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Home / Products / Discontinued Items / USR-WIFI232-T
Home / Products/ Discontinued Items / USR-WIFI232-T
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Note: Product has been discontinued, new alternatives please click: /p/iot-wifi-modules/


Introduction of Wireless WiFi Modules

The Wireless WiFi Modules, used for data transparent transmission. USR-WIFI232-T wifi module can connect with serial device for data transmission. It can send data from UART to WIFI in TCP client, TCP server and UDP mode.


Features of Wireless WiFi Modules

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 multiple PWM signal output channel

Support AT+ command set configuration

Tiny Size: 22mm x 13.5mm x 6mm

Single +3.3V power supply

Support low power real-time operating system and driver

CE/FCC/RoHS certificated


Application field of Wireless WiFi Modules

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


Various parameter setting method

Software Settings
Download settings software, search WiFi Modules 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 WiFi Modules.

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.


Optimized low power wifi modules

Low power wifi modules are integrated 802.11b / g / n low-power embedded wifi modules.
It provides a solution to connect the physical device to wifi wireless network and transfer data by UART interface. It is widely used in those fields which need to transfer data with low flow and low frequency. e.g: smart home, smart electricity, medical monitoring, industrial control.


Remote connection application of Wireless WiFi Modules

Remote connection application of Wireless WiFi Modules


More images of Wireless WiFi Modules

More images of Wireless WiFi Modules

Wireless Parameters  
Certification FCC/CE/RoHS
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)
Receive Sensitivity 802.11b: -93 dBm (@11Mbps ,CCK)
802.11g: -85 dBm (@54Mbps, OFDM)
802.11n: -82 dBm (@HT20, MCS7)
Antenna External: I-PEX connector
Hardware Parameters  
Data Interface UART, PWM, GPIO
Operating Voltage 3.0~3.6V
Operating Current Continuous TX: ~200mA
Normal Mode Average: ~12mA, Peak: 200mA
Operating Temp. -40°C ~ 85°C
Storage Temp. -45°C- 125°C
Size 22mm x 13.5mm x 6mm
External Interface Pin Type
Software Parameters  
Wireless Network Type STA/AP
Security Mechanism WEP/WPA-PSK/WPA2-PSK
Encryption Type WEP64/WEP128/TKIP/AES
Update Firmware Local WiFi
Network Protocol IPv4, TCP/UDP/FTP/https
User Configuration AT+ command
Android/IOS APP
Smart Link APP


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