USR IOT USR-WIFI232-T Manuale utente

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Low Power WiFi Module User Manual

V 1.3

Overview of Characteristic

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

Support UART/PWM/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 Dial Switch Power Control

Support External IPEX or Pad Interface Antenna Option

Single +3.3V Power Supply

Smallest Size: 22mm x 13.5mm x 6mm, 1x10 2mm Connector

FCC/CE Certificated

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TABLE OF CONTENTS

LIST OF FIGURES...............................................................................................................................................6

LIST OF TABLES................................................................................................................................................. 7

HISTORY..................................................................................................................................................................8

1. PRODUCT OVERVIEW................................................................................................................................. 9

1.1. GENERAL DESCRIPTION.................................................................................................................... 9

1.1.1 DEVICE FEATURES....................................................................................................................... 9

1.1.2 DEVICE PARAMETERS................................................................................................................10

1.1.3 KEY APPLICATION.....................................................................................................................10

1.2. HARDWARE INTRODUCTION............................................................................................................. 12

1.2.1. PINS DEFINITION.................................................................................................................. 12

1.2.2. ELECTRICAL CHARACTERISTICS........................................................................................13

1.2.3. MECHANICAL SIZE.................................................................................................................. 14

1.2.4. EXTERNAL ANTENNA................................................................................................................15

1.2.5. EVALUATION KIT.....................................................................................................................15

1.3. TYPICAL APPLICATION.................................................................................................................. 16

1.3.1. HARDWARE TYPICAL APPLICATION................................................................................... 16

1.3.2. SMART LED APPLICATION HARDWARE TYPICAL CONNECTION.............................. 17

2. FUNCTIONAL DESCRIPTION............................................................................................................... 19

2.1. WIRELESS NETWORKING.................................................................................................................. 19

2.1.1. BASIC WIRELESS NETWORK BASED ON AP (INFRASTRUCTURE)............................19

2.1.2. WIRELESS NETWORK BASED ON AP+STA......................................................................... 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.................................................................................................................. 22

2.4. ENCRYPTION........................................................................................................................................22

2.5. PARAMETERS CONFIGURATION...................................................................................................... 22

2.6. FIRMWARE UPDATE............................................................................................................................23

2.7. GPIO/PWM FUNCTION.......................................................................................................................24

2.8. SOCKET B FUNCTION.......................................................................................................................25

2.9. MULTI-TCP LINK CONNECTION....................................................................................................25

3. OPERATION GUIDELINE....................................................................................................................... 27

3.1. CONFIGURATION VIA WEB ACCESSING..................................................................................... 27

3.1.1. OPEN WEB MANAGEMENT INTERFACE.................................................................................27

3.1.2. SYSTEM PAGE............................................................................................................................28

3.1.3. WORK MODE PAGE.....................................................................................................................28

3.1.4. STA SETTING PAGE................................................................................................................29

3.1.5. AP SETTING PAGE.................................................................................................................. 29

3.1.6. OTHER SETTING PAGE........................................................................................................... 30

3.1.7. ACCOUNT MANAGEMENT PAGE............................................................................................... 31

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3.1.8. UPGRADE SOFTWARE PAGE....................................................................................................31

3.1.9. RESTART PAGE......................................................................................................................... 31

3.1.10. RESTORE PAGE....................................................................................................................... 32

3.2. USR-WIFI232-T USAGE INTRODUCTION...................................................................................33

3.2.1. SOFTWARE DEBUG TOOLS...................................................................................................... 33

3.2.2. NETWORK CONNECTION........................................................................................................... 33

3.2.3. DEFAULT PARAMETER SETTING.......................................................................................... 33

3.2.4. MODULE DEBUG......................................................................................................................... 34

3.3. TYPICAL APPLICATION EXAMPLES............................................................................................ 35

3.3.1. WIRELESS CONTROL APPLICATION................................................................................... 35

3.3.2. REMOTE MANAGEMENT APPLICATION.................................................................................36

3.3.3. TRANSPARENT SERIAL PORT APPLICATION.................................................................. 36

4. AT+INSTRUCTION INTRODUCTION.................................................................................................. 37

4.1. CONFIGURATION MODE.................................................................................................................... 37

4.1.1. SWITCH TO CONFIGURATION MODE................................................................................... 37

4.2. AT+ INSTRUCTION SET OVERVIEW............................................................................................ 38

4.2.1. INSTRUCTION SYNTAX FORMAT.......................................................................................... 38

4.2.2. AT+ INSTRUCTION SET.........................................................................................................39

4.2.2.1. AT+E........................................................................................................................................41

4.2.2.2. AT+WMODE.............................................................................................................................. 41

4.2.2.3. AT+ENTM.................................................................................................................................42

4.2.2.4. AT+TMODE.............................................................................................................................. 42

4.2.2.5. AT+MID................................................................................................................................... 42

4.2.2.6. AT+VER................................................................................................................................... 42

4.2.2.7. AT+RELD.................................................................................................................................43

4.2.2.8. AT+FCLR.................................................................................................................................43

4.2.2.9. AT+Z........................................................................................................................................43

4.2.2.10. AT+H..................................................................................................................................... 43

4.2.2.11. AT+CFGRD............................................................................................................................43

4.2.2.12. AT+CFGWR............................................................................................................................43

4.2.2.13. AT+CFGFR............................................................................................................................44

4.2.2.14. AT+CFGTF............................................................................................................................44

4.2.2.15. AT+UART.............................................................................................................................. 44

4.2.2.16. AT+ UARTF......................................................................................................................... 45

4.2.2.17. AT+ UARTFT....................................................................................................................... 45

4.2.2.18. AT+ UARTFL....................................................................................................................... 45

4.2.2.19. AT+ UARTTE....................................................................................................................... 46

4.2.2.20. AT+ SEND............................................................................................................................46

4.2.2.21. AT+ RECV............................................................................................................................46

4.2.2.22. AT+ PING............................................................................................................................46

4.2.2.23. AT+NETP.............................................................................................................................. 47

4.2.2.24. AT+ MAXSK......................................................................................................................... 47

4.2.2.25. AT+ TCPLK......................................................................................................................... 48

4.2.2.26. AT+ TCPTO......................................................................................................................... 48

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4.2.2.27. AT+TCPDIS......................................................................................................................... 48

4.2.2.28. AT+SOCKB............................................................................................................................49

4.2.2.29. AT+TCPDISB....................................................................................................................... 49

4.2.2.30. AT+TCPTOB......................................................................................................................... 49

4.2.2.31. AT+TCPLKB......................................................................................................................... 50

4.2.2.32. AT+SNDB.............................................................................................................................. 50

4.2.2.33. AT+RCVB.............................................................................................................................. 50

4.2.2.34. AT+WSSSID......................................................................................................................... 50

4.2.2.35. AT+WSKEY............................................................................................................................51

4.2.2.36. AT+ WANN............................................................................................................................51

4.2.2.37. AT+ WSMAC......................................................................................................................... 52

4.2.2.38. AT+ WSLK............................................................................................................................52

4.2.2.39. AT+ WSLQ............................................................................................................................52

4.2.2.40. AT+WSCAN............................................................................................................................52

4.2.2.41. AT+ WSDNS......................................................................................................................... 53

4.2.2.42. AT+ LANN............................................................................................................................53

4.2.2.43. AT+WAP.................................................................................................................................53

4.2.2.44. AT+WAKEY............................................................................................................................54

4.2.2.45. AT+WAMAC............................................................................................................................54

4.2.2.46. AT+WADHCP......................................................................................................................... 54

4.2.2.47. AT+WADMN............................................................................................................................55

4.2.2.48. AT+PLANG............................................................................................................................55

4.2.2.49. AT+UPURL............................................................................................................................55

4.2.2.50. AT+UPFILE......................................................................................................................... 56

4.2.2.51. AT+UPWEB............................................................................................................................56

4.2.2.52. AT+UPCFG............................................................................................................................56

4.2.2.53. AT+UPNVR............................................................................................................................56

4.2.2.54. AT+UPAUTO......................................................................................................................... 57

4.2.2.55. AT+LOGSW............................................................................................................................57

4.2.2.56. AT+LOGPORT....................................................................................................................... 57

4.2.2.57. AT+UPST.............................................................................................................................. 58

4.2.2.58. AT+WEBU.............................................................................................................................. 58

4.2.2.59. AT+MSLP.............................................................................................................................. 58

4.2.2.60. AT+NTPRF............................................................................................................................58

4.2.2.61. AT+NTPEN............................................................................................................................59

4.2.2.62. AT+NTPTM............................................................................................................................59

4.2.2.63. AT+WRMID............................................................................................................................59

4.2.2.64. AT+RLDEN............................................................................................................................59

4.2.2.65. AT+ASWD.............................................................................................................................. 60

4.2.2.66. AT+MDCH.............................................................................................................................. 60

4.2.2.67. AT+TXPWR............................................................................................................................60

4.2.2.68. AT+LPTIO............................................................................................................................61

5. PACKAGE INFORMATION....................................................................................................................... 62

5.1. RECOMMENDED REFLOW PROFILE................................................................................................. 62

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5.2. DEVICE HANDLING INSTRUCTION (MODULE IC SMT PREPARATION)............................62

5.3. SHIPPING INFORMATION................................................................................................................63

APPENDIX A: HW REFERENCE DESIGN................................................................................................64

APPENDIX B: CONTROL GPIO/PWM FUNCTION WITH NETWORK COMMANDS.......................66

B.1 NETWORK COMMAND.............................................................................................................................. 66

B.2 HEXADECIMAL NETWORK COMMAND...............................................................................................69

APPENDIX C: HTTP PROTOCOL TRANSFER........................................................................................71

C.1. HTTP AT COMMAND............................................................................................................................71

C.1.1. AT+ HTTPURL............................................................................................................................71

C.1.2. AT+ HTTPTP.............................................................................................................................. 71

C.1.3. AT+ HTTPPH.............................................................................................................................. 71

C.1.4. AT+ HTTPCN.............................................................................................................................. 72

C.1.5. AT+ HTTPUA.............................................................................................................................. 72

C.1.6. AT+ HTTPDT.............................................................................................................................. 72

C.2. HTTP EXAMPLE...................................................................................................................................72

APPENDIX D: CONTACT INFORMATION................................................................................................74

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LIST OF FIGURES

Figure 1. USR-WIFI232-T Pins Map................................................................................................... 13

Figure 2. USR-WIFI232-T Mechanical Dimension.......................................................................15

Figure 3. USR-WIFI232-T External Antenna picture............................................................. 16

Figure 4. USR-WIFI232-T Evaluation Kit..................................................................................... 16

Figure 5. USR-WIFI232-T Hardware Typical Application................................................... 17

Figure 6. USR-WIFI232-T Smart LED Application Hardware Connection.................... 18

Figure 7. USR-WIFI232-T Basic Wireless Network Structure..........................................20

Figure 8. AP+STA Network Structure...............................................................................................21

Figure 9. Socket B function demo................................................................................................... 26

Figure 10. Multi-TCP Link Data Transmition Structure................................................... 26

Figure 11. Open Web Management page............................................................................................ 28

Figure 12. System Web Page..................................................................................................................29

Figure 13. Work Mode Page.................................................................................................................... 30

Figure 14. STA Setting Page............................................................................................................... 30

Figure 15. AP Setting Page..................................................................................................................31

Figure 16. Other Setting Page...........................................................................................................31

Figure 17. Account Page......................................................................................................................... 32

Figure 18. Upgrade SW page..................................................................................................................32

Figure 19. Restart Page......................................................................................................................... 33

Figure 20. Restore Page......................................................................................................................... 33

Figure 21. STA Interface Debug Connection..............................................................................34

Figure 22. AP Interface Debug Connection................................................................................ 34

Figure 23. “CommTools” Serial Debug Tools..............................................................................35

Figure 24. “TCPUDPDbg” Tools Create Connection..................................................................35

Figure 25. “TCPUDPDbg” Tools Setting..........................................................................................35

Figure 26. “TCPUDPDbg” Tools Connection...................................................................................36

Figure 27. Wireless Control Application...................................................................................36

Figure 28. Remote Management Application................................................................................ 37

Figure 29. Transparent Serial Port Application..................................................................37

Figure 30. USR-WIFI232-T Default UART Port Parameters................................................. 38

Figure 31. Switch to Configuration Mode...................................................................................38

Figure 32. ”AT+H” Instruction for Help..................................................................................... 39

Figure 33. Reflow Soldering Profile............................................................................................ 63

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LIST OF TABLES

Table 1 USR-WIFI232-T Module Technical Specifications....................................... 10

Table 2 USR-WIFI232-T Pins Definition..............................................................................12

Table 3 Absolute Maximum Ratings..........................................................................................13

Table 4 Power Supply & Power Consumption.......................................................................13

Table 5 USR-WIFI232-T External Antenna Parameters................................................. 15

Table 6 USR-WIFI232-T Evaluation Kit Interface Description........................... 15

Table 7 USR-WIFI232-T GPIO/PWM Pin Mapping Table................................................... 23

Table 8 USR-WIFI232-T Web Access Default Setting................................................... 25

Table 9 Error Code Describtion...............................................................................................37

Table 10 AT+ Instruction Set List..........................................................................................37

Table 11 Reflow Soldering Parameter..................................................................................... 60

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HISTORY

Ed. V1.0 08-01-2013 First Version.

Ed. V1.1 09-11-2013 Update AT command.

Ed. V1.2 10-12-2013 Update AT command. Update PWM/GPIO function. Add

HTTP protocol demo. Add auto-frame function.

Ed. V1.3 10-18-2013 Add nReload Pin wireless upgrade and config

description, add nLink Pin wireless upgrade indication description.

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1. PRODUCT OVERVIEW

1.1. General Description

The USR-WIFI232-T 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.USR-WIFI232-T

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.

The USR-WIFI232-T 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 USR-WIFI232-T integrates all Wi-Fi functionality into a low-profile,

23.1x32.8x 2.7mm SMT module package that can be easily mounted on main PCB

with application specific circuits. Also, module provides built-in antenna,

external antenna option.

1.1.1 Device Features

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

Support External IPEX or Pad Interface antenna connector options.

Support Dial Switch to Control Power

Support Max 3 Channel PWM Output

Compact surface mount module 22mm x 13.5mm x 6mm

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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1.1.2 Device Parameters

Table 1 USR-WIFI232-T Module Technical Specifications

Class Item Parameters

Wireless

Parameter

Certification FCC/CE

Wireless standard 802.11 b/g/n

Frequency range 2.412GHz-2.484GHz

Transmit Power

802.11b: +16 +/-2dBm (@11Mbps)

802.11g: +14 +/-2dBm (@54Mbps)

802.11n: +13 +/-2dBm (@HT20,

MCS7)

Receiver

Sensitivity

802.11b: -93 dBm (@11Mbps ,CCK)

802.11g: -85 dBm (@54Mbps,

OFDM)

802.11n: -82 dBm (@HT20, MCS7)

Antenna Option External:I-PEX Connector

External:Pad connector

Hardware

Parameter

Data Interface UART

PWM, GPIO

Operating Voltage 2.8~3.6V

Operating Current

Peak [Continuous TX]: ~200mA

Normal [WiFi ON/OFF,

DTIM=100ms]:

Average. ~12mA, Peak: 200mA

Standby [WiFi Shutdown]: <200uA

Power Down Switch: <10uA

Operating Temp. -40℃- 85℃

Storage Temp. -45℃- 125℃

Dimensions and

Size 22mm x 13.5mm x 6mm

External Interface 1x10, 2mm DIP

Software

Parameter

Network Type STA /AP/STA+AP

Security

Mechanisms WEP/WPA-PSK/WPA2-PSK

Encryption WEP64/WEP128/TKIP/AES

Update Firmware Local Wireless, Remote

Customization Web Page Upgrade

Network Protocol IPv4, IPv6,TCP/UDP/FTP/HTTP

User Configuration

AT+instruction set. Android/

iOS

Smart Link APP tools

1.1.3 Key Application

Remote equipment monitoring

Asset tracking and telemetry

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