Introduction of Embedded WiFi Modules USR-WIFI232-A2

USR-WIFI232-A2 are low cost embedded 802.11 b/g/n WiFi modules which can convert UART(3.3V TTL) to WiFi or Ethernet. Embedded WiFi modules USR-WIFI232-A2 support AP(access point) mode and STA (WiFi client) mode. User can use this embedded module to realize their WiFi application speedy.


Features of Cost-effective WiFi Modules USR-WIFI232-A2

Support 802.11b/g/n wireless standard

Support TCP/IP/UDP network protocol

Support UART/GPIO/Ethernet data interface

Support work as STA/AP/AP+STA mode

Support router and bridge mode

Internal antenna

Support transparent transmission mode

Provide AT+ instruction set for configuration

Provide friendly web configuration page

Support heartbeat signal and wifi connection indication

Support UART auto-frame function

3.3V power supply

Max transmission distance: 200 meters (open horizon)


Application Field of Embedded WiFi Modules USR-WIFI232-A2 

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


Function Chart of Embedded WiFi Modules

Function Chart of Serial UART WiFi Modules, which can realize mutual data transmission among wifi, serial and ethernet


Function Structure of Serial UART WiFi Modules

Function Structure of Serial UART WiFi Modules


Networking Mode of Embedded WiFi Modules

AP Mode

AP Networking Mode of WiFi Modules


STA Mode

STA Mode of WiFi Modules



AP+STA Mode of WiFi Modules


Image of Low Cost WiFi Modules USR-WIFI232-A2

images of serial UART WiFi Modules