USR-WIFI232-200-V2 is a RS232 Wireless Device Server, used for data transparent transmission.

• 1 RS232 serial port




• Low Voltage Range of 5-9v DC




• Small size for easy installation

Introduction of RS232 to WiFi Converters

The RS232 to WiFi Converters, used for data transparent transmission. USR-WIFI232-200-V2 can connect with serial device for data transmission. It can send data from rs232 to WIFI in TCP client,TCP server and UDP mode.

Features of RS232 to WiFi Converters

• WIFI 2.4 GHz, support WEP, WPA/WPA2 security mode.

• Self-developed MCU platform

• The fully integrated serial to wifi function

• Support multiple network protocols and WiFi connection configuration

• Support work as STA/AP mode

• Support SmartLink intelligent networking function (APP provided)

• Support UsrLink function (fast set SSID)

• Upgrade firmware via wifi network

• Support external antenna (I-PEX connector)

• Support AT+ command set configuration

• Support low power real-time operating system and driver

• CE/FCC/RoHS certificated

Application field of RS232 to WiFi Converters

• WiFi remote control and monitoring, TCP/IP and WiFi coprocessor

• WiFi remote control toy such as aircraft and cars

• WiFi Internet radio, camera, digital photo frame

• Medical instrument, data acquisition, handheld device

• WiFi fatness testing machine, smart card terminal, Smart Home

• Instrument, equipment parameter monitoring, wireless POS machine

• Modern agriculture, military field and other wireless related secondary development applications

Networking mode of RS232 to WiFi Converters

1.AP Mode

2.STA Mode

3.AP+STA Mode

Simple Transparent transmission

Transparent transmission means that whatever is transferred, our device plays the role of a channel and sends data to the target without modification. On-site monitoring equipment sends data to Wireless Device Servers transparent data transmission terminal by itself port, the terminal CUP receives data by serial port and package data.

Various parameter setting method

Software Settings
Download settings software, search Wireless Device Servers in the LAN through the serial port server IP, name, MAC address, or the version number. Then set the parameters you need, otherwise keep the default.
Web-page Settings

1. Open your browser and inter the default IP address of the Wireless Device Servers.

2. Open the login page of Serial Server, Enter the user name and password (default admin).

3. After setting parameter, Click “Save“ and “Restart“, then setting will take effect.

Serial AT commands Settings
User can set parameter by module itself without going through another computer to configure. This setting method is used in the following situation: user have to configure IP address and destination IP address on site. AT command can meet the demand. After MCU connects serial server module by TTL (UART), MCU can configure setting by AT command.