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WiFi Module USR-WIFI232-B2


Backorder (Delivery in 2-4 Weeks)

UART WiFi Modules | Serial to WiFi Modules


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WiFi Module USR-WIFI232-B2 Introduction

WiFi Module USR-WIFI232-B2 is an embedded 802.11 b/g/n UART WiFi module. It can connect traditional serial device and MCU controlled device with wifi network to realize control and management. The module has an Ethernet port. It can realize mutual data transmission among wifi, serial and Ethernet.

Features of UART WiFi Modules

  • 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.
  • External 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: 280 meters (open horizon, 3dbi antenna)

Application Field of UART 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.
SKU: Module USR-WIFI232-B2 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: I-PEX connector
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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