High Flying Electronics Technology HF-LPB Embedded WIFI module User Manual AZY HF LPB Rev1

High-Flying Electronics Technology Co.,Ltd Embedded WIFI module AZY HF LPB Rev1

AZY-HF-LPB_User Manual Rev1

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HF-LPB Low Power WiFi Module User Manual
HF-LPB
Low Power WiFi Module User Maunal
V 1.1
Copyright
Hi-flying is a registered trademark of Hi-flying Incorporated. Copyright ©
2012 Hi-flying Incorporated. All rights reserved. No part of this publication
may be reproduced or distributed in any form or by any means, or stored
in a database or retrieval system, without the prior written permission of
the publisher. Hi-flying Incorporated reserves the right to make changes in
technical and product specifications without provisional notification. This
module is limited to OEM installation only and must not be sold to endusers. OEM integrators must be instructed to ensure that the end-user has
no manual instructions to remove or install the device. The end-user can
not remove or install this module to any other devices.
Changes or modifications not expressly approved by the manufacturer
could void the user’s authority to operate the equipment.
If the FCC ID of the module cannot be seen when it is installed, then the
host label must include the text: Contains FCC ID: AZY-HF-LPB
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HF-LPB Low Power WiFi Module User Manual
Overview of Characteristic
—
Support IEEE802.11b/g/n Wireless Standards
—
Fully Self-Contained Serial-to-Wireless Functionality
—
Ultra-Low-Power for Battery Applications with Excellent Power Save Scheme
—
Support UART/SPI/USB/PWM/GPIO Data Communication Interface
—
Support Work As STA/AP/AP+STA Mode
—
Support Wi-Fi Direct
—
Support WPS Function
—
Support Wireless and Remote Firmware Upgrade Function
—
Support User-Defined Web Page Upload
—
Single +3.3V Power Supply
—
Smallest Size: 23mm x 32.5mm x2.7mm
—
FCC/CE Certificated
TABLE OF CONTENTS
LIST OF FIGURES ...................................................................................................................................6
LIST OF TABLES ....................................................................................................................................7
HISTORY ..................................................................................................................................................7
1.
PRODUCT OVERVIEW ................................................................................................................8
1.1.
General Description .................................................................................................................8
1.1.1
Device Features ..................................................................................................................8
1.1.2
Device Paremeters .............................................................................................................9
1.1.3
Key Application ...................................................................................................................9
1.2.
Hardware Introduction ..........................................................................................................10
1.2.1.
Pins Definition ...................................................................................................................10
1.2.2.
Electrical Characteristics ..................................................................................................12
1.2.3.
Mechanical Size................................................................................................................12
1.2.4.
On-board Chip Antenna ....................................................................................................13
1.2.5.
Evaluation Kit ....................................................................................................................14
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HF-LPB Low Power WiFi Module User Manual
1.2.6.
1.3.
Order Information..............................................................................................................15
Typical Application ................................................................................................................16
1.3.1.
2.
FUNCTIONAL DESCRIPTION ..................................................................................................18
2.1.
Wireless Networking .............................................................................................................18
2.1.1.
Basic Wireless Network Based On AP (Infrastructure) ....................................................18
2.1.2.
Wireless Network Based On AP+STA..............................................................................18
2.1.3.
Wi-Fi Direct Network .........................................................................................................19
2.2.
Work Mode : Transparent Transmission Mode ..................................................................20
2.3.
UART Frame Scheme ............................................................................................................21
2.3.1.
UART Free-Frame ............................................................................................................21
2.3.2.
UART Auto-Frame ............................................................................................................21
2.4.
Encryption ..............................................................................................................................22
2.5.
Network Protocal ...................................................................................................................22
2.6.
Multi-TCP Link Connection ...................................................................................................23
2.7.
Power Save Scheme ..............................................................................................................23
2.8.
Parameters Configuration .....................................................................................................25
2.9.
Firmware Update ....................................................................................................................25
2.10.
3.
Hardware Typical Application ...........................................................................................16
GPIO Function ....................................................................................................................25
OPERATION GUIDELINE ..........................................................................................................27
3.1.
Configuration via Web Accessing ........................................................................................27
3.1.1.
Open Web Management Interface ...................................................................................27
3.1.2.
System Page.....................................................................................................................27
3.1.3.
Work Mode Page ..............................................................................................................28
3.1.4.
STA Setting Page .............................................................................................................28
3.1.5.
AP Setting Page ...............................................................................................................29
3.1.6.
Other Setting Page ...........................................................................................................29
3.1.7.
Account Management Page .............................................................................................30
3.1.8.
Upgrade Software Page ...................................................................................................30
3.1.9.
Restart Page .....................................................................................................................31
3.1.10.
3.2.
HF-LPB Usage Introduction ..................................................................................................32
3.2.1.
Software Debug Tools ......................................................................................................32
3.2.2.
Network Connection .........................................................................................................32
3.2.3.
Default Parameter Setting ................................................................................................33
3.2.4.
Module Debug ..................................................................................................................33
3.3.
4.
Restore Page ................................................................................................................31
Typical Application Examples ..............................................................................................34
3.3.1.
Wireless Control Application .............................................................................................34
3.3.2.
Remote Management Application ....................................................................................35
3.3.3.
Transparent Serial Port Application ..................................................................................35
AT+INSTRUCTION INTRODUCTION ......................................................................................36
4.1.
Configuration Mode ...............................................................................................................36
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HF-LPB Low Power WiFi Module User Manual
4.1.1.
4.2.
Switch to Configuration Mode ...........................................................................................36
AT+ Instruction Set Overview ...............................................................................................37
4.2.1.
Instruction Syntax Format .................................................................................................37
4.2.2.
AT+ Instruction Set ...........................................................................................................38
4.2.2.1.
AT+E .............................................................................................................................39
4.2.2.2.
AT+WMODE .................................................................................................................40
4.2.2.3.
AT+ENTM .....................................................................................................................40
4.2.2.4.
AT+TMODE...................................................................................................................40
4.2.2.5.
AT+MID .........................................................................................................................40
4.2.2.6.
AT+VER ........................................................................................................................41
4.2.2.7.
AT+RELD ......................................................................................................................41
4.2.2.8.
AT+Z .............................................................................................................................41
4.2.2.9.
AT+H .............................................................................................................................41
4.2.2.10.
AT+UART ..................................................................................................................41
4.2.2.11.
AT+ UARTF ...............................................................................................................42
4.2.2.12.
AT+ UARTFT .............................................................................................................42
4.2.2.13.
AT+ UARTFL .............................................................................................................43
4.2.2.14.
AT+ UARTTE.............................................................................................................43
4.2.2.15.
AT+ SEND .................................................................................................................43
4.2.2.16.
AT+ RECV .................................................................................................................43
4.2.2.17.
AT+ PING ..................................................................................................................44
4.2.2.18.
AT+NETP ..................................................................................................................44
4.2.2.19.
AT+ TCPLK ...............................................................................................................44
4.2.2.20.
AT+ TCPTO ...............................................................................................................45
4.2.2.21.
AT+TCPDIS ...............................................................................................................45
4.2.2.22.
AT+WSSSID ..............................................................................................................45
4.2.2.23.
AT+WSKEY ...............................................................................................................46
4.2.2.24.
AT+ WANN ................................................................................................................46
4.2.2.25.
AT+ WSMAC .............................................................................................................46
4.2.2.26.
AT+ WSLK .................................................................................................................47
4.2.2.27.
AT+ WSLQ ................................................................................................................47
4.2.2.28.
AT+WSCAN...............................................................................................................47
4.2.2.29.
AT+ LANN .................................................................................................................47
4.2.2.30.
AT+WAP ....................................................................................................................48
4.2.2.31.
AT+WAKEY ...............................................................................................................48
4.2.2.32.
AT+WAMAC ..............................................................................................................49
4.2.2.33.
AT+WADHCP ............................................................................................................49
4.2.2.34.
AT+WEBSWITCH .....................................................................................................49
4.2.2.35.
AT+PSPAR ................................................................................................................49
4.2.2.36.
AT+MSLP ..................................................................................................................50
4.2.2.37.
AT+MSOPT ...............................................................................................................50
4.2.2.38.
AT+TSPAR ................................................................................................................51
4.2.2.39.
AT+WRMID ...............................................................................................................51
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HF-LPB Low Power WiFi Module User Manual
4.2.2.40.
5.
AT+ASWD .................................................................................................................51
PACKAGE INFORMATION ........................................................................................................52
5.1.
Recommended Reflow Profile ..............................................................................................52
5.2.
Device Handling Instruction (Module IC SMT Preparation) ...............................................52
5.3.
Shipping Information .............................................................................................................53
APPENDIX A: HW REFERENCE DESIGN ......................................................................................54
APPENDIX B: CONTACT INFORMATION ......................................................................................55
1 STANDARDS AND REGULATORY COMPLIANCE .........................................................................56
1.2
Standards and certification...................................................................................................56
1.3
FCC certification requirements. ...........................................................................................56
1.4
FCC RF exposure requirements ...........................................................................................58
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HF-LPB Low Power WiFi Module User Manual
LIST OF FIGURES
Figure 1.
HF-LPB Demo ..................................................................................................................10
Figure 2.
HF-LPB Pins Map .............................................................................................................10
Figure 3.
HF-LPB Mechanical Dimension ........................................................................................13
Figure 4.
HF-LPB PCB Symbol Size................................................................................................13
Figure 5.
Suggested Module Placement Region .............................................................................13
Figure 6.
HF-LPB Evaluation Kit ......................................................................................................14
Figure 7.
HF-LPB Order Information ................................................................................................15
Figure 8.
HF-LPB Hardware Typical Application .............................................................................16
Figure 9.
HF-LPB Basic Wireless Network Structure ......................................................................18
Figure 10.
HF-A11 AP+STA Network Structure ................................................................................19
Figure 11.
HF-LPB 1:1 P2P Networking ...........................................................................................19
Figure 12.
HF-LPB 1:N P2P Networking ..........................................................................................20
Figure 13.
HF-LPB Concurrent Operation Networking ......................................................................20
Figure 14.
Multi-TCP Link Data Transmition Structure ......................................................................23
Figure 15.
Open Web Management page .........................................................................................27
Figure 16.
System Web Page ............................................................................................................28
Figure 17.
Work Mode Page ..............................................................................................................28
Figure 18.
STA Setting Page .............................................................................................................29
Figure 19.
AP Setting Page ...............................................................................................................29
Figure 20.
Other Setting Page ...........................................................................................................30
Figure 21.
Account Page ...................................................................................................................30
Figure 22.
Upgrade SW page ............................................................................................................31
Figure 23.
Restart Page .....................................................................................................................31
Figure 24.
Restore Page ....................................................................................................................32
Figure 25.
STA Interface Debug Connection .....................................................................................32
Figure 26.
AP Interface Debug Connection .......................................................................................33
Figure 27.
“CommTools” Serial Debug Tools ....................................................................................33
Figure 28.
“TCPUDPDbg” Tools Create Connection .........................................................................33
Figure 29.
“TCPUDPDbg” Tools Setting ............................................................................................34
Figure 30.
“TCPUDPDbg” Tools Connection .....................................................................................34
Figure 31.
Wireless Control Application .............................................................................................34
Figure 32.
Remote Management Application ....................................................................................35
Figure 33.
Transparent Serial Port Application ..................................................................................35
Figure 34.
HF-LPB Default UART Port Parameters ..........................................................................36
Figure 35.
Switch to Configuration Mode ...........................................................................................36
Figure 36.
”AT+H” Instruction for Help ...............................................................................................37
Figure 37.
Reflow Soldering Profile ...................................................................................................52
Figure 38.
Shipping Information .........................................................................................................53
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HF-LPB Low Power WiFi Module User Manual
LIST OF TABLES
Table 1
HF-LPB Module Technical Specifications ...............................................................................9
Table 2
HF-LPB Pins Definition ..........................................................................................................10
Table 4
HF-LPB Evaluation Kit Interface Description ........................................................................15
Table 5
HF-LPB IP Stack Features ....................................................................................................22
Table 6
Difference Between Deelp Sleep And Standby Mode ..........................................................24
Table 7
Power Consumption with Different Power Save Mode .........................................................24
Table 8
HF-LPB GPIO Pin Mapping Table ........................................................................................25
Table 9
HF-LPB Web Access Default Setting ....................................................................................27
Table 10
Error Code Describtion ........................................................................................................38
Table 11
AT+ Instruction Set List .......................................................................................................38
Table 12 Reflow Soldering Parameter .................................................................................................52
HISTORY
Ed. V1.0 Created on 1-29-2013.
Ed. V1.1 02-24-2013. Update AT command contents.
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HF-LPB Low Power WiFi Module User Manual
1. PRODUCT OVERVIEW
1.1. General Description
The HF-LPB is a fully self-contained small form-factor, single stream, 802.11b/g/n Wi-Fi module,
which provide a wireless interface to any equipment with a Serial/SPI/USB interface for data
transfer.HF-LPB integrate MAC, baseband processor, RF transceiver with power amplifier in hardware
and all Wi-Fi protocol and configuration functionality and networking stack, in embedded firmware to
make a fully self-contained 802.11b/g/n Wi-Fi solution for a variety of applications.
HF-LPB support AP+STA wireless networking and support Wi-Fi Direct. HF-LPB also provides
wireless and remote firmware upgrade, which satisfied all kinds of application requirement. HF-LPB
support user defined Web page and can revise the data communication protocol, which reduce much
customer’s software development and customization work.
The HF-LPB employs the world's lowest power consumption embedded architecture. It has been
optimized for all kinds of client applications in the home automation, smart grid, handheld device,
personal medical application and industrial control that have lower data rates, and transmit or receive
data on an infrequent basis.
The HF-LPB integrates all Wi-Fi functionality into a low-profile, 23x32.5x 2.7mm SMT module package
that can be easily mounted on main PCB with application specific circuits.
1.1.1 Device Features
Single stream Wi-Fi @ 2.4 GHz with support for WEP security mode as well as WPA/WPA2
Fully self-contained serial-to-wireless functionality.
Ultra-low-power operation with all kinds of power-save modes.
Includes all the protocol and configuration functions for Wi-Fi connectivity.
Support STA/AP/AP+STA Mode
Support Wi-Fi Direct Mode
Support WPS
Support Wireless and Remote Firmware Upgrade Function
Support User-Defined Web Page Upload
Integrated chip antenna options.
Compact surface mount module 23mm x 32.5mm x 2.7mm.
Full IPv4 and IPv6 stack.
Low power RTOS and drivers.
FCC Certified.
RoHS and CE compliant.
Single supply – 3.3V operation.
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HF-LPB Low Power WiFi Module User Manual
1.1.2 Device Paremeters
Table 1
Class
Wireless
Parameter
HF-LPB Module Technical Specifications
Item
Parameters
Certification
Wireless standard
US Frequency range
EU Frequency range
FCC/CE
802.11 b/g/n
2.412GHz-2.462GHz
2.412GHz-2.472GHz
802.11b: +18dBm (Max.)
802.11g: +14dBm (Max.)
802.11n: +11dBm (Max.)
Configurable
802.11b: -93 dBm (@11Mbps ,CCK)
802.11g: -85 dBm (@54Mbps, OFDM)
802.11n: -82 dBm (@HT20, MCS7)
Internal:On-board PCB antenna
UART
USB, SPI, PWM…
Others: GPIO, ADC/DAC, RTC…
3.1~3.6V
Peak [Continuous TX]: ~200mA
Normal [WiFi ON/OFF, DTIM=100ms]:
Average. ~5mA, Peak: 200mA
Deep Sleep: [WiFi OFF]: ~2mA
Standby [WiFi Shutdown]: <2uA
-40℃- 85℃
-45℃- 125℃
23mm×32.5mm×2.7mm
STA /AP/STA+AP/Wi-Fi Direct
Transmit Power
Receiver Sensitivity
Antenna Option
Data Interface
Operating Voltage
Hardware
Parameter
Software
Parameter
Operating Current
Operating Temp.
Storage Temp.
Dimensions and Size
Network Type
Security
Mechanisms
Encryption
Update Firmware
Customization
Serial command
Network Protocol
User Configuration
WEP/WPA-PSK/WPA2-PSK/WPS
WEP64/WEP128/TKIP/AES
Local Wireless, Remote
Web Page Upgrade
Support SDK for application develop
AT+instruction set
IPv4, IPv6,TCP/UDP/FTP/HTTP
AT+instruction set. Android/ iOS
1.1.3 Key Application
Remote equipment monitoring
Asset tracking and telemetry
Security
Industrial sensors and controls
Home automation
Medical devices
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HF-LPB Low Power WiFi Module User Manual
1.2. Hardware Introduction
Figure 1.
1.2.1.
HF-LPB Demo
Pins Definition
Figure 2.
Table 2
HF-LPB Pins Map
HF-LPB Pins Definition
Pin
Describtion
Net Name
1,17,32,48
Ground
JTAG Function
JTAG Function
JTAG Function
JTAG Function
GND
JTAG_TCK
JTAG_TDO
JTAG_TDI
JTAG_TMS
Signal
Type
Power
I, PU
I,PU
I,PU
Comments
JTAG/Debug functional pin,
No connect if not use.
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HF-LPB Low Power WiFi Module User Manual
10
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
33
34
35
36
37
38
39
40
41
42
43
RTC Input 1
RTC Output 1
+3.3V Power
A/D Input 1
A/D Input 2
RTC Input 2
USB 5V Detect
GPIO
USB Interface
USB Interface
PWM Output0+
PWM Output0GPIO
SPI Interface
SPI Interface
SPI Interface
SPI Interface
+3.3V Power
+3.3 Power
GPIO
UART0
UART0
UART0
UART0
Wi-Fi Status
N.C
ALARM1
RTC_OUT1
DVDD
N.C
ADC1
ADC2
ALARM2
N.C
N.C
USB_PIO
N.C
N.C
GPIO20
USBUSB+
PWMH0
PWML0
N.C
GPIO26
SPI_MISO
SPI_CLK
SPI_CS
SPI_MOSI
DVDD
N.C
DVDD
GPIO35
N.C
N.C
N.C
UART0_TX
UART0_RTS
UART0_RX
UART0_CTS
nLink
O, PD
I/O,PD
I,PD
I/O, PD
O,PU
I.PD
Power
I/O,PD
I/O,PD
I,PD
I/O
I/O,PD
I/O
I/O
I/O,PD
I/O, PU
I/O, PU
I/O,PU
I/O.PD
Power
Power
I/O,PD
Module Boot Up
Indicator
nReady
O,PU
45
Restore
Configuration
nReload
I,PU
PWM Fault Input0
PWMFI0
Module Reset
EXT_RESETn
No connect
GPIO11, No connect if not use.
GPIO12, No connect if not use.
GPIO13, No connect if not use.
No connect
No connect
GPIO16, No connect if not use.
No connect
No connect
GPIO20, No connect if not use.
90 ohm Diff. Line
90 ohm Diff. Line
GPIO23, No connect if not use.
GPIO24, No connect if not use.
No connect
GPIO26, No connect if not use.
No connect if not use.
No connect if not use.
No connect if not use.
No connect if not use.
No connect
44
46
47
No connect
GPIO7, Sleep_RQ Pin
GPIO8, Sleep_ON Pin
I,PU
GPIO35, WPS functional pin
No connect
No connect
No connect
UART Communication Pin
UART Communication Pin
UART Communication Pin
UART Communication Pin
“0”- Wi-Fi Linked
“1”- No WIFI Linked
No connect if not use.
“0” – Boot-up OK;
“1” – Boot-up No OK;
No connect if not use.;
Module will restore factory
default after set this pin “0” more
than 1s, then set “1”.
No connect if not use;
GPIO46, No connect if not use.
“Low” effective reset input.
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HF-LPB Low Power WiFi Module User Manual
1.2.2.
Electrical Characteristics
Absolute Maximum Ratings:
Parameter
Condition
Max.
Unit
-45
125
°C
260
°C
Supply voltage
3.8
Voltage on any I/O pin
3.3
Storage temperature range
Maximum soldering temperature
Min.
Typ.
IPC/JEDEC J-STD-020
ESD (Human Body Model HBM)
TAMB=25°C
KV
ESD (Charged Device Model, CDM)
TAMB=25°C
KV
Typ.
Max.
Unit
3.3
3.8
Power Supply & Power Consumption:
Parameter
Condition
Operating Supply voltage
Min.
3.1
Supply current, peak
Continuous Tx
200
mA
Supply current, IEEE PS
DTIM=100ms
mA
Output high voltage
Sourcing 6mA
Output low voltage
Sinking 6mA
Input high voltage
2.8
0.2
2.2
Input low voltage
0.8
Input leakage current
+/-25
nA
Analog input range
Analog output range
1.2.3.
Mechanical Size
HF-LPB modules physical size （Unit: mm） as follows:
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HF-LPB Low Power WiFi Module User Manual
Figure 3.
HF-LPB Mechanical Dimension
HF-LPB Module PCB symbol size (mm) as follows:
Figure 4.
1.2.4.
HF-LPB PCB Symbol Size
On-board Chip Antenna
HF-LPB module support internal on-board chip antenna option. When customer select internal
antenna, you shall comply with following antenna design rules and module location suggestions:
¾
For customer PCB, RED color region (8.3x18.4mm) can’t put componet or paste GND net;
¾
Antenna must away from metal or high components at least 10mm;
¾
Antenna can’t be shieldedby any meal enclosure; All cover, include plastic, shall away from
antenna at least 10mm;
Figure 5.
Suggested Module Placement Region
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HF-LPB Low Power WiFi Module User Manual
High-Flying suggest HF-LPB module better locate in following region at customer board, which to
reduce the effect to antenna and wireless signal, and better consult High-Flying technical people when
you structure your module placement and PCB layout.
1.2.5.
Evaluation Kit
High-Flying 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 HF-LPB module with the RS-232
UART, RS485, USB (Internal UART-USB convetor) or Wireless port to configure the parameters,
manage the module or do the some functional tests.
Figure 6.
HF-LPB Evaluation Kit
Notes: User need download USB - UART port driver from High-Flying web or contact with technical
support people for more detail.
The external interface description for evaluation kit as follows:
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HF-LPB Low Power WiFi Module User Manual
Table 4
Function
External
Interface
LED
Button
Name
Description
COM1
Main data/command RS-232 interface
RS485
Main data/command RS-485 interface
JTAG
JTAG data debug interface (Not for user use)
USB2TTL
UART to USB debug interface. (For PC without
RS232, need load driver). Can be Power input.
USB DEBUG
USB2.0 data interface.
DC Jack
DC jack for power in, 5~18V input.
DC5-18V
DC jack for power in, 5~18V input.
BAT
2 Li-Battery Power Supply.
EXT PORT
HF-LPB GPIO function extend interface connector
JMP1,JMP2
JMP3
JMP6
Power
nLink
nReady
Sleep_ON
nReset
Reserved, No Jumper required.
4Pin USB or RS232 Jumper. Left jump select USB.
3Pin RS485 Jumper. No jump selects RS232.
3.3V Power Indicator
nLink -WiFi LINK Indicator
nReady – Module Bootup Ready Indicator
Sleep_ON-Module asleep or awake Indicator
Used to reset the module.
Restore factory default configuration after push this
pin more than 3s.
WPS Button
Pin Sleep Control button, more than 1s to put
module in standby mode.
nReload
WPS
Sleep_RQ
1.2.6.
HF-LPB Evaluation Kit Interface Description
Order Information
Base on customer detailed requirement, HF-LPB series modules provide different variants and
physical type for detailed application.
Figure 7.
HF-LPB Order Information
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HF-LPB Low Power WiFi Module User Manual
1.3. Typical Application
1.3.1.
Hardware Typical Application
Figure 8.
HF-LPB Hardware Typical Application
Notes：
nReset- Module hardware reset signal. Input. Logics “0” effective.
There is pull-up resister internal and no external pull-up required. When module power up or some
issue happened, MCU need assert nRST signal “0” at least 10ms, then set” 1” to keep module fully
reset.
nLink- Module WIFI connection status indication. Output.
When module connects to AP (AP associated), this pin will output “0”. This signal used to judge if
module already at WiFi connection status. Thers is pull-up resister internal and no external pull-up
required. If n Link function not required, can leave this pin open.
nReady- Module boot up ready signal. Output. Logics “0” effective.
The module will output “0” after normal boot up. This signal used to judge if module finish boot up and
ready for application or working at normal mode. If nReady function not required, can leave this pin
open.
WPS – module auto-negotiation with AP and acquire password and build link
User can de-asser this pin low ”0”, after 500ms, then asser this pin high “1” to enable the auto
negotiation.if AP also push its WPS button, then Module and AP will start auto-negotiation and
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HF-LPB Low Power WiFi Module User Manual
module acquire password and build link. Next time, module will link with same AP without autonegotiation required. User can use “AT+WSSSID” and “AT+WSKEY” command to query SSID and
password.
nReload- Module restore to factory default configuration.Input. Logics “0” effective.
User can de-assert nReload signal “0” more than 3s through button or MCU pin, then release, module
will restore to factory default configuration and re-start boot up process. Thers is pull-up resister
internal and no external pull-up required. If nReload function not required, can leave this pin open.
Sleep-RQ- Module Pin Sleep Control. Input.
The user should de-assert this pin low “0”, after 1’s assert to high ”1” to put the module to sleep status.
Also at the deep sleep/standby mode, user can de-assert this pin low “0”, after 1’s assert to high ”1”
to put the module to wake up the module. If user doesn't use pin sleep function, can leave this pin
open.
Sleep-ON- Module Pin Sleep Indicator. Output.
This pin is used to indicate that the module is asleep (Module output “0”) or awake (Module output “1”)
status. If user doesn't use pin sleep function, can leave this pin open.
UART0_TXD/RXD- UART port data transmit and receive signal.
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HF-LPB Low Power WiFi Module User Manual
2. FUNCTIONAL DESCRIPTION
2.1. Wireless Networking
HF-LPB module can be configured as both wireless STA and AP base on network type. Logically
there are two interfaces in HF-LPB. One is for STA, and another is for AP. When HF-LPB works as AP,
other STA equipments are able to connect to wireless LAN via HF-LPB module. Wireless Networking
with HF-LPB is very flexible.
Notes:
AP: that is the wireless Access Point, the founder of a wireless network and the centre of the network
nodes. The wireless router we use at home or in office may be an AP.
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.
2.1.1.
Basic Wireless Network Based On AP (Infrastructure)
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 centre, and all communication between STAs
is transmitted through the AP. The figure following shows such type of networking.
Figure 9.
2.1.2.
HF-LPB Basic Wireless Network Structure
Wireless Network Based On AP+STA
HF-LPB 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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HF-LPB Low Power WiFi Module User Manual
Figure 10. HF-A11 AP+STA Network 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:
¾
Users can easily setting and track user device through Phone/PAD and not change the
orginal network setting.
¾
Users can easily setting module’s parameters through WiFi when module works as STA
mode.
2.1.3.
Wi-Fi Direct Network
Wi-Fi Direct standard permits the wireless connection without AP router. Like blue tooth, this standard
use point to point interconnection and all devices connect each other and transmit data withour router.
HF-LPB module support following Wi-Fi Direct networking:
¾
1:1 P2P Networking;
¾
1:N P2P Networking;
¾
Concurrent Operation Networking;
Figure 11. HF-LPB 1:1 P2P Networking
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HF-LPB Low Power WiFi Module User Manual
Figure 12. HF-LPB 1:N P2P Networking
Figure 13. HF-LPB Concurrent Operation Networking
2.2. Work Mode : Transparent Transmission Mode
HF-LPB module 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.
The parameters which need to configure include:
¾
Wireless Network Parameters
„
Wireless Network Name（SSID）
„
Security Mode
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HF-LPB Low Power WiFi Module User Manual
„
¾
¾
Encryption Key
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
2.3. UART Frame Scheme
2.3.1.
UART Free-Frame
HF-LPB support UART free-frame function. If user select open this function, module will check the
intervals between any two bytes when reciving UART data. If this interval time exceeds defined value
(50ms default), HF-LPB will think it as the end of one frame and transfer this free-frame to WiFi port,
or HF-LPB will receive UART data untill 1400 bytes, then transfer 1400 bytes frame to WiFi port.
HF-LPB’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.
Through AT command: AT+UARTTE=fash/normal, user can set the interval time: fast (10ms) and
normal (50ms).
2.3.2.
UART Auto-Frame
HF-LPB 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.
¾
Auto-frame trigger length: The fixed data length that module used to transmitting to the
network.
¾
Auto-frame trigger time: After the trigger time, if UART port received data can’t reach autoframe 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.
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HF-LPB Low Power WiFi Module User Manual
2.4. Encryption
Encryption is a method of scrambling a message that makes it unreadable to unwanted parties,
adding a degree of secure communications. There are different protocols for providing encryption, and
the HF-LPB module supports following:
‹
WEP
‹
WPA-PSK/TKIP
‹
WPA-PSK/AES
‹
WPA2-PSK/TKIP
‹
WPA2-PSK/AES
2.5. Network Protocal
HF-LPB includes a fully IPv4 and IPv6 capable stack supporting TCP and UDP connection.Following
table shows the key features of the HF-LPB module IP stack, which including support for DHCP,
multicast, and ARP.
The Frame size limits are (including IP headers):
Tranmit
TCP/UDP/ICMP (v4): 1576
ICMP (v6): 1576
UCP/UDP (v6): 1220
Receive
TCP/UDP (v4): 1516
TCP/UDP (v6): 1496
ICMPv4 and ICMPv6: 5000
Table 5
HF-LPB IP Stack Features
Feature
Support
ARP
Supported
Forwarding
Supported
Fragmentation/Reassembly
Planned
IPv4/v6 Header Processing
Supported
UDP/TCP Socket Support
DHCP v4
Supported
Supported
Neighbor Discovery
Supported
Broadcast/Multicast
Path MTU Discovery
Supported
Supported
Address Auto-Configuration
Supported
Multicast
Planned
TCP Zero Copy Feature
Supported
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HF-LPB Low Power WiFi Module User Manual
2.6. Multi-TCP Link Connection
When HF-LPB module configured as TCP Server, it supports Multi-TCP link connection, and
maximum eight TCP clients permit to connect to HF-LPB module. User can realize multi-TCP link
connection at each work mode.
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:
Figure 14. Multi-TCP Link Data Transmition Structure
2.7. Power Save Scheme
HF-LPB module can work at three modes based on different power save scheme:
„
Normal (Active/Sleep) Mode - AP Associated, WiFi ON/OFF based on internal control
„
Deep Sleep Mode - Non AP Associated, WiFi OFF
„
Standby Mode - Non AP Associated, WiFi Shut dwon
Normal (Active/Sleep) Mode Normal mode support two work option: One is no DTIM related (Default
mode), module will monitor the interval to Active/Sleep. The other is DTIM related mode, whcih allows
the module to sync up with beacons sent from the AP which contains the DTIM (Delivery Traffic
Indication Message). The DTIM indicates when broadcast and multicast data will be sent on the
network. This property is configured on the AP (Default value is 1, which means DTIM= 100ms) and is
typically configured as the number of beacons between each beacon with DTIM.
Deep Sleep/Standby Mode allows the WiFi circuitry to be “OFF” status or powered down, which
results in the lower/lowest sleep current, but at the expense of longer wake up times. This is due to
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HF-LPB Low Power WiFi Module User Manual
the module associating with the access point every time when it wakes up. The intent of this option is
to allow for longer sleep times.
The Difference between deelp sleep and standby mode as follows:
Table 6
Difference Between Deelp Sleep And Standby Mode
Status
Deep Sleep
Wake Up Method
Wi-Fi
MCU
Current
UART
GPIO
Timeout
AT Commond
OFF
ON
~2mA
ON
Yes
Yes
Yes
Standby
OFF
OFF <2uA
OFF
Yes
Yes
Notes: For GPIO wake up, if trigger time <1s, then only wake up MCU.
No
Following typical measurement parameters can be used for select suitable power save scheme based
on the real application case:
Table 7
Power Consumption with Different Power Save Mode
WiFi Mode
Condition
Average Current
Peak Current
Standby
WiFi Shutdown
~2uA
< 10uA
Deep Sleep
WiFi OFF
~2mA
< 10mA
Normal
(Active/Sleep)
Normal
(Active/Sleep)
Normal
(Active/Sleep)
WiFi ON - AP Connected
DTIM = 100ms
WiFi ON – AP Connected
DTIM = 500ms
WiFi ON – AP Connected
DTIM = 1000ms
5.5~7mA
< 220mA
3.5mA
< 220mA
2.8mA
< 220mA
In addition, for deep sleep/standby mode, module provides three wakes up options, user can select
one or whole as the module wake up option. Refer to AT Instruction (Power Management Instruction
Set) for more detailed setting.
„
Pin Wake Up
„
UART Wake Up
„
Timeout Wake Up
Pin Wake Up Option allows an external microcontroller to determine when HF-LPB should sleep and
when it should wake by controlling the “Sleep_RQ” and “Sleep_ON” pin. at the deep sleep/standby
mode, user can de-assert this pin low “0”, after 1’s assert to high ”1” to put the module to wake up the
module. If user doesn't use pin sleep function, can leave this pin open.
UART Wake Up Option. HF-LPB can use AT command to put module into normal/sleep mode. When
module works at deep sleep or standby mode, user can use ”AT+MSLP =normal” to wake up module.
Timeout Wake Up Option allows the sleep timeout period to be configured through the use of AT
Instruction.In this option, the module will exit sleep based on the  AT Instruction parameters
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HF-LPB Low Power WiFi Module User Manual
2.8. Parameters Configuration
HF-LPB module supports two methods to configuration parameters: Web Accessing and
AT+instruction set.
Web accessing means users can configure parameters through Web browser. When HF-LPB 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 parameters through serial interface command.
Refer to “AT+instruction set” chapter for more detail.
2.9. Firmware Update
HF-LPB module supports two on-line upgrade methods:
„
Webpage Wi-Fi Upgrade
„
Remote Upgrade
Webpaged based Wi-Fiupgrade,please refer to 3.1.8 firmware upgrade page , user can upload
firmware file from PC to HF-LPB.
Remote upgrade: TBD
Notes: please contact with high-flying technical people before upgrade firmware, or maybe damage
the module and can’t work again.
2.10. GPIO Function
HF-LPB module can provide maximum 12 GPIO pins, which include 2 A/D analog input pins, 3 PWM
control pins, 2 Pin sleep control pins, 1 WPS pin, 1 RTC pin, 1 USB 5V control pin, and 2 general
GPIO pin. All these pins can be customized as GPIO pins if these functions are not required. As GPIO
functional pin, user devices can read/write GPIO pins status through AT+instruction set.
Table 8
HF-LPB GPIO Pin Mapping Table
GPIO
GPIO7
GPIO8
GPIO11
GPIO12
GPIO13
GPIO16
GPIO20
GPIO23
GPIO24
GPIO26
Configured Function
Sleep_RQ
Sleep_ON
A/D Input 1
A/D Input 2
RTC Input 2
USB 5V Track
GPIO
PWM Dif. Out+
PWM Dif. OutGPIO
GPIO35
GPIO46
WPS Input
PWM Fault Input
Describtion
Wakeup/Sleep
A/D
RTC
USB
GPIO
PWM
GPIO
WPS
PWM
Default Setting
Sleep_RQ
Sleep_ON
GPIO11
GPIO12
GPIO13
GPIO16
GPIO20
GPIO23
GPIO24
GPIO26
GPIO35
GPIO46
Type
I,PD
I/O,PD
I/O,PD
I,PD
I/O
I/O
I/O
I/O,PD
I/O
When module works at GPIO mode, PC and other equipts can setup connection (TCP/UDP) through
WiFi, then read/write GPIO information through command.
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HF-LPB Low Power WiFi Module User Manual
¾
GPIO n IN,
¾
GPIO n OUT 0, Set GPIOn as output and output ‘0’, Response GPIO OK or GPIO NOK;
¾
GPIO n OUT 1, Set GPIOn as output and output ‘1’, Response GPIO OK or GPIO NOK;
¾
GPIO n SW,
Set GPIOn as input, Response GPIO OK or GPIO NOK;
Set GPIOn as output and switch the output status, Response GPIO OK or
GPIO NOK;
¾
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;
¾
GPIO n GET, Read GPIOn status, Response I0,I1,O0,O1, means”input low”,”input
high”,”output low”,”output high”
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HF-LPB Low Power WiFi Module User Manual
3. OPERATION GUIDELINE
3.1. Configuration via Web Accessing
When first use HF-LPB modules, user may need some configuration. User can connect to HF-LPB
module’s wireless interface with following default setting information and configure the module through
laptop.
Table 9
HF-LPB Web Access Default Setting
Parameters
SSID
Default Setting
HF-LPB
IP Address
10.10.100.254
Subnet Mask
255.255.255.0
User Name
Admin
Admin
Password
3.1.1.
Open Web Management Interface
Step 1: Connect laptop to SSID “HF-LPB” of HF-LPB module via wireless LAN card;
Step 2: After wireless connection OK. Open Wen browser and access “http://10.10.100.254”;
Step 3: Then input user name and password in the page as following and click “OK” button.
Figure 15. Open Web Management page
The HF-LPB 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: “System”, “Work Mode”, “STA Setting”, “AP Setting”, “Other
Setting”, “Account”, “Upgrade SW”, “Restart”, “Restore”.
3.1.2.
System Page
At this page, user can check current device’s important information and status such as: device ID
(MID), software version, wireless work mode and related Wi-Fi parameters.
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HF-LPB Low Power WiFi Module User Manual
Figure 16. System Web Page
3.1.3.
Work Mode Page
HF-LPB module can works at AP mode to simplify user’s configuration, can also works at STA to
connect remote server through AP router. Also, it can configure at AP+STA mode which provide very
flexible application for customers.
Figure 17. Work Mode Page
3.1.4.
STA Setting Page
User can push “Scan” button to auto search Wi-Fi AP router nearby, and can connect with associate
AP through some settings. Please note the encryption information input here must be fully same with
Wi-Fi AP router’s configration, and then it can link with AP correctly.
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HF-LPB Low Power WiFi Module User Manual
Figure 18. STA Setting Page
3.1.5.
AP Setting Page
When user select module works at AP and AP+STA mode, then need setting this page and provide
wireless and network parameters. Most of the system support DHCP to achieve IP address, so we
suggest to “Enable” DHCP server in most applications.
Figure 19. AP Setting Page
3.1.6.
Other Setting Page
HF-LPB usually works at data transparent transmission mode. At this mode, the user device which
connected with HF-LPB will connect and communicate with remote PC or server. At this page, user
need setting serial port communication parameters and defines TCP related protocal parameters.
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HF-LPB Low Power WiFi Module User Manual
Figure 20. Other Setting Page
3.1.7.
Account Management Page
This page set web server’s user name and password.
Figure 21. Account Page
3.1.8.
Upgrade Software Page
User can upgrade new software (firmware) version through Wi-Fi.
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HF-LPB Low Power WiFi Module User Manual
Figure 22. Upgrade SW page
3.1.9.
Restart Page
Most of the settting and configuration can only effective after system restart. User shall restart after
finish all setting.
Figure 23. Restart Page
3.1.10. Restore Page
After module restore factory default setting, all user configuration profile will lose.
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HF-LPB Low Power WiFi Module User Manual
User can access http://10.10.100.254 to set again, and user name and password is “admin”. HF-LPB
will restore to AP mode for factory default setting.
Figure 24. Restore Page
3.2. HF-LPB Usage Introduction
3.2.1.
Software Debug Tools
High-Flying use two common software tools debugging and applying HF-LPB module.
(User can also select other tools used to debug serial port).
3.2.2.
„
Serial Debugging Software: ComTools
„
Ethernet Debugging Software: TCPUDPDbg
Network Connection
User can select two methods to connect HF-LPB module base on dedicated application.
¾
Use HF-LPB STA interface. HF-LPB and debug PC2 connect to a wireless AP, another
PC1 (or user device) connect to HF-LPB module with serial port:
Figure 25. STA Interface Debug Connection
¾
Use HF-LPB AP interface. Debug PC2 connect to HF-LPB through wireless connection,
another PC1 (or user device) connect to HF-LPB module with serial port.
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HF-LPB Low Power WiFi Module User Manual
Figure 26. AP Interface Debug Connection
3.2.3.
3.2.4.
Default Parameter Setting
„
Default SSID: HF-LPB;
„
Deault security mode: open,none;
„
User UART parameter setting:115200,8,1,None;
„
Default network parameter setting:TCP,Server,8899,10.10.100.254;
„
Module IP address: dhcp,0.0.0.0,0.0.0.0,0.0.0.0;
Module Debug
PC1 open “CommTools” program, setting the same serial port parameters with HF-LPB module and
open serial port connection.
Figure 27. “CommTools” Serial Debug Tools
PC2 open “TCPUDPDbg” program, and create a new connection. If HF-LPB configured as Server
mode, “TCPUDPDbg” Tools shall create “Client “mode connection. Or otherwise, create a “Server”
mode connection.
Figure 28.
“TCPUDPDbg” Tools Create Connection
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HF-LPB Low Power WiFi Module User Manual
Then setting the TCP/UDP connection parameters. Default as following:
Figure 29.
“TCPUDPDbg” Tools Setting
Then, click “Create” button to create a connection.
Figure 30.
“TCPUDPDbg” Tools Connection
Now, in transparent transmission mode, data can be transferred from “CommTools” program to
“TCPUDPDbg” program, or in reverse. You can see data in receiver side will keep same as in sender
side.
3.3. Typical Application Examples
3.3.1.
Wireless Control Application
Figure 31. Wireless Control Application
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HF-LPB Low Power WiFi Module User Manual
For this wireless control application, HF-LPB works as Ad-Hoc 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 HF-LPB module.
3.3.2.
Remote Management Application
Figure 32. Remote Management Application
For this remote management application, HF-LPB 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.
3.3.3.
Transparent Serial Port Application
For this transparent serial port application, two HF-LPB modules connect as below figures to build up
a transparent serial port connection. HF-LPB works as Ad-Hoc mode to connect each other.
Figure 33. Transparent Serial Port Application
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HF-LPB Low Power WiFi Module User Manual
4. AT+INSTRUCTION INTRODUCTION
4.1. Configuration Mode
When HF-LPB power up, it will default works as transparent transmission mode, then user can switch
to configuration mode by serial port command. HF-LPB UART default parameters setting as below
figure,
Figure 34. HF-LPB Default UART Port Parameters
In configuration mode, user can setting the module through AT+ instruction set, which cover all web
page setting function.
4.1.1.
Switch to Configuration Mode
Two steps to finish switching from transparent transmission mode to configuration mode.
¾
UART input “+++”, after module receive “+++”, and feedback “a” as confirmation.
¾
UART input “a”, after module receive “a” and feedback “+ok” to go into AT+
instruction set configuration mode.
Figure 35. Switch to Configuration Mode
Notes:
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).
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HF-LPB Low Power WiFi Module User Manual
4.2. 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 36. ”AT+H” Instruction for Help
4.2.1.
Instruction Syntax Format
AT+Instruction protocol is based on the instruction of ASCII command style, the description of syntax
format as follow.
¾
¾
Format Description
„
< >: Means the parts must be included
„
[ ]:
Means the optional part
Command Message
AT+[op][para-1,para-2,para-3,para-4…]
„
AT+:
„
CMD: Command string;
„
[op]:
Prefix of command message;
Symbol of command operator,
‹
“=” : The command requires parameters input;
‹
“NULL”: Query the current command parameters setting;
„
[para-n]: Parameters input for setting if required;
„
：”Enter” Key, it’s 0x0a or 0x0d in ASCII;
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HF-LPB Low Power WiFi Module User Manual
Notes: When input AT+Instruction, “AT+” character will display capital letter automatic and
other parts will not change as you input.
¾
Response Message
+[op] [para-1,para-2,para-3,para-4…]
¾
„
+: Prefix of response message;
„
RSP: Response string;
‹
“ok” : Success
‹
“ERR”: Failure
„
[op] : =
„
[para-n]: Parameters if query command or Error code when error happened;
„
: ASCII 0x0d;
„
: ASCIII 0x0a;
Error Code
Table 10
4.2.2.
Error Code Describtion
Error Code
-1
-2
Description
Invalid Command Format
Invalid Command
-3
-4
-5
Invalid Operation Symbol
Invalid Parameter
Operation Not Permitted
AT+ Instruction Set
Table 11
AT+ Instruction Set List
Instruction
Description

NULL
Managment Instruction Set
Open/Close show back function
WMODE
Set/Query Wi-Fi work mode (AP/STA/APSTA)
ENTM
Set module into transparent transition mode
TMODE
Set/Query module data transfer mode
MID
Query module ID information
VER
Query module software version information
RELD
Restore to factory default setting
Re-start module
Help
UART Instruction Set
UART
Set/Query serial port parameters
UARTF
Open/Close UART auto-frame function
UARTFT
Set/Query UART auto-frame trigger time
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HF-LPB Low Power WiFi Module User Manual
UARTFL
Set/Query UART auto-frame trigger length
UARTTE
Set/Query UART free-frame triggerf time between two bytes
Command Mode Set
SEND
Send Data at Command Mode
RECV
Receive Data at Command Mode
Network Instruction Set
PING
Network ”Ping” Instruction
NETP
Set/Query network protocol parameters
TCPLK
Query if TCP link already build-up
TCPTO
Set/Query TCP timeout
TCPDIS
Open/Close TCP link
Wi-Fi STA Instruction Set (Effective when module works as STA)
WSKEY
Set/Query STA security parameters
WSSSID
Set/Query associated AP SSID parameters
WANN
Set/Query STA’s network parameters
WSMAC
Set/Query STA’s MAC address
WSLK
Query STA Wi-Fi link status
WSLQ
Query STA Wi-Fi signal strength
WSCAN
Scan AP
WiFi AP Instruction Set (Effective when module works as AP)
LANN
Set/Query AP’s network parameters
WAP
Set/Query AP Wi-Fi parameters
WAKEY
Set/Query AP security parameters
WAMAC
Set/Query AP MAC address
WADHCP
Set/Query AP DHCP Server status
Webpage Management Instruction Set
WEBSWITCH Set Webpage Option
Power Management Instruction Set
PSPAR
Set/Query power save parameters at NORMAL mode
MSOPT
Set/Query wake up option parameters
MSLP
Set/Query deep sleep/standby mode parameters
TSPAR
Set/Query timeout wake up parameters
Others Instruction Set
WRMID
Set module ID
ASWD
Set/Query WiFi configuration code
:
„
All Power Management Instruction Set NOT support in this version.
4.2.2.1. AT+E
„
Function: Open/Close show back function;
„
Format:
AT+E
+ok< LF >< LF >
When HF-LPB 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.
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HF-LPB Low Power WiFi Module User Manual
4.2.2.2. AT+WMODE
„
Function: Set/Query WIFI work mode;
„
Format:
‹
Query Operation
AT+WMODE
+ok=< LF >< LF >
‹
Set Operation
AT+ WMODE=
+ok< LF >< LF >
„
Parameters:
‹
mode:Wi-Fi work mode
—
AP
—
STA
—
APSTA
4.2.2.3. AT+ENTM
„
Function: Set module into transparent transmition mode;
„
Format:
AT+ENTM
+ok< LF >< LF >
When operate this command, module switch from configuration mode to transparent transmission
mode.
4.2.2.4. AT+TMODE
„
Function: Set/Query module data transfer mode.
„
Format:
‹
Query Operation
AT+TMODE
+ok=< LF >< LF >
‹
Set Operation
AT+TMODE=
+ok< LF >< LF >
„
Parameters:
‹
tmode: data transfer mode, include:
—
throughput
—
cmd
4.2.2.5. AT+MID
„
Function: Query module ID information;
„
Format:
‹
Query Operation
AT+MID
+ok=< LF >< LF >
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HF-LPB Low Power WiFi Module User Manual
„
Parameters:
‹
module_id: Module ID information;
—
HF-LPB;
Notes: User can set this parameter through AT+WRMID.
4.2.2.6. AT+VER
„
Function: Query module software version information;
„
Format:
‹
Query Operation
AT+VER
+ok=< LF >< LF >
„
Parameters:
‹
ver: Module software version information;
4.2.2.7. AT+RELD
„
Function: module restore to factory default setting;
„
Format:
‹
Set Operation
AT+ RELD
+ok=rebooting…< LF >< LF >
When operate this command, module will restore to factory default setting and reboot.
4.2.2.8. AT+Z
„
Function: Re-start module;
„
Format:
AT+ Z
4.2.2.9. AT+H
„
Function: Help;
„
Format:
‹
Query Operation
AT+H
+ok=< LF >< LF >
„
Parameters:
‹
command help: command introduction;
4.2.2.10. AT+UART
„
Function: Set/Query serial port parameters;
„
Format:
‹
Query Operation
AT+UART
+ok=< LF >< LF >
‹
Set Operation
AT+UART=
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HF-LPB Low Power WiFi Module User Manual
+ok< LF >< LF >
„
Parameters:
‹
baudrate:
—
300,600,1200,1800,2400,4800,9600,19200,38400,57600,115200,230400,
380400,460800.
‹
data_bits:
—
‹
stop_bits:
—
‹
‹
1,2
parity:
—
NONE
—
EVEN
—
ODD
Flowctrl: (CTSRTS)
—
NFC: No hardware flow control
—
FC: hardware flow control
4.2.2.11. AT+ UARTF
„
Function: Open/Close UART auto-frame function;
„
Format:
‹
Query Operation
AT+ UARTF
+ok=< LF >< LF >
‹
Set Operation
AT+ UARTF=
+ok< LF >< LF >
„
Parameters:
‹
para:
—
disable
- Close auto-frame function;
—
enable
- Open auto-frame function;
4.2.2.12. AT+ UARTFT
„
Function: Set/Query UART auto-frame trigger time;
„
Format:
‹
Query Operation
AT+ UARTFT
+ok=
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FCC ID Filing: AZY-HF-LPB

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