$9.00 USD

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.
Qty available: 300 SKU:USR-WIFI232-A2
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 Structure of Serial UART WiFi Modules
Networking Mode of Embedded WiFi Modules
AP Mode
STA Mode
Image of Low Cost WiFi Modules USR-WIFI232-A2
Support PUSR Cloud
Wireless Parameters
Wireless Standard802.11 b/g/n
Frequency Range2.412GHz-2.484GHz
Transmit Power802.11b: +20dBm (Max.)
802.11g: +18dBm (Max.)
802.11n: +15dBm (Max.)
Receive Sensitivity802.11b: -89dBm
802.11g: -81dBm
802.11n: -71dBm
AntennaInternal: on-board antenna
Hardware Parameter
Data InterfaceUART: 300bps~460800bps
Ethernet: 10Mbps/100Mpbs
Working Voltage3.3V (+/-5%)
Working CurrentAP: 169mA (average), 305mA (peak)
STA: 164mA (average), 197mA (peak)
Working Temp.-40°C ~ 85°C
Storage Temp.-40°C- 125°C
Size25mm x 40mm x8mm
Software Parameter
Wireless Network TypeStation/AP mode
Security MechanismWEP/WPA-PSK/WPA2-PSK
Encryption TypeWEP64/WEP128/TKIP/AES
Work ModeTransparent transmission mode, serial command mode
Setting CommandAT+ instruction set
Network ProtocolTCP/UDP/ARP/ICMP/DHCP/DNS/https
Max. Client Number in TCP Server Mode32
User ConfigurationWeb server+AT command config
Client Application SoftwareClients can customize application software