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WiFi Module USR-WIFI232-A2


8 in stock (can be backordered)

Embedded WiFi Modules | Embedded wireless Device Servers


incl. GST

Availability: 8 in stock (can be backordered)

8 in stock (can be backordered)

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WiFi Module USR-WIFI232-A2 Introduction

WiFi Module 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 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

  • 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 of Embedded WiFi Module

  • USR-WiFi232-A2 has an Ethernet port with rate 100M.
  • Module can realize, mutual data transmission among WiFi, Serial and Ethernet.

Networking Mode of Embedded WiFi Module

  • AP Mode
  • STA Mode
  • AP + STA Mode


SKU: Module USR-WIFI232-A2 Categories: , ,
Wireless Parameters
Certification FCC/CE
Wireless Standard 802.11 b/g/n
Frequency Range 2.412GHz-2.484GHz
Transmit Power 802.11b: +20dBm (Max.)
802.11g: +18dBm (Max.)
802.11n: +15dBm (Max.)
Receive Sensitivity 802.11b: -89dBm
802.11g: -81dBm
802.11n: -71dBm
Antenna External:on-board antenna
Hardware Parameter
Data Interface UART: 300bps~460800bps
Ethernet: 10Mbps/100Mpbs
Working Voltage 3.3V (+/-5%)
Working Current AP: 169mA (average), 305mA (peak)
STA: 164mA (average), 197mA (peak)
Working Temp. -40°C ~ 85°C
Storage Temp. -40°C- 125°C
Size 25mm x 40mm x8mm
Software Parameter
Wireless Network Type Station/AP mode
Security Mechanism WEP/WPA-PSK/WPA2-PSK
Encryption Type WEP64/WEP128/TKIP/AES
Work Mode Transparent transmission mode, serial command mode
Setting Command AT+ instruction set
Network Protocol TCP/UDP/ARP/ICMP/DHCP/DNS/https
Max. Client Number in TCP Server Mode 32
User Configuration Web server+AT command config
Client Application Software Clients can customize application software



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