page

”



LAN IP address: 10.10.99.254 (Different net segment with WAN port)

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 70 of 78 tec@usr.cn

--See “ AP Interface Setting Page

”

USR

-

WIFI

232

- D 2

User

Device

UART

USR

-

WIFI

232

-D2

UART

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

:

10

.

10

.

100

.

254

Net Prot

:

UDP

10

.

10

.

100

.

100

:

8899

STA SSID

:

USR

-

WIFI

232

-

AP

_

xxxx

WAN IP

:

DHCP

Net Prot

:

UDP

10

.

10

.

100

.

254

:

8899

LAN IP

:

10

.

10

.

99

.

254

1 #

2 #

User

Device

Figure 56 Configure

Configure

Configure Transparent

Transparent

Transparent Serial

Serial

Serial Port

Port

Port Connection

Connection

Connection (UDP)

(UDP)

Q4:

Q4: Where

Where

Where to

to

to set

set

set USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 module

module

module network

network

network protocol

protocol

protocol (TCP/UDP)?

(TCP/UDP)?

USR-WIFI232-D2 network protocol setting see “ Application Setting Page ” as below Figure,



Protocol: TCP Server



Only Port ID required: 8899 (Default)

Figure 57 Module

Module

Module Network

Network

Network Protocols:

Protocols:

Protocols: TCP/Server

TCP/Server



Protocol: TCP Client



Application IP address required: it ’ s target TCP server ‘ s IP address;



Port ID required: 8899 (Default)

Figure 58 Module

Module

Module Network

Network

Network Protocol:

Protocol:

Protocol: TCP/Client

TCP/Client



Protocol: UDP



No Server/Client selection required;

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 71 of 78 tec@usr.cn

Application IP address required: it ’ s target device ‘ s IP address;

Port ID required: 8899 (Default)

Figure 59 Module

Module

Module Network

Network

Network Protocol:

Protocol:

Protocol: UDP

UDP

Q5:

Q5: How

How

How to

to

to configure

configure

configure transparent

transparent

transparent serial

serial

serial port

port

port application:

application:

application: Two

Two

Two WIFI

WIFI

modules

modules all

all

all configured

configured

configured as

as

STA

and

and connection

connection

connection through

through

through AP?

AP?

Network structure as below figure:



Module 1# Setting: ( We use USR-WIFI232-D2 as AP for this example)

Works as AP mode and all default setting;



Module 2# Setting:

Works as STA mode; --See “ Mode Selection Page ”

WAN connection type: Static IP: 10.10.100.100;

--See “ STA Interface Setting Page

”

Network Protocal:TCP/Server, Port ID: 8899;

-- See “ Application Setting Page

”

LAN IP address: 10.10.99.254 (Different net segment with WAN port);

--See “ AP Interface Setting Page

”



Module 3# Setting:

Works as STA mode; --See “ Mode Selection Page ”

WAN connection type: Static IP: 10.10.100.101;

--See “ STA Interface Setting Page

”

Network Protocal:TCP/Client, Port ID: 8899; Application IP address: Module 2#

’

s WAN

IP address (10.10.100.100);

-- See “ Application Setting Page

”

LAN IP address: 10.10.98.254 (Different net segment with WAN port);

--See “ AP Interface Setting Page

”

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 72 of 78 tec@usr.cn

USR

-

WIFI

232

-D2

User

Device

UART

USR

-

WIFI

232

-

D 2

UART

USR

-

WIFI

232

- D 2

UART

STA SSID

：

USR

-

WIFI

232

- A

LAN IP

:

10

.

10

.

99

.

254

WAN IP

:

10

.

10

.

100

.

100

Net Prot

:

Tcp Server

Protocol Port

:

8899

STA SSID

:

USR

-

WIFI

232

- A

WAN IP

:

10

.

10

.

100

.

101

Net Prot

:

Tcp client

10

.

10

.

100

.

100

:

8899

LAN IP

:

10

.

10

.

98

.

254

AP SSID

：

USR

-

WIFI

232

- A

LAN IP

:

10

.

10

.

100

.

254

Net Prot

:

Tcp Server

Protocol Port

:

8899

User

Device

User

Device

Figure 60 Two

Two

Two USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 Modules

Modules

Modules Connection

Connection

Connection Through

Through

Through AP

AP

Q6:

Q6: How

How

How to

to

to avoid

avoid

avoid IP

IP

IP address

address

address confliction

confliction

confliction when

when

when apply

apply

apply USR-WIFI232-D2

USR-WIFI232-D2

module?

The following address allocation method can avoid the IP address confliction for dynamic and

static IP address mixed application.



M odule dynamic

IP

address range from 100 to 200 for last

IP

address segment.

Such as default IP: 10.10.100.254. When module works as

AP,

the IP address module

can allocate to STA is from 10.10.100.100 to 10.10.100.200;



So, if user needs to set static IP for dedicated

STA

internal network, the available IP

address range can start from 10.10.100.1 to 10.10.100.99.

Q7:

Q7: PC

PC

PC works

works

works as

as

as server,

server,

server, all

all

all WIFI

WIFI

WIFI modules

modules

modules works

works

works as

as

as data

data

data acquisition

acquisition

card

card and

and

and connect

connect

connect with

with

with PC,

PC,

PC, how

how

how to

to

to configure

configure

configure this

this

this application?

application?

Network structure as below figure: Three USR-WIFI232-D2 module setup 3 TCP links with PC

server. Module 1# works as AP and all devices connect to module 1# through WiFi interface;

PC Setting:

IP address: 10.10.100.100;

Network Protocal:TCP/Server, Port ID: 8899;

Module 1# Setting:

Works as AP mode;

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 73 of 78 tec@usr.cn

LAN IP address: 10.10.100.254;

Network Protocal:TCP/Client, Port ID: 8899; Application IP address:10.10.100.100;

Module 2# Setting:

Works as STA mode;

WAN connection type: Static IP: 10.10.100.101;

Network Protocal:TCP/Client, Port ID: 8899; Application IP address:10.10.100.100;

LAN IP address: 10.10.99.254 (Different net segment with WAN port);

Module 3# Setting:

Works as STA mode;

WAN connection type: Static IP: 10.10.100.102;

Network Protocal:TCP/Client, Port ID: 8899; Application IP address:10.10.100.100;

LAN IP address: 10.10.98.254 (Different net segment with WAN port);

USR

-

WIFI

232

-

D 2

UART

USR

-

WIFI

232

-

D 2

UART

IP

：

10

.

10

.

100

.

100

Net Prot

：

tcp

server

，

8899

STA SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

99

.

254

WAN IP

：

10

.

10

.

100

.

101

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

STA SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

98

.

254

WAN IP

：

10

.

10

.

100

.

102

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

AP SSID

：

USR

-

WIFI

232

-

AP

_

xxxx

LAN IP

：

10

.

10

.

100

.

254

Net Prot

：

tcp client

，

10

.

10

.

100

.

100

:

8899

User

Device

User

Device

User

Device

USR

-

WIFI

232

-

D 2

Figure 61 Wireless

Wireless

Wireless Data

Data

Data Acquisition

Acquisition

Acquisition Card

Card

Card Setting

Setting

Q8:

Q8: WIFI

WIFI

WIFI module

module

module support

support

support UDP

UDP

UDP multicast?

multicast?

At present, all the WIFI module does not support UDP multicast function,IP multicast address

range is " 224.0.0.0 ~ 239.255.255.255 ” , When setting module, please don't set this IP section, if

set, may cause the module can't normal start.

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 74 of 78 tec@usr.cn

Q9:WIFI

Q9:WIFI module

module

module operates

operates

operates in

in

STA

mode,

mode, the

the

the PC

PC

PC how

how

how to

to

to get

get

get the

the

the IP

IP

module?

All wifi module supports UDP search ,they will return to their respective

IP,

MAC, MID, detailed

search process is as follows:

1. PC via UDP broadcast (broadcast address: xx.xx.xx.255, Port: 48899) sent a password, the

default password is: "HF-A11ASSISTHREAD", the password can be used

AT

commands (AT

+ FASWD) set up,it's Up to 100 bytes.

2. After the module receives a password, if the password is correct, to the address (Unicast,

Port: 48899) sends local IP address and MAC address and name of the module.

(IP,

MAC,

MID as 10.10.100.254,888 B5D0000E2, guxin).

S o you can get to the

IP

address of the module.

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 75 of 78 tec@usr.cn

Appendix

Appendix b:

b:

b: evb

evb

evb reference

reference

reference design

design

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 76 of 78 tec@usr.cn

Appendix

Appendix c

c

c :

:

: external

external

external power

power

power shutdown

shutdown

shutdown mode

mode

reference

reference design

design

Appendix

Appendix c:

c:

c: The

The

The FCC

FCC

FCC statement

statement

FCC

FCC STATEMENT

STATEMENT

1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference received, including interference that may cause

undesired operation.

2. Changes or modifications not expressly approved by the party responsible for compliance

could

void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation.

This equipment generates uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio

communications.

However, there is no guarantee that interference will not occur in a particular installation. If this

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 77 of 78 tec@usr.cn

equipment does cause harmful interference to radio or wifi , which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circui t different from that to which the receiver is

connected.

Consult the dealer for help.

FCC

FCC Radiation

Radiation

Radiation Exposure

Exposure

Exposure Statement

Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with minimum distance 20cm

between the radiator & your body .

USR-WIFI232- D2 User Manual www.usr iot .com

Jinan USR IOT Technology Limited Page 78 of 78 tec@usr.cn

Appendix

Appendix e:

e:

e: Contact

Contact

Contact Information

Information

------------------------------------------------------------------------------------------------------------

Contact

Contact us:

us:

Company: Jinan USR IOT Technology Limited

Address: 1-728, Huizhan Guoji Cheng, Gaoxin Qu, Jinan, Shandong, China

Tel:

86-531-55507297, 86-531-88826739

Web: www.usr iot . com

Email: sales@usr.cn, order@usr.cn

-----------------------------------------------------------------------------------------------------------

Appendix

Appendix f

f

f :

:

: Disclaimer

Disclaimer

This

This document

document

document provides

provides

provides information

information

information about

about

about USR-WIFI232-D2

USR-WIFI232-D2

USR-WIFI232-D2 modules,

modules,

modules, this

this

this document

document

document does

does

not

not grant

grant

grant any

any

any license

license

license to

to

to intellectual

intellectual

intellectual property

property

property rights.

rights.

rights. Except

Except

Except the

the

the responsibility

responsibility

responsibility declared

declared

declared in

in

the

the product

product

product sale

sale

sale clause,

clause,

clause, USR

USR

USR does

does

does not

not

not assume

assume

assume any

any

any other

other

other responsibilities.

responsibilities.

responsibilities. In

In

In addition,

addition,

addition, USR

USR

does

does not

not

not make

make

make any

any

any warranties

warranties

warranties for

for

for the

the

the sale

sale

sale and

and

and use

use

use of

of

of this

this

this product,

product,

product, including

including

including the

the

the suitability

suitability

of

of the

the

the product

product

product for

for

for a

a

a particular

particular

particular purpose,

purpose,

purpose, merchantability

merchantability

merchantability or

or

or fitness

fitness

fitness for

for

for any

any

any patent,

patent,

patent, copyright

copyright

or

or other

other

other intellectual

intellectual

intellectual property

property

property infringement,

infringement,

infringement, etc.

etc.

etc. USR

USR

USR may

may

may make

make

make changes

changes

changes to

to

to specifications

specifications

and

and product

product

product descriptions

descriptions

descriptions without

without

without notice.

notice.

Appendix

Appendix g

g

g :

:

: History

History

Ed.V 1.0.0 Created on 7 -

11

-201 4 .

END

END OF

OF

OF DOCUMENT

DOCUMENT

Jinan USR IOT Technology WIFI232D2A Embedded WiFi Module User Manual GPON SFU System Design

Jinan USR IOT Technology Limited Embedded WiFi Module GPON SFU System Design

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