High Flying Electronics Technology HF-LPT200 Embedded WiFi Module User Manual GPON SFU System Design

High-Flying Electronics Technology Co.,Ltd Embedded WiFi Module GPON SFU System Design

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Document ID2265621
Application IDak3ixO86/Z2P2kLcNS79+w==
Document DescriptionManual
Short Term ConfidentialNo
Permanent ConfidentialNo
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Document TypeUser Manual
Display FormatAdobe Acrobat PDF - pdf
Filesize127.2kB (1589938 bits)
Date Submitted2014-05-13 00:00:00
Date Available2014-05-13 00:00:00
Creation Date2014-03-27 15:41:14
Producing SoftwareMicrosoft® Office Word 2007
Document Lastmod2014-03-27 15:41:14
Document TitleGPON SFU System Design
Document CreatorMicrosoft® Office Word 2007
Document Author: Kevin Qiu

HF-LPT200 Low Power WiFi Module User Manual
HF-LPT200
Low Power WiFi Module User Manual
Overview of Characteristic
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V 1.2
Support IEEE802.11b/g/n Wireless Standards

Based on Self-developed High Cost Effective MCU

Ultra-Low-Power for Battery Applications with Excellent Power Save Scheme
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

Support UART/SPI/GPIO Data Communication Interface

Support Work As STA/AP/AP+STA Mode

Support Smart Link Function (APP program provide)

Support Wireless and Remote Firmware Upgrade Function

Support WPS Function

Support Multi-TCP Link (5 Channel) Apllication

Support Internal/External Pin Antenna Option

Single +3.3V Power Supply

Smallest Size: 22mm x 13.5mm x 3mm , SMT17 Package

FCC/CE Certificated
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HF-LPT200 Low Power WiFi Module User Manual
TABLE OF CONTENTS
LIST OF FIGURES ...................................................................................................................................6
LIST OF TABLES ....................................................................................................................................7
HISTORY ..................................................................................................................................................8
PRODUCT OVERVIEW ................................................................................................................9
1.1.
General Description .................................................................................................................9
Device Features ..................................................................................................................9
1.1.2
Device Paremeters ...........................................................................................................10
1.1.3
Key Application .................................................................................................................10
1.2.
Hardware Introduction ...........................................................................................................11
Pins Definition ...................................................................................................................11
1.2.2.
Electrical Characteristics ..................................................................................................12
1.2.3.
Mechanical Size ................................................................................................................13
1.2.4.
On-board Chip Antenna ....................................................................................................14
1.2.5.
External Antenna ..............................................................................................................14
1.2.6.
Evaluation Kit ....................................................................................................................14
1.2.7.
Order Information ..............................................................................................................16
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1.2.1.
1.3.
Typical Application ................................................................................................................16
1.3.1.
2.
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1.1.1
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1.
Hardware Typical Application ...........................................................................................16
FUNCTIONAL DESCRIPTION ..................................................................................................18
Wireless Networking ..............................................................................................................18
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2.1.
3.
2.1.1.
Basic Wireless Network Based On AP (Infrastructure) ....................................................18
2.1.2.
Wireless Network Based On AP+STA ..............................................................................18
2.2.
Work Mode : Transparent Transmission Mode...................................................................19
2.3.
UART Frame Scheme ............................................................................................................20
2.3.1.
UART Free-Frame ............................................................................................................20
2.3.2.
UART Auto-Frame ............................................................................................................20
2.4.
Encryption ..............................................................................................................................21
2.5.
Parameters Configuration .....................................................................................................21
2.6.
Firmware Update ....................................................................................................................21
2.7.
SOCKET B Function ..............................................................................................................22
2.8.
Multi-TCP Link Connection ...................................................................................................22
OPERATION GUIDELINE ..........................................................................................................24
3.1.
Configuration via Web Accessing ........................................................................................24
3.1.1.
Open Web Management Interface ...................................................................................24
3.1.2.
Upgrade Software Page ...................................................................................................25
3.2.
HF-LPT200 Usage Introduction ............................................................................................25
3.2.1.
Software Debug Tools ......................................................................................................25
3.2.2.
Network Connection .........................................................................................................25
3.2.3.
Default Parameter Setting ................................................................................................26
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HF-LPT200 Low Power WiFi Module User Manual
3.2.4.
3.3.
Typical Application Examples ..............................................................................................27
3.3.1.
Wireless Control Application .............................................................................................27
3.3.2.
Remote Management Application.....................................................................................28
3.3.3.
Transparent Serial Port Application ..................................................................................28
AT+INSTRUCTION INTRODUCTION ......................................................................................29
4.1.
Configuration Mode ...............................................................................................................29
4.1.1.
4.2.
Switch to Configuration Mode ...........................................................................................29
AT+Instruction Set Overview ................................................................................................30
Instruction Syntax Format .................................................................................................30
4.2.2.
AT+Instruction Set ............................................................................................................31
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4.2.1.
AT+E .............................................................................................................................33
4.2.2.2.
AT+WMODE .................................................................................................................33
4.2.2.3.
AT+ENTM .....................................................................................................................34
4.2.2.4.
AT+TMODE ...................................................................................................................34
4.2.2.5.
AT+MID .........................................................................................................................34
4.2.2.6.
AT+VER ........................................................................................................................35
4.2.2.7.
AT+LVER ......................................................................................................................35
4.2.2.8.
AT+FWSZ .....................................................................................................................35
4.2.2.9.
AT+RELD ......................................................................................................................35
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4.2.2.1.
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4.
Module Debug...................................................................................................................26
AT+FCLR ...................................................................................................................35
4.2.2.11.
AT+Z ..........................................................................................................................36
4.2.2.12.
AT+H .........................................................................................................................36
4.2.2.13.
AT+CFGRD ...............................................................................................................36
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4.2.2.10.
4.2.2.14.
AT+CFGWR ..............................................................................................................36
4.2.2.15.
AT+CFGFR ................................................................................................................36
4.2.2.16.
AT+CFGTF ................................................................................................................36
4.2.2.17.
AT+UART ..................................................................................................................37
4.2.2.18.
AT+UARTF ................................................................................................................37
4.2.2.19.
AT+UARTFT ..............................................................................................................38
4.2.2.20.
AT+UARTFL ..............................................................................................................38
4.2.2.21.
AT+UARTTE..............................................................................................................38
4.2.2.22.
AT+SEND ..................................................................................................................38
4.2.2.23.
AT+RECV ..................................................................................................................39
4.2.2.24.
AT+PING ...................................................................................................................39
4.2.2.25.
AT+NETP ..................................................................................................................39
4.2.2.26.
AT+MAXSK ...............................................................................................................40
4.2.2.27.
AT+TCPLK ................................................................................................................40
4.2.2.28.
AT+TCPTO ................................................................................................................40
4.2.2.29.
AT+TCPDIS ...............................................................................................................41
4.2.2.30.
AT+SOCKB ...............................................................................................................41
4.2.2.31.
AT+TCPDISB ............................................................................................................42
4.2.2.32.
AT+TCPTOB .............................................................................................................42
4.2.2.33.
AT+TCPLKB ..............................................................................................................42
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HF-LPT200 Low Power WiFi Module User Manual
AT+SNDB ..................................................................................................................43
4.2.2.35.
AT+RCVB ..................................................................................................................43
4.2.2.36.
AT+WSSSID ..............................................................................................................43
4.2.2.37.
AT+WSKEY ...............................................................................................................43
4.2.2.38.
AT+WANN .................................................................................................................44
4.2.2.39.
AT+WSMAC ..............................................................................................................44
4.2.2.40.
AT+WSLK ..................................................................................................................44
4.2.2.41.
AT+WSLQ .................................................................................................................45
4.2.2.42.
AT+WSCAN...............................................................................................................45
4.2.2.43.
AT+WSDNS...............................................................................................................45
4.2.2.44.
AT+LANN ..................................................................................................................45
4.2.2.45.
AT+WAP ....................................................................................................................46
4.2.2.46.
AT+WAKEY ...............................................................................................................46
4.2.2.47.
AT+WAMAC ..............................................................................................................47
4.2.2.48.
AT+WADHCP ............................................................................................................47
4.2.2.49.
AT+WADMN ..............................................................................................................47
4.2.2.50.
AT+WALK ..................................................................................................................47
4.2.2.51.
AT+WALKIND............................................................................................................48
4.2.2.52.
AT+PLANG ................................................................................................................48
4.2.2.53.
AT+UPURL ................................................................................................................48
4.2.2.54.
AT+UPFILE ...............................................................................................................49
4.2.2.55.
AT+LOGSW ...............................................................................................................49
4.2.2.56.
AT+LOGPORT ..........................................................................................................49
4.2.2.57.
AT+UPST ..................................................................................................................49
4.2.2.58.
AT+WEBU .................................................................................................................50
4.2.2.59.
AT+MSLP ..................................................................................................................50
4.2.2.60.
AT+NTPRF ................................................................................................................50
4.2.2.61.
AT+NTPEN ................................................................................................................51
4.2.2.62.
AT+NTPTM................................................................................................................51
4.2.2.63.
AT+WRMID ...............................................................................................................51
4.2.2.64.
AT+RLDEN ................................................................................................................51
4.2.2.65.
AT+ASWD .................................................................................................................52
4.2.2.66.
AT+MDCH .................................................................................................................52
4.2.2.67.
AT+TXPWR ...............................................................................................................52
4.2.2.68.
AT+SMTLK ................................................................................................................53
4.2.2.69.
AT+WPS ....................................................................................................................53
4.2.2.70.
AT+WPSBTNEN........................................................................................................53
4.2.2.71.
AT+LPTIO..................................................................................................................54
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4.2.2.34.
5.
PACKAGE INFORMATION ........................................................................................................55
5.1.
Recommended Reflow Profile ..............................................................................................55
5.2.
Device Handling Instruction (Module IC SMT Preparation) ...............................................55
5.3.
Shipping Information .............................................................................................................56
APPENDIX A: HW REFERENCE DESIGN ......................................................................................57
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HF-LPT200 Low Power WiFi Module User Manual
APPENDIX B: HTTP PROTOCOL TRANSFER ..............................................................................58
B.1. HTTP AT command ...................................................................................................................58
B.1.1.
AT+HTTPURL ...................................................................................................................58
B.1.2.
AT+HTTPTP .....................................................................................................................58
B.1.3.
AT+HTTPPH .....................................................................................................................58
B.1.4.
AT+HTTPCN .....................................................................................................................59
B.1.5.
AT+HTTPUA .....................................................................................................................59
B.1.6.
AT+HTTPDT .....................................................................................................................59
B.2. HTTP Example ...........................................................................................................................59
APPENDIX C:REFERENCES ............................................................................................................61
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C.1．High-Flying Mass Production Tool ........................................................................................61
C.2．SmartLink APP Config Tool ...................................................................................................61
C.3．EVK Quick Start Guide ...........................................................................................................61
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APPENDIX D: CONTACT INFORMATION ......................................................................................62
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HF-LPT200 Low Power WiFi Module User Manual
LIST OF FIGURES
HF-LPT200 View ..................................................................................................................11
Figure 2.
HF-LPT200 Pins Map ...........................................................................................................11
Figure 3.
HF-LPT200 Mechanical Dimension......................................................................................13
Figure 4.
HF-LPT200 PCB Symbol Size .............................................................................................13
Figure 5.
Suggested Module Placement Region .................................................................................14
Figure 6.
HF-LPT200 Evaluation Kit ....................................................................................................15
Figure 7.
HF-LPT200 Order Information ..............................................................................................16
Figure 8.
HF-LPT200 Hardware Typical Application ...........................................................................16
Figure 9.
HF-LPT200 Basic Wireless Network Structure ....................................................................18
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Figure 1.
HF-LPT200 AP+STA Network Structure ..........................................................................19
Figure 11.
Socket B function demo ....................................................................................................22
Figure 12.
Multi-TCP Link Data Transmition Structure ......................................................................23
Figure 13.
Open Web Management page ..........................................................................................24
Figure 14.
Upgrade SW page ............................................................................................................25
Figure 15.
STA Interface Debug Connection .....................................................................................25
Figure 16.
AP Interface Debug Connection .......................................................................................26
Figure 17.
“CommTools” Serial Debug Tools ....................................................................................26
Figure 18.
“TCPUDPDbg” Tools Create Connection .........................................................................26
Figure 19.
“TCPUDPDbg” Tools Setting ............................................................................................27
Figure 20.
“TCPUDPDbg” Tools Connection .....................................................................................27
Figure 21.
Wireless Control Application .............................................................................................27
Figure 22.
Remote Management Application.....................................................................................28
Figure 23.
Transparent Serial Port Application ..................................................................................28
Figure 24.
HF-LPT200 Default UART Port Parameters .....................................................................29
Figure 25.
Switch to Configuration Mode ...........................................................................................29
Figure 26.
”AT+H” Instruction for Help ...............................................................................................30
Figure 27.
Reflow Soldering Profile ...................................................................................................55
Figure 28.
Shipping Information .........................................................................................................56
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Figure 10.
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HF-LPT200 Low Power WiFi Module User Manual
LIST OF TABLES
HF-LPT200 Module Technical Specifications .......................................................................10
Table 2
HF-LPT200 Pins Definition ....................................................................................................11
Table 3
HF-LPT200 External Antenna Parameters ...........................................................................14
Table 4
HF-LPT200 Evaluation Kit Interface Description ...................................................................15
Table 8
HF-LPT200 Web Access Default Setting ..............................................................................24
Table 9
Error Code Describtion ..........................................................................................................31
Table 10
AT+Instruction Set List ........................................................................................................31
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Table 1
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Table 11 Reflow Soldering Parameter .................................................................................................55
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HF-LPT200 Low Power WiFi Module User Manual
HISTORY
Ed. V1.0 12-20-2013
First Version.
Ed. V1.0.1 12-25-2013. Update product view.
Ed. V1.1
01-02-2014. Update AT command, add AT+SMTLK、AT+LPTIO.
Ed. V1.2
03-13-2014. Update product view and package. Update AT+TCPDISB, AT+NETP,
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AT+FCLR.description.
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HF-LPT200 Low Power WiFi Module User Manual
1. PRODUCT OVERVIEW
1.1. General Description
The HF-LPT200 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 interface for data transfer.HFLPT200 integrate MAC, baseband processor, RF transceiver with power amplifier in hardware and all
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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.
The HF-LPT200 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.
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The HF-LPT200 integrates all Wi-Fi functionality into a low-profile, 22x13.5x 3mm SMT module
package that can be easily mounted on main PCB with application specific circuits. Also, module
1.1.1 Device Features
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provides built-in antenna, external pad antenna option.
Single stream Wi-Fi @ 2.4 GHz with support for WEP security mode as well as WPA/WPA2

Based on Self-developed High Cost Performance MCU

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 Smart Link Function

Support Wireless and Remote Firmware Upgrade Function

Integrated chip antenna, antenna connector options.

Support WPS.

Support AT Command Config.

Compact surface mount module 22mm x 13.5mm x 3mm, SMT17 Package

Single supply – 3.3V operation.

Low power RTOS and drivers.

CE/FCC Certified.

RoHS compliant.
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HF-LPT200 Low Power WiFi Module User Manual
1.1.2 Device Paremeters
Table 1
Parameters
Certification
Wireless standard
Frequency range
FCC/CE
802.11 b/g/n
2.412GHz-2.484GHz
802.11b: +16 +/-2dBm (@11Mbps)
802.11g: +14 +/-2dBm (@54Mbps)
802.11n: +13 +/-2dBm (@HT20, MCS7)
802.11b: -93 dBm (@11Mbps ,CCK)
802.11g: -85 dBm (@54Mbps, OFDM)
802.11n: -82 dBm (@HT20, MCS7)
External: Pad interface
Internal:On-board Chip antenna
UART
SPI, GPIO
2.8~3.6V
Peak [Continuous TX]: ~200mA
Normal [WiFi ON/OFF, DTIM=100ms]:
Average. ~12mA, Peak: 200mA
Standby : <200uA(Reserved)
-40℃- 85℃
-45℃- 125℃
Transmit Power
Receiver Sensitivity
Antenna Option
Data Interface
Operating Voltage
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Operating Current
Operating Temp.
Storage Temp.
Dimensions and Size
Network Type
Security Mechanisms
Encryption
Update Firmware
22mm×13.5mm×3mm
STA /AP/STA+AP
WEP/WPA-PSK/WPA2-PSK
WEP64/WEP128/TKIP/AES
Local Wireless, Remote
Web Page Upgrade
Support SDK for application develop
IPv4, TCP/UDP/FTP/HTTP
AT+instruction set. Android/ iOS
Smart Link APP tools
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Hardware
Parameters
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Wireless
Parameters
Item
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Class
HF-LPT200 Module Technical Specifications
Software
Parameters
Customization
Network Protocol
User Configuration
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-LPT200 Low Power WiFi Module User Manual
1.2. Hardware Introduction
Pins Definition
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1.2.1.
HF-LPT200 View
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Figure 1.
Figure 2.
Table 2
HF-LPT200 Pins Map
HF-LPT200 Pins Definition
Pin
Describtion
Net Name
SPI_MOSI
Signal
Type
SPI Data Out
GPIO1, No connect if not use.
SPI Interface
SPI_CLK
I/O
GPIO2, No connect if not use.
SPI Data In
SPI_MISO
GPIO3, No connect if not use
SPI Interface
SPI_CS
I/O
GPIO4, No connect if not use
UART0
UART0_TX
GPIO5, No connect if not use
UART0
UART0_RX
GPIO6, No connect if not use.
UART0
UART0_CTS
I/O
GPIO7, No connect if not use.
UART0
UART0_RTS
I/O
GPIO8, No connect if not use.
GPIO9
I,PU
GPIO9, No connect if not use.
GPIO9
Comments
10
Module Reset
EXT_RESETn
I,PU
“Low” effective reset input.
11
Module Boot Up
Indicator
Multi-Function
nReady
nReload
I,PU
“0” – Boot-up OK;
“1” – Boot-up No OK;
Detailed functions see 
12
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HF-LPT200 Low Power WiFi Module User Manual
Describtion
Net Name
13
Wi-Fi Status
nLink
Signal
Type
14
GPIO14
GPIO14
I/O
15
+3.3V Power
DVDD
Power
16
Ground
GND
Power
Ant_2.4G
17 2.4GHz Antenna PAD

nReload Pin (Button) function：
1.
Comments
“0” – Wi-Fi connect to router
“1” – Wi-Fi unconncted;
Detailed functions see 
Can be used for sleep control or WPS
function
Power Input: 2.6~3.6V
50ohm Impendence
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Pin
When this pin is set to “low” during module boot up, the module will enter wireless
firmware and config upgrade mode. This mode is used for customer manufacture.
(See Appendix C to download software tools for customer batch configuration and
upgrade firmware during mass production)
After module is powered up, short press this button ( “Low” < 3s ) to make the
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2.
module go into “Smart Link “ config mode, waiting for APP to set password and
other information. (See Appendix C to download SmartLink APP)
3.
After module is powered up, long press this button ( “Low” > 3s ) to make the
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module recover to factory setting.
High-Flying strongly suggest customer fan out this pin to connector or button for
“Manufacture” and “ Smart Link” application.
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nLink Pin (LED) function：
1.
At wireless firmware and config upgrade mode , this LED used to indicate configure
and upgrade status.
2.
At “Smart Link “ config mode, this LED used to indicate APP to finish setting.
3.
At normal mode, it’s Wi-Fi link status indicator
High-Flying strongly suggest customer fan out this pin to LED.
1.2.2.
Electrical Characteristics
Absolute Maximum Ratings:
Parameter
Condition
Storage temperature range
Maximum soldering temperature
Min.
-45
IPC/JEDEC J-STD-020
Typ.
Max.
Unit
125
°C
260
°C
Supply voltage
3.8
Voltage on any I/O pin
3.3
ESD (Human Body Model HBM)
TAMB=25°C
KV
ESD (Charged Device Model, CDM)
TAMB=25°C
KV
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HF-LPT200 Low Power WiFi Module User Manual
Power Supply & Power Consumption:
Parameter
Condition
Operating Supply voltage
Min.
Typ.
Max.
Unit
2.8
3.3
3.8
Supply current, peak
Continuous Tx
200
mA
Supply current, IEEE PS
DTIM=100ms
12
mA
Output high voltage
Sourcing 6mA
Output low voltage
Sinking 6mA
2.8
Input high voltage
2.2
Input low voltage
0.8
Mechanical Size
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1.2.3.
0.2
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HF-LPT200 modules physical size （Unit: mm） as follows:
Figure 3.
HF-LPT200 Mechanical Dimension
HF-LPT200 Module PCB symbol size (mm) as follows:
Figure 4.
HF-LPT200 PCB Symbol Size
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HF-LPT200 Low Power WiFi Module User Manual
1.2.4.
On-board Chip Antenna
HF-LPT200 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:

For customer PCB, RED color region (8.3x18.4mm) can’t put componet or paste GND net;

Antenna must away from metal or high components at least 10mm;

Antenna can’t be shieldedby any meal enclosure; All cover, include plastic, shall away from
Figure 5.
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antenna at least 10mm;
Suggested Module Placement Region
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High-Flying suggest HF-LPT200 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.
External Antenna
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1.2.5.
HF-LPT200 module supports internal antenna and external antenna(I-PEX or SMA) option for user
dedicated application.
If user select external antenna, HF-LPT200 modules must be connected to the 2.4G antenna
according to IEEE 802.11b/g/n standards.
The antenna parameters required as follows:
Table 3
1.2.6.
HF-LPT200 External Antenna Parameters
Item
Parameters
Frequency range
2.4~2.5GHz
Impedance
VSWR
Return Loss
Connector Type
50 Ohm
2 (Max)
-10dB (Max)
I-PEX or populate directly
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-LPT200 module with the RS232 UART, USB (Internal USB to UART convetor) or Wireless interface to configure the parameters,
manage the module or do the some functional tests.
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Figure 6.
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HF-LPT200 Low Power WiFi Module User Manual
HF-LPT200 Evaluation Kit
Notes: User need download USB to UART port driver from High-Flying web or contact with technical
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support people for more detail.
The external interface description for evaluation kit as follows:
HF-LPT200 Evaluation Kit Interface Description
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Table 4
Function
External
Interface
Name
Description
RS232
Main data/command RS-232 interface
USB
UART to USB debug interface. (For PC without
RS232, need load driver). Can be Power input.
DC5-18V
DC jack for power in, 5~18V input.
EXT PORT
LED
JMP
Power
nLink
nReady
Button
nReset
nReload
WPS
HF-LPT200 GPIO function extend interface
connector
4Pin USB or RS232 Jumper. Left jump select USB.
3.3V Power Indicator
nLink -WiFi LINK Indicator
See 1.2.1
nReady – Module Bootup Ready Indicator
On (“low”)- Module bootup OK;
Off (“high”)- Mouule botup failed;
Twinkle- Remote Upgrade Ongoing;
Used to reset the module.
Restore factory default configuration after push this
pin more than 3s.
See 1.2.1
WPS Button
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HF-LPT200 Low Power WiFi Module User Manual
1.2.7.
Order Information
Base on customer detailed requirement, HF-LPT200 series modules provide different variants and
Figure 7.
HF-LPT200 Order InformationTypical Application
Hardware Typical Application
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1.2.8.
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physical type for detailed application.
Figure 8.
HF-LPT200 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.
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HF-LPT200 Low Power WiFi Module User Manual
(This pin is recommend to connect to LED, indicate status when the module in wireless
upgrade mode)
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 nLink 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
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open.
nReload- Module restore to factory default configuration.Input. Logics “0” effective.
(This pin is recommend to connect to button, is used to enter wireless upgrade mode)
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.. If nReload function not
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required, can leave this pin open.
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UART0_TXD/RXD- UART port data transmit and receive signal.
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HF-LPT200 Low Power WiFi Module User Manual
2. FUNCTIONAL DESCRIPTION
2.1. Wireless Networking
HF-LPT200 module can be configured as both wireless STA and AP base on network type. Logically
there are two interfaces in HF-LPT200. One is for STA, and another is for AP. When HF-LPT200
works as AP, other STA equipments are able to connect to HF-LPT200 module directly. Wireless
Notes:
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Networking with HF-LPT200 is very flexible.
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.
Basic Wireless Network Based On AP (Infrastructure)
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2.1.1.
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
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is transmitted through the AP. The figure following shows such type of networking.
Figure 9.
2.1.2.
HF-LPT200 Basic Wireless Network Structure
Wireless Network Based On AP+STA
HF-LPT200 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-LPT200 Low Power WiFi Module User Manual
Figure 10. HF-LPT200 AP+STA Network Structure
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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,
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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.
2.2. Work Mode : Transparent Transmission Mode
HF-LPT200 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:
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HF-LPT200 Low Power WiFi Module User Manual


Wireless Network Name（SSID）

Security Mode

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
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
Wireless Network Parameters
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
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HF-LPT200 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-LPT200 will think it as the end of one frame and transfer this free-frame to WiFi
port, or HF-LPT200 will receive UART data untill 1000 bytes, then transfer 1000 bytes frame to WiFi
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port.
HF-LPT200’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-LPT200 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 trigger length: The fixed data length that module used to transmitting to the
network.

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.
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HF-LPT200 Low Power WiFi Module User Manual
Detailed UART auto-frame function can refer to AT+instruction set “UARTF/UARTFT/UARTFL”
introduction.
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

WEP

WPA-PSK/TKIP

WPA-PSK/AES

WPA2-PSK/TKIP

WPA2-PSK/AES
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the HF-LPT200 module supports following:
2.5. Parameters Configuration
HF-LPT200 module supports two methods to configuration parameters: Web Accessing and
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AT+instruction set.
Web accessing means users can configure parameters through Web browser. When HF-LPT200
module connected to wireless network, parameters configuration is done on a PC connected to the
same wireless network.
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AT+instruction set configuration means user configure parameters through serial interface command.
Refer to “AT+instruction set” chapter for more detail.
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2.6. Firmware Update
HF-LPT200 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-LPT200.
HF-LPT200 module also support upgrade from remote HTTP server, keep module connects to AP
router before excuate remote HTTP upgrade. Remote upgrade have two methods: Direct Download
and Upgrade, Configure File Based Upgrade.
 Configure File Based Upgrade
AT+UPURL command to set the remote directory which the configuration file located, such as
AT+UPURL=http://www.hi-flying.com/!admin/down/
Notes: The last ’/’ can’t be remove
AT+UPFILE command to set the configuration file name, such as AT+UPFILE=config.txt
AT+UPST command to start remote Application upgrade. After excuate this command, the module will
firstly download configuration file (“config.txt”), then download the upgrade file base on the URL
address listed in the configure file.
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HF-LPT200 Low Power WiFi Module User Manual
General “config.txt” file format as following example:
[URL]=http://10.10.100.100:80/lpb.bin
[URL]= the URL address of Application.
 Direct Download and Upgrade
AT+UPURL command to set the remote directory and file name, such as:
AT+UPURL=http://www.hi-flying.com/!admin/down/,lpb.bin
After excuate this command, the module will directly download the “lpb.bin” file from remote directory
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and start upgrade Application.
Notes: please contact with high-flying technical people before upgrade firmware, or maybe damage
the module and can’t work again.
2.7. SOCKET B Function
HF-LPT200 support double socket communication, the socket B function is disabled by default.
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After the module is started, send command “AT+SOCKB” to set the connection parameter, send
command “AT+TCPDISB=on” to try to connect with TCP server. Send command “AT+TCPDISB=off”
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to close connection. Send command “AT+TCPLKB” to inqure TCP connection.
Figure 11. Socket B function demo
2.8. Multi-TCP Link Connection
When HF-LPT200 module configured as TCP Server, it supports Multi-TCP link connection, and
maximum 5 TCP clients permitted to connect to HF-LPT200 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.
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HF-LPT200 Low Power WiFi Module User Manual
Downstream: All data from serial port (user) will be duplicate and broadcast to every TCP connection
or client.
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Detailed multi-TCP link data transmition structure as following figure:
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Figure 12. Multi-TCP Link Data Transmition Structure
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HF-LPT200 Low Power WiFi Module User Manual
3. OPERATION GUIDELINE
3.1. Configuration via Web Accessing
When first use HF-LPT200 modules, user may need some configuration. User can connect to HFLPT200 module’s wireless interface with following default setting information and configure the module
through laptop.
HF-LPT200 Web Access Default Setting
Default Setting
HF-LPB100
IP Address
10.10.100.254
Subnet Mask
255.255.255.0
User Name
Admin
Admin
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Open Web Management Interface
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Parameters
SSID
Password
3.1.1.
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Table 8
Step 1: Connect laptop to SSID “HF-LPT200” of HF-LPT200 module via wireless LAN card;
Step 2: After wireless connection OK. Open Wen browser and access “http://10.10.100.254”;
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Step 3: Then input user name and password in the page as following and click “OK” button.
Figure 13. Open Web Management page
The web management interface is for upgrade module software.
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HF-LPT200 Low Power WiFi Module User Manual
3.1.2.
Upgrade Software Page
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User can upgrade new software (firmware) version through Wi-Fi.
Figure 14. Upgrade SW page
3.2.1.
Software Debug Tools
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3.2. HF-LPT200 Usage Introduction
High-Flying use two common software tools debugging and applying HF-LPT200 module.
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(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-LPT200 module base on dedicated application.

Use HF-LPT200 STA interface. HF-LPT200 and debug PC2 connect to a wireless AP,
another PC1 (or user device) connect to HF-LPT200 module with serial port:
Figure 15. STA Interface Debug Connection

Use HF-LPT200 AP interface. Debug PC2 connect to HF-LPT200 through wireless
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HF-LPT200 Low Power WiFi Module User Manual

connection, another PC1 (or user device) connect to HF-LPT200 module with serial port.
Figure 16. AP Interface Debug Connection
3.2.4.
Default Parameter Setting

Default SSID: HF-LPB100;

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
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3.2.3.
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and open serial port connection.
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PC1 open “CommTools” program, setting the same serial port parameters with HF-LPT200 module
Figure 17. “CommTools” Serial Debug Tools
PC2 open “TCPUDPDbg” program, and create a new connection. If HF-LPT200 configured as Server
mode, “TCPUDPDbg” Tools shall create “Client “mode connection. Or otherwise, create a “Server”
mode connection.
Figure 18.
“TCPUDPDbg” Tools Create Connection
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HF-LPT200 Low Power WiFi Module User Manual
Figure 19.
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Then setting the TCP/UDP connection parameters. Default as following:
“TCPUDPDbg” Tools Setting
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Then, click “Create” button to create a connection.
Figure 20.
“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 21. Wireless Control Application
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HF-LPT200 Low Power WiFi Module User Manual
For this wireless control application, HF-LPT200 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 HF-LPT200 module.
Remote Management Application
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3.3.2.
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Figure 22. Remote Management Application
For this remote management application, HF-LPT200 works as STA mode and connects to Internet
through wireless AP. Module configured as TCP Client and communicates with remote TCP server at
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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
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through the wireless network.
3.3.3.
Transparent Serial Port Application
For this transparent serial port application, two HF-LPB100 modules connect as below figures to build
up a transparent serial port connection. One HF-LPB100 works as AP mode, another HF-LPB100
works as STA mode. Make the STA device connects to AP.
Figure 23. Transparent Serial Port Application
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HF-LPT200 Low Power WiFi Module User Manual
4. AT+INSTRUCTION INTRODUCTION
4.1. Configuration Mode
When HF-LPT200 power up, it will default works as transparent transmission mode, then user can
switch to configuration mode by serial port command. HF-LPT200 UART default parameters setting as
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below figure,
Figure 24. HF-LPT200 Default UART Port Parameters
page setting function.
4.1.1.
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In configuration mode, user can setting the module through AT+instruction set, which cover all web
Switch to Configuration Mode
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Two steps to finish switching from transparent transmission mode to configuration mode.

UART input “+++”, after module receive “+++”, and feedback “a” as confirmation.

UART input “a”, after module receive “a” and feedback “+ok” to go into
AT+instruction set configuration mode.
Figure 25. 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.
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HF-LPT200 Low Power WiFi Module User Manual
2. Any other input or wrong step to UART port will cause the module still works as original mode
(transparent transmission).
3. “+++” and “a” should be input in a certain period of time to make the module switch to configuration
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mode. Like the following sequence.
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
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start.
Figure 26. ”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.


Format Description

< >: Means the parts must be included

[ ]:
Means the optional part
Command Message
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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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Notes: When input AT+Instruction, “AT+” character will display capital letter automatic and
other parts will not change as you input.

Response Message
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+[op] [para-1,para-2,para-3,para-4…]

+: Prefix of response message;

RSP: Response string;
“ok” : Success

“ERR”: Failure
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
[op] : =

[para-n]: Parameters if query command or Error code when error happened;

: ASCII 0x0d;

: ASCIII 0x0a;
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

Error Code
Table 9
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 10
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
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Instruction
Description
MID
Query module ID information
VER
Query module software version information
LVER
Query module detailed software version
FWSZ
Query Wi-Fi driver size
RELD
Restore to factory default setting
FCLR
Erase factory setting
Re-start module
Help
Configure Parameters Instruction Set
CFGRD
Batch Read User Configure Parameters
CFGWR
Batch Write Configure Parameters
CFGFR
Batch Read Factory Default Configure Parameters
CFGTF
Copy User Parameters to Factory Default Parameters
UART Instruction Set
UART
Set/Query serial port parameters
UARTFT
Open/Close UART auto-frame function
UARTFT
Set/Query UART auto-frame trigger time
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
MAXSK
Set/Query TCP Client connection number
TCPLK
Query if TCP link already build-up
TCPTO
Set/Query TCP timeout
TCPDIS
Open/Close TCP link
SOCKB
Set/Query SOCKB parameters
TCPDISB
Open/Close SOCKB TCP link
TCPTOB
Set/Query SOCKB TCP timeout
TCPLKB
Query if SOCKB TCP link already build-up
SNDB
Send data to SOCKB in Command Mode
RCVB
Receive data from SOCKB in Command Mode
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
WSDNS
Set/Query STA’s Static DNS server address
Wi-Fi 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
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HF-LPT200 Low Power WiFi Module User Manual
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Instruction
Description
WADHCP
Set/Query AP DHCP Server status
WADMN
Set/Query AP webpage domain name
WALK
Query MAC address of STA device connecting to module AP
WALKIND
Enable/Disable indication of connection status.
Webpage Management Instruction Set
PLANG
Set/Query Webpage Language Option
WEBU
Set/Query Webpage User name and Code
Remote Upgrade Instruction Set
UPURL
Set/Query remote upgrade URL address
UPFILE
Set/Query remote upgrade configure file name
LOGSW
Open/Close remote upgrade log
LOGPORT
Set/Query UDP port of remote upgrade log
UPST
Start remote Application upgrade
Power Management Instruction Set
MSLP
Set/Query deep sleep/standby mode parameters
Network Time Set
NTPRF
Set/Query time calibration interval
NTPEN
Enable/Disable time calibration function
NTPTM
Query time
Others Instruction Set
WRMID
Set module ID
RLDEN
Set/Query GPIO45 status
ASWD
Set/Query WiFi configuration code
MDCH
Set Wi-Fi Auto Switch Function
TXPWR
Set/Query Wi-Fi Transmit Power
SMTLK
Start SmartLink function
WPS
Start WPS function
WPSTNEN
Enable/Disable GPIO 15 WPS function
LPTIO
nRead/nLink/WPS function mapping
WIFI Config Tools don’t support “CFGRD” command yet。
4.2.2.1. AT+E

Function: Open/Close show back function;

Format:

Set Operation
AT+E=
+ok

Parameters:

status: Echo status

on: Open echo

off: Close echo
When HF-LPB100 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.
4.2.2.2. AT+WMODE

Function: Set/Query Wi-Fi work mode. Setting is valid after reset;
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HF-LPT200 Low Power WiFi Module User Manual

Format:

Query Operation
AT+WMODE
+ok=

Set Operation
AT+WMODE=
+ok
Parameters:

mode:Wi-Fi work mode

AP

STA

APSTA
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
4.2.2.3. AT+ENTM

Function: Set module into transparent transmition mode;

Format:
+ok
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AT+ENTM
When operate this command, module switch from configuration mode to transparent transmission
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mode.
4.2.2.4. AT+TMODE

Function: Set/Query module data transfer mode. Setting is valid after reset.

Format:
Query Operation
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
AT+TMODE
+ok=

Set Operation
AT+TMODE=
+ok

Parameters:

tmode: data transfer mode, include:

throughput: throughput mode

cmd: command mode

pwm: PWM/GPIO mode
4.2.2.5. AT+MID

Function: Query module ID information;

Format:

Query Operation
AT+MID
+ok=

Parameters:

module_id: Module ID information;
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HF-LPT200 Low Power WiFi Module User Manual

HF-LPB100;
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=
Parameters:

ver: Module software version information;
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
4.2.2.7. AT+LVER

Function: Query module detailed software version information;

Format:

Query Operation
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AT+LVER
+ok=
Parameters:

ver: Module software detailed version information;
4.2.2.8. AT+FWSZ
Fl


Function: Query Wi-Fi driver size;

Format:
Query Operation
ig
h-

AT+FWSZ
+ok=

Parametewrs:

size: Wi-Fi driver size.(Byte)
4.2.2.9. AT+RELD

Function: module restore to factory default setting;

Format:

Set Operation
AT+RELD
+ok=rebooting…
When operate this command, module will restore to factory default setting and reboot.
4.2.2.10. AT+FCLR

Function: Erase factory setting;

Format:

Query Operation
AT+FCLR
+ok
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
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HF-LPT200 Low Power WiFi Module User Manual
4.2.2.11. AT+Z

Function: Re-start module;

Format:
AT+Z
4.2.2.12. AT+H

Function: Help;

Format:

Query Operation
AT+H

Parameters:

command help: command introduction;
4.2.2.13. AT+CFGRD
ng
+ok=
Function: Batch Read User Configure Parameters;

Format:

Query Operation
AT+CFGRD
yi


Parameters:

Fl
+ok=
config: the first two bytes means the length of configuration parameters;
4.2.2.14. AT+CFGWR
Function: Batch Write User Configure Parameters;

Format:
ig
h-


Set Operation
AT+CFGWR=
+ok

Parameters:

config: the first two bytes means the length of configuration parameters;
4.2.2.15. AT+CFGFR

Function: Batch Read Factory Default Configure Parameters;

Format:

Query Operation
AT+CFGFR
+ok=

Parameters:

config: the first two bytes means the length of configuration parameters;
4.2.2.16. AT+CFGTF

Function: Copy User Parameters to Factory Default Parameters;

Format:
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
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HF-LPT200 Low Power WiFi Module User Manual

Query Operation
AT+CFGTF
+ok=

Parameters:

status: feedback operation status;
4.2.2.17. AT+UART

Function: Set/Query serial port parameters. Setting is valid after reset.

Format:

Query Operation
ng
AT+UART
+ok=

Set Operation
AT+UART=
+ok
Parameters:

baudrate:

yi

300,600,1200,1800,2400,4800,9600,19200,38400,57600,115200,230400,
380400,460800,921600
data_bits:


stop_bits:

1,2
parity:

NONE

EVEN

ODD
ig
h-

Fl


Flowctrl: (CTSRTS)

NFC: No hardware flow control

FC: hardware flow control
4.2.2.18. AT+UARTF

Function: Open/Close UART auto-frame function;

Format:

Query Operation
AT+UARTF
+ok=

Set Operation
AT+UARTF=
+ok

Parameters:

para:

disable
- Close auto-frame function;

enable
- Open auto-frame function;
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
- 37 -
HF-LPT200 Low Power WiFi Module User Manual
4.2.2.19. AT+UARTFT

Function: Set/Query UART auto-frame trigger time;

Format:

Query Operation
AT+UARTFT
+ok=
Source Exif Data: 
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : No
Warning                         : Error inflating stream
Author                          : Kevin Qiu
Create Date                     : 2014:03:27 15:41:14+08:00
Creator                         : Microsoft® Office Word 2007
Modify Date                     : 2014:03:27 15:41:14+08:00
Producer                        : Microsoft® Office Word 2007
Subject                         : SDC
Title                           : GPON SFU System Design
EXIF Metadata provided by EXIF.tools
FCC ID Filing: AZY-HF-LPT200

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