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Jinan USR IOT Technology WIFI232-A User Manual

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Remarks: This module is applicable to USR-WIFI232-A/B/C and its derivatives, for example USR-
WIFI232-2/610. For USR-WIFI232-G/T/S, please refer to the corresponding document.
Note: this article is based on the firmware version for V5.01.01 and above version of the module,
if the version is lower than this version, some function is not supported.
Jinan USR IOT Technology Limited
USR-WIFI232-A/B/C User Manual
USR-WIFI232-
USR-WIFI232-
USR-WIFI232-
USR-WIFI232-A/B/C
WiFi
WiFi
Module
Module
WiFi Module
Module User
Page 1 of 93
http://www.usriot.com
A/B/C
A/B/C
A/B/C
User
User
Manual
Manual
User Manual
Manual
Version：V5.0.8
tec@usr.cn

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Summary of Contents for Jinan USR IOT Technology WIFI232-A

  • Page 1 Manual Version：V5.0.8 Remarks: This module is applicable to USR-WIFI232-A/B/C and its derivatives, for example USR- WIFI232-2/610. For USR-WIFI232-G/T/S, please refer to the corresponding document. Note: this article is based on the firmware version for V5.01.01 and above version of the module, if the version is lower than this version, some function is not supported.

  • Page 2: Table Of Contents

    2.5.1 Recommended Reflow Profile..................12 2.5.2 Device Handling Instruction (Module IC SMT Preparation)........12 2.5.3 Shipping Information......................13 3 Hardware Introduction..........................13 3.1 Pins Definition..........................13 3.1.1 USR-WIFI232-A/B Pins Definition.................. 13 3.1.2 USR-WIFI232-Ca/Cb Pins Definition................15 3.2 Mechanical Size........................... 16 3.2.1 USR-WIFI232-A/B......................16 3.2.2 USR-WIFI232-Ca/Cb......................17 3.3 Antenna............................18...
  • Page 3 USR-WIFI232-A/B/C User Manual http://www.usriot.com 4.4.1 USR-WIFI232-A/B/C Ethernet Interface Networking (As AP)........32 4.4.2 USR-WIFI232-A/B/C Ethernet Interface Networking (As STA, N-Ver)......33 4.4.3 USR-WIFI232-A/B/C Ethernet Interface Networking (As STA, Z-Ver)...... 34 4.5 WI-FI parameter setting.......................34 4.5.1 Auto- Frequency Function....................34 4.5.2 Security..........................34 4.5.3 Search Function for STA....................35...
  • Page 4 5.2.2.2.33 AT+STTC....................67 5.2.2.2.34 AT+DOMAIN..................... 67 5.2.2.2.35 AT+FUDLX....................67 5.2.2.2.36 AT+MMID....................68 5.2.2.2.37 AT+IDFIR....................68 5.2.2.2.38 AT+IDEVE....................68 5.2.2.2.39 AT+AABR....................69 5.2.2.2.40 AT+RELD....................69 5.2.2.2.41 AT+Z......................69 5.2.2.2.42 AT+MID...................... 69 5.2.2.2.43 AT+VER..................... 69 Page 4 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 5 Q5: How to configure transparent serial port application: Two WIFI modules all configured as STA and connection through AP?.....................86 Q6: How to avoid IP address confliction when apply USR-WIFI232-A/B/C module?....87 Q7: PC works as server, all WIFI modules works as data acquisition card and connect with PC, how to configure this application?....................
  • Page 6 Q9:WIFI module operates in STA mode, the PC how to get the IP module?......88 Appendix b: evb reference design......................90 Appendix c: external power shutdown mode reference design............91 Appendix e: Contact Information......................92 Appendix f: Disclaimer..........................92 Appendix g: History............................ 93 Page 6 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 7: Quick Start

    About the serial connection, because the module RS232 is 3.3V TTL level, the computer can not connect to module directly, the user needs to have a TTL to RS232 adapter cable and then connect to the computer. in order to facilitate the test, we provide USR-WIFI232-A/B/C evaluation board for users to choose.
  • Page 8 Network connection connection The following is the USR-WIFI232-A module example,Other modules are the same.Open Wi-Fi, search network, as shown in below, USR-WIFI232-A/B_3378(A/B determined according to the specific type of module, XXXX is the MAC address after the four) is the default network name (SSID) of the module.

  • Page 9: Communication Test

    USR-WIFI232-A/B/C User Manual http://www.usriot.com Figure 3 WIFI WIFI connection WIFI WIFI connection connection connection Now, nlink led of USR-WIFI232-A Evaluation Board is lighting. communication communication test test 1.3 communication communication test test Module’s default setting: � SSID: SSID: SSID: SSID:USR-WIFI232-A;...

  • Page 10: General Description

    These data fields, do a professional optimization. USR-WIFI232-A/B/C as a hot spot can accommodate 32 clients simultaneously wi-fi access, but also can accommodate 32 TCP client, specific models and parameters of the series modules are...

  • Page 11: Device Paremeters

    FCC/CE FCC/CE FCC/CE FCC/CE Certificated Certificated Certificated Certificated Device Device Paremeters Paremeters 2.3 Device Device Paremeters Paremeters Table 1 USR-WIFI232-A/B/C Module Technical Specifications Class Class Item Item Parameters Parameters Class Class Item Item Parameters Parameters Certification FCC/CE Wireless standard 802.11 b/g/n Frequency range 2.412GHz-2.484GHz...

  • Page 12: Package Information

    Case 2: Wifi module mounted on bottom side, follow normal bake rule before process. Note: Window time means from last bake end to next reflow start that has 168 hours space. Page 12 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 13: Shipping Information

    3 3 3 3 Hardware Hardware Hardware Introduction Introduction Hardware Introduction Introduction Pins Pins Definition Definition 3.1 Pins Pins Definition Definition 3.1.1 USR-WIFI232-A/B Pins Definition Figure 7 USR-WIFI232- USR-WIFI232- USR-WIFI232- USR-WIFI232-A/B Page 13 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 14 U A R T_R X D/G P I O4 G N D 3.3V Figure 8 USR-WIFI232- USR-WIFI232- USR-WIFI232- Pins Pins USR-WIFI232-A/B A/B Pins Pins Map Table 3 USR-WIFI232-A/B Pins Definition Description Description Description Description Name Name Name Name Directi Directi...

  • Page 15: Usr-Wifi232-Ca/Cb Pins Definition

    Table 4 USR-WIFI232-Ca/Cb Pins Definition Description Name Directi Note 3,18,19, Power Ground 20,24,26 1, 2 3.3V Power 3.3V @ 350mA power input UART Data Transmit UART_TXD UART function, this 4 pins GPIO GPIO3 Page 15 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 16: Mechanical Size

    2.4GHz Antenna 50ohm impedance control line 12,13 Retain Mechanical Mechanical Size Size 3.2 Mechanical Mechanical Size Size USR-WIFI232-A/B/C modules physical size (25x40mm) as follows: 3.2.1 USR-WIFI232-A/B USR-WIFI232-A/B module Mechanical Size: Page 16 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 17: Usr-Wifi232-Ca/Cb

    Mechanical Mechanical Mechanical Size Size Size Size 3.2.2 USR-WIFI232-Ca/Cb USR-WIFI232-Ca/Cb module Mechanical Dimension: Figure 12 USR-WIFI232- Ca/Cb Mechanical Dimension USR-WIFI232- USR-WIFI232- USR-WIFI232-Ca/Cb Ca/Cb Ca/Cb Mechanical Mechanical Mechanical Dimension Dimension Dimension Page 17 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 18: Antenna

    Out Region Region USR technological suggestions USR-WIFI232-A/B/C module be placed in the following areas of user board, in order to reduce the antenna and a wireless signal influence, at the same time, please consult with technology and technical support staff to assist module placement and associated regions of Layout design.

  • Page 19: Evaluation Kit

    USR provides the evaluation kit to promote user to familiar the product and develop the detailed application. The evaluation kit shown as below, user can connect to USR-WIFI232-A/B/C module with the RS-232 UART port, 100M Eth port or Wireless port to configure the parameters, manage the module or do the some functional tests.
  • Page 20 Reload Module restore to factory default configuration. Figure 16 USR-WIFI232-Ca/Cb USR-WIFI232-Ca/Cb USR-WIFI232-Ca/Cb USR-WIFI232-Ca/Cb module module module module Evaluation Evaluation Evaluation Evaluation Kit Table 7 USR-WIFI232-Ca/Cb module Evaluation Kit Interface Description Page 20 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 21: Hardware Reference Design

    There is 100K Ohm pull-up resister internal up to 3.3V. When module power up or some issue happened, MCU need assert nRST signal “0” at least 300ms, then set” 1” to keep module fully reset. Page 21 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 22: 10/100M Ethernet Interface

    User board put Ethernet transformer and RJ-45 connector. This is a general 10/100M Ethernet phy layer connection. The reference design as following: (Above is for USR-WIFI232-A/B pin type module, Below is for SMD type USR-WIFI232-C) Page 22 of 93 Jinan USR IOT Technology Limited...

  • Page 23: Ethernet Connection Without Transformer

    Note: VCC signal at reference design shall base on user board PHY chipset voltage level, such as 2.5V power supply for general Ethernet PHY chipset. (Above is for USR-WIFI232-A/B pin type module, Below is for SMD type USR-WIFI232-C) Page 23 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 24 2. Cable TX connected to RX. In PHY-PHY direct connection, PHY chip dose not support direct/ cross self-adaption 3.Your PHY chip on board should better to be forced into 100M work mode Page 24 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 25: Uart Interface

    USR-WIFI232-A/B/C User Manual http://www.usriot.com 3.5.3 UART Interface UART interface is the serial data transmition interface mainly used for USR-WIFI232-A/B/C modules. User can add RS-232 chipset on user board and convert the signal to RS-232 voltage to communicate with outside equipment or sensors. USR-WIFI232-A/B/C modules UART interface include 4 general signals: TXD/RXD/RTS/CTS.

  • Page 26: User Configuration Process

    User configuration configuration process process After USR-WIFI232-A/B/C module electric starter, based on user pre-set parameters, automatically connect to wireless networks and servers, and enter the working mode is set to open in accordance with the default serial port parameters. The parameters which need to configure include: �...

  • Page 27: Serial Command Mode

    5, said to wait for the 5S to disconnect; if the sending command, immediately receive the returned data, then immediately disconnected; if it is long connection, this position is 0x00. � Second byte:Reserve Page 27 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 28: Gpio Mode

    Data:0x01(data length :1) Sum check:0x0f (0x00+0x00+0x00+0x21+0x00+0x85+0x00+0xA8+0xC0+0x01=0x0f) 4.2.3 GPIO mode USR-WIFI232-A/B/C module support GPIO mode:At GPIO,UART (TXD/ RXD/CTS/RTS) defined as GPIO and others (Ready/Link/) also defined as GPIO pin. When module works at GPIO mode, PC and other equipments can setup connection (TCP/UDP) through WiFi, then read/write GPIO information through command.

  • Page 29: Wireless Networking

    USR-WIFI232-A/B/C module can be configured as both wireless STA and AP base on network type. Logically there are two interfaces in USR-WIFI232-A/B/C. One is for STA, and another is for AP. When USR-WIFI232-A/B/C works as AP, other STA equipments are able to connect to wireless LAN via USR-WIFI232-A/B/C module.

  • Page 30: Sta

    Structure 4.3.2 AP Because USR-WIFI232-A/B/C can be set to AP, can also be set to STA, so the USR-WIFI232- A/B/C can be achieved easily wireless ad hoc network. As showing in the figure below, USR-WIFI232-A/B/C (1) can be treat as an AP, and USR- WIFI232-A/B/C (2), USR-WIFI232-A/B/C (3) and the laptop are STAs connected to USR- WIFI232-A/B/C (1).

  • Page 31: Ap+Sta

    Network Structure Structure Structure 4.3.3 AP+STA USR-WIFI232-A/B/C module support AP+STA network mode, means module support one AP interface and one STA interface at the same time, as following figure, U s e r D e v i c e U A R T...

  • Page 32: Ethernet Interface Communication

    USR-WIFI232-A/B/C module provides one 100M Ethernet interface. With this Ethernet interface, user can easily realize the three interface (WiFi, UART, and Ethernet) intercommunication and networking. USR-WIFI232-A/B/C module can configured as Bridge Mode or Router Mode base on different networking technology.

  • Page 33: Usr-Wifi232-A/B/C Ethernet Interface Networking (As Sta, N-Ver)

    Interface Networking Networking (As (As AP) USR-WIFI232-A/B/C module works as AP and also the center of this network. All devices’ IP address in this network shall use the same network segment with USR-WIFI232-A/B/C and they can ntercommunication with this method.

  • Page 34: Usr-Wifi232-A/B/C Ethernet Interface Networking (As Sta, Z-Ver)

    4.5.1 Auto- Frequency Function When module works as STA, USR-WIFI232-A/B/C will adjust its wireless channel to keep the same channel with associated AP and connect in. When module works as AP and USR-WIFI232-A/B/C enable Auto-frequency function, then when module boot up, it will select the best wireless channel based on surrounding environment.

  • Page 35: Search Function For Sta

    UART data. If this interval time exceeds defined value (50ms default), USR-WIFI232-A/B/C will think it as the end of one frame and transfer this free-frame to WiFi port, or USR-WIFI232-A/B/C will receive UART data until 4K bytes, then transfer 4KB frame to WiFi port.

  • Page 36: Uart Auto-Frame

    Network Setting Setting USR-WIFI232-A/B/C module has two TCP/UDP Socket: Socket A and Socket B. Serial data written to the module, will be sent to the Socket A and B simultaneously; TCP/UDP data that module receives through either Socket A or B,will be sent to the serial port.

  • Page 37: Socket B

    ID/MAC in front of each data. Registered Package related parameter is set in the "serial port and other Settings" section of the Page 37 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 38: Self-Adaption Baudrate

    100, the module will not switch network.Even if the current network signal is not the current network will always search, not heavy to other networks. The function of the specific Settings page refer to section 5.1.4. Page 38 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 39: Websocket

    Sum of data bytes from length bytes to check byte(not contain length bytes and check byte). Command type, 0x01 check Sum of bytes from head (not contained) byte to Page 39 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 40 Check for If the SSID set by PDA exist, check value is 0x01, SSID otherwise is 0x00. Check for 1 If the form of password set by PDA is correct, check Page 40 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 41: Palmodic Signal

    Web accessing means users can configure parameters through built-in webpage. When USR- WIFI232-A/B/C module connected to wireless network, parameters configuration is done on a PC connected to the same wireless network. AT+instruction set configuration means user configure parameters through serial interface command. Refer to “AT+instruction set” chapter for more detail.

  • Page 42: Firmware Upgrade

    USR-WIFI232-A/B/C User Manual http://www.usriot.com 4.11 4.11 Firmware Firmware Upgrade Upgrade 4.11 4.11 Firmware Firmware Upgrade Upgrade USR-WIFI232-A/B/C module supports firmware upgrade online. Page 42 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 43: Web Accessing And At+Instruction Set

    Web Web Accessing Accessing When first use USR-WIFI232-A/B/C modules, user may need some configuration. User can connect to USR-WIFI232-A/B/C module’s wireless interface with following default setting information and configure the module through laptop. Table 9 USR-WIFI232-A/B/C Web Access Default Setting...

  • Page 44: Quick Configure

    This page use to setting the wireless networking mode (AP and STA mode). "Data transmission mode" selection module working mode are "Transparent Mode", "Serial Command mode", "HTTPD Client mode", "GPIO mode". "TCP connection password authentication" can choose whether open TCP password authentication. Page 44 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 45: Ap Interface Setting Page

    Selection Selection Page Page Mode Mode Selection Selection Page Page 5.1.4 AP Interface Setting Page This page use to setting the parameters when USR-WIFI232-A/B/C module works as AP. Figure 36 AP Interface Interface Interface Interface Setting Setting Setting Setting Page...

  • Page 46: Application Setting Page

    This page use to setting the parameters of serial port communication, such as UART setting,UART AutoFrame Setting,Ethernet function,Device ID setting and high layer network protocol setting which used support serial communication. Page 46 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 47: Ethernet Setting

    Besides module working as TCP Server (IP address not required in this mode). User must set the IP address of the device which need communicate with USR-WIFI232-A/B/C module. Also the Port ID between two sides of the communication devices must keep the same.

  • Page 48: Httpd Client Mode

    HTTPD HTTPD Client Client Mode Mode Page Page HTTPD HTTPD Client Client Mode Mode Page Page 5.1.9 WEB IO Figure 41 WEB IO IO IO IO Page Page Page Page Page 48 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 49: Advanced Page

    Setting Page Page 5.1.11 Device Management Page This page use to manage USR-WIFI232-A/B/C module general setting, such as administrator setting, restart module button, restore factory default setting button, and update firmware through webpage. Page 49 of 93 Jinan USR IOT Technology Limited...

  • Page 50: At+Instruction Introduction

    Introduction Introduction Introduction 5.2.1 Configuration Mode When USR-WIFI232-A/B/C power up, it will default works as transparent transmission mode, then user can switch to configuration mode by serial port command. USR-WIFI232-A/B/C UART default parameters setting as below figure Figure 44 USR-WIFI232-A/B/C...

  • Page 51: Switch To Configuration Mode

    User can input AT+ Instruction through hyper terminal or other serial debug terminal, also can program the AT+ Instruction to script. User can also input “AT+H” to list all AT+ Instruction and description to start. Page 51 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 52 Click “Open Com”, send “+++a”, it will reply +ok in left side, then type in and send the command you need to send, then click “AT+RELD” to restore, then parameters saved. Page 52 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 53: Instruction Syntax Format

    Description Description � < >: Means the parts must be included � [ ]: Means the optional part � � � � Command Command Message Message Command Command Message Message Page 53 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 54: At+ Instruction Set

    <CR>: ASCII 0x0d; � <LF>: ASCIII 0x0a; � � � � Error Error Code Code Error Error Code Code Table 10 Error Code Description USR-WIFI232-A/B/C Web Access Default Setting Error Error Code Code Description Description Error Error Code Code Description...
  • Page 55 Under the new mode,Settings/query server and IP address(HTTPD HTPSV Client) Under the new mode,Settings/query request type(HTTPD Client) HTPTP Under the new mode,setting/query request path(HTTPD Client) HTPURL HTPHEAD Under the new mode,Settings/query the HTTP header(HTTPD Page 55 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 56: At+E

    Settings/query Device ID REGID Notes: Notes: Notes: Notes: USR-WIFI232-A/B/C module can works as AP or STA, user have to use different AT+ Instruction to set WiFi parameters when module works as AP or STA mode. 5.2.2.2.1 5.2.2.2.1 5.2.2.2.1 5.2.2.2.1 AT+E...

  • Page 57: At+Uart

    USR-WIFI232-A/B/C User Manual http://www.usriot.com � IP: Server’s IP address when module set as client After USR-WIFI232-A/B/C module boots up again, the setting will be effective. 5.2.2.2.4 AT+UART 5.2.2.2.4 5.2.2.2.4 5.2.2.2.4 AT+UART AT+UART AT+UART � Function: Set/Query serial port parameters; �...

  • Page 58: At+Uartfl

    � Httpdclient : Httpd Client Mode � GPIO: GPIO Mode After USR-WIFI232-A/B/C module boots up again, the setting will be effective. Note: No CMD.After power on, the module will not work in the AT command mode by default. 5.2.2.2.9 5.2.2.2.9...

  • Page 59: At+Wskey

    USR-WIFI232-A/B/C User Manual http://www.usriot.com � mode:WIFI work mode � � After USR-WIFI232-A/B/C module boots up again, the setting will be effective. 5.2.2.2.10 5.2.2.2.10 5.2.2.2.10 5.2.2.2.10 AT+WSKEY AT+WSKEY AT+WSKEY AT+WSKEY � Function: Set/Query WIFI security parameters as STA; � Format: �...

  • Page 60: At+Webu

    ”AP’ SSID（AP’s MAC” ）, if WiFi connection available; � � ”RF Off”, if WiFi OFF; This Instruction only effective for USR-WIFI232-A/B/C works as STA. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as AP. 5.2.2.2.13 5.2.2.2.13...

  • Page 61: At+Wakey

    USR-WIFI232-A/B/C User Manual http://www.usriot.com This Instruction only effective for USR-WIFI232-A/B/C works as AP. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as STA. 5.2.2.2.15 5.2.2.2.15 5.2.2.2.15 5.2.2.2.15 AT+WAKEY...

  • Page 62: At+Mslp

    TCP link not setup; 5.2.2.2.20 5.2.2.2.20 5.2.2.2.20 5.2.2.2.20 AT + + + + TCPDIS TCPDIS TCPDIS TCPDIS � Function: Open/Cose TCP (Only TCP Client available); � Format: � Query Operation Page 62 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 63: At+ Wann

    WAN port subnet mask; � gateway: WAN port gateway address; This Instruction only effective for USR-WIFI232-A/B/C works as STA. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as AP.

  • Page 64: At+Dhcpden

    USR-WIFI232-A/B/C User Manual http://www.usriot.com This Instruction only effective for USR-WIFI232-A/B/C works as AP. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as STA. Note: AT+WANN check the wan port address of module, AT+LANN check the LAN port address of module, and the two IP cannot be set on the same network segment,If do,Module will be abnormal.

  • Page 65: At+ Maxsk

    LF > > > > � Parameters: � num: 1~32, default 32. maxima TCP connection; When configure as TCP/Server, USR-WIFI232-A/B/C support maxima 32 TCP connections. If not require so much connection, user can resetting this parameters. 5.2.2.2.27 5.2.2.2.27 AT+TCPB AT+TCPB 5.2.2.2.27...

  • Page 66: At+Tcpaddb

    USR-WIFI232-A/B/C User Manual http://www.usriot.com After USR-WIFI232-A/B/C module boots up again, the setting will be effective. 5.2.2.2.29 AT+TCPADDB 5.2.2.2.29 5.2.2.2.29 5.2.2.2.29 AT+TCPADDB AT+TCPADDB AT+TCPADDB � Function: Set/Query TCPB server address; � Format: � Query Operation AT+TCPADDB<CR> AT+TCPADDB<CR> AT+TCPADDB<CR> AT+TCPADDB<CR> +ok=<add><CR>< +ok=<add><CR><...

  • Page 67: At+Sttc

    Close module’s Ethernet port function can reduce the power consumption. The default setting for USR-WIFI232-A/B/C is close Ethernet port function. Use AT + FVEW = disable/enable, so you can set the modules work in LAN port (disable) or wan port (enable), the directive restore factory Settings to take effect.

  • Page 68: At+Mmid

    ><CR>< LF > > > > +ok<CR>< +ok<CR>< LF LF ><CR>< ><CR>< LF � Parameters: � ID: device id(0~65535) After USR-WIFI232-A/B/C module boots up again, the setting will be effective. 5.2.2.2.37 5.2.2.2.37 5.2.2.2.37 5.2.2.2.37 AT+IDFIR AT+IDFIR AT+IDFIR AT+IDFIR � Function: Enable/Disable “Send an ID when module connection is established” function;...

  • Page 69: At+Aabr

    LF > > > > +ok=<ver><CR>< +ok=<ver><CR>< +ok=<ver><CR>< LF LF ><CR>< ><CR>< ><CR>< LF � Parameters: � ver: Module software version information; 5.2.2.2.44 5.2.2.2.44 5.2.2.2.44 5.2.2.2.44 AT+H AT+H AT+H AT+H � Function: Help; Page 69 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 70: At+ Httpurl

    � Parameters: � Path: Max length is 50 bytes. 5.2.2.2.48 5.2.2.2.48 5.2.2.2.48 5.2.2.2.48 AT+ HTTPCN HTTPCN HTTPCN HTTPCN � Function:Set/Query Connection of HTTP protocol header. � Format: � Query Operation: Page 70 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 71: At+ Httpua

    � Parameters: � ap’s ssid: AP’s SSID This Instruction only effective for USR-WIFI232-A/B/C works as STA. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as AP. 5.2.2.2.51 5.2.2.2.51 5.2.2.2.51...

  • Page 72: At+Wsssidc

    USR-WIFI232-A/B/C User Manual http://www.usriot.com This Instruction only effective for USR-WIFI232-A/B/C works as STA. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as AP. 5.2.2.2.52 5.2.2.2.52 5.2.2.2.52 5.2.2.2.52 AT+WSSSID...

  • Page 73: At+Wskeyc

    ASCII code, shall less than 64 bit and greater than 8bit This Instruction only effective for USR-WIFI232-A/B/C works as STA. After USR-WIFI232-A/B/C module boots up again, the setting will be effective. But user can set this command when module configured as AP.

  • Page 74: At+ Wsqy

    IP:HTTP server IP address. � Port:HTTP server Port number。 5.2.2.2.59 5.2.2.2.59 5.2.2.2.59 5.2.2.2.59 AT+ HTPTP HTPTP HTPTP HTPTP � Function:Set /Query HTTP request type. � Format: � Query Operation: AT+HTPTP<CR> AT+HTPTP<CR> AT+HTPTP<CR> AT+HTPTP<CR> Page 74 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 75: At+ Htpurl

    LF > > > > +ok<CR>< +ok<CR>< +ok<CR>< LF LF ><CR>< ><CR>< ><CR>< LF � Parameters: � mode: � id: Registered package of ID. � mac: Registered package of MAC. Page 75 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 76: At+ Regtcp

    � ID: ID number, the range is 0 to 65535 Note: the AT command of AT + REDEN, AT + REGTCP, AT + REGID is supported in V5.01.14 and above version. 6 6 6 6 USR-WIFI232-A/B/C USR-WIFI232-A/B/C USR-WIFI232-A/B/C Usage Usage...

  • Page 77: Network Connection

    ( internal system boot ), Ready lights, said system startup complete, can operate, entering the next step. 6.1.3 Debug As shown above, opened in PC program, set the COM export and open the serial port connection Page 77 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 78 TCP connection,Then click the create connection. Figure 52 “ “ “ “ TCP Dbg” ” ” ” Tools Tools Tools Create Create Connection Connection TCP UDP UDPDbg Tools Create Create Connection Connection Page 78 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 79: Use Cases

    USR-WIFI232-A/B/C User Manual http://www.usriot.com Because of the USR-WIFI232-A/B/C module default support for transparent transmission mode, so now you can debug tools two-way data, all data will be wholly intact transmission to the other side of display. The testing process can be seen in module TXD and RXD indicator lights in the data through the flashing.

  • Page 80: Remote Management Application

    Application Application For this wireless control application, USR-WIFI232-A/B/C works as AP mode. Module’s serial port connects to user device. So, control agent (Smart phone for this example) can manage and control the user device through the wireless connection with USR-WIFI232-A/B/C module.

  • Page 81: Wireless Data Acquisition Card Application

    Port Application Application For left side USR-WIFI232-A/B/C module, configured as AP mode and use default SSID and IP address, network protocol configured as TCP/Server mode, and protocol port ID: 8899. For right side USR-WIFI232-A/B/C module, configured as STA mode and setting the same SSID （...
  • Page 82 Application Application As above figure, one USR-WIFI232-A/B/C configured as AP mode and all others configured as STA mode. All USR-WIFI232-A/B/C which configured as STA and data server PC wireless connected to USR-WIFI232-A/B/C which configured as AP to make up a wires network.

  • Page 83: Appendix A: Questions And Answers

    L A N I P :1 0.1 0.9 9.2 5 4 Figure 58 Configure Configure Configure Configure Transparent Transparent Transparent Transparent Serial Serial Serial Serial Port Port Port Port Connection Connection Connection Connection (TCP) (TCP) (TCP) (TCP) Page 83 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

  • Page 84: Q2: Where To Set Wifi Module Lan Ip And Wan Ip Through Web

    WIFI Module Module LAN and WAN through Web Page Page Page Page？ � USR-WIFI232-A/B/C Wireless LAN IP address setting see “AP Interface Setting Page” as below Figure, Figure 59 Module Module Module Module LAN LAN IP IP IP IP Setting Setting...

  • Page 85: Q4: Where To Set Usr-Wifi232-A/B/C Module Network Protocol (Tcp/Udp)

    USR-WIFI232-A/B/C USR-WIFI232-A/B/C USR-WIFI232-A/B/C USR-WIFI232-A/B/C (TCP/UDP)? (TCP/UDP)? (TCP/UDP)? (TCP/UDP)? � USR-WIFI232-A/B/C network protocol setting see “Application Setting Page” as below Figure, � Protocol: TCP Server � Only Port ID required: 8899 (Default) Figure 62 Module Module Module Module Network Network...

  • Page 86: Modules

    AP? � Network structure as below figure: � Module 1# Setting: ( We use USR-WIFI232-A/B/C as AP for this example) � Works as AP mode and all default setting; � Module 2# Setting: � Works as STA mode;...

  • Page 87: Q6: How To Avoid Ip Address Confliction When Apply Usr-Wifi232-A/B/C Module

    � Network structure as below figure: Three USR-WIFI232-A/B/C module setup 3 TCP links with PC server. Module 1# works as AP and all devices connect to module 1# through WiFi interface; � PC Setting: � IP address: 10.10.100.100;...

  • Page 88: Q8: Wifi Module Support Udp Multicast

    PC PC how get the module? module? module? module? All wifi module supports UDP search,they will return to their respective IP, MAC, MID, detailed search process is as follows: Page 88 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 89 Port: 48899) sends local IP address and MAC address and name of the module. (IP, MAC, MID as 10.10.100.254,888 B5D0000E2, guxin). So you can get to the IP address of the module. Page 89 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 90 USR-WIFI232-A/B/C User Manual http://www.usriot.com Appendix Appendix Appendix b: b: b: b: evb reference reference design design Appendix evb reference reference design design Page 90 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 91 Appendix c c c c : : : : external external external power power shutdown shutdown mode mode Appendix external power power shutdown shutdown mode mode reference reference design design reference reference design design Page 91 of 93 Jinan USR IOT Technology Limited tec@usr.cn...
  • Page 92 USR-WIFI232- USR-WIFI232- USR-WIFI232- USR-WIFI232-A A A A / / / / B B B B / / / / C C C C modules, modules, modules, modules, this this this this document document...
  • Page 93 When tcp or udp server,Tip 80, 8000, 49000 is not available. Ed.V5.0.8 Update on 16-06-2015 Increase customer support center link, remove WAPI encryption. DOCUMENT DOCUMENT END OF OF DOCUMENT DOCUMENT Page 93 of 93 Jinan USR IOT Technology Limited tec@usr.cn...

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