USR-WIFI232-B2 M2M WiFi Module, External Antenna
USR-WIFI232-B2 is an embedded 802.11 b/g/n M2M wifi module, with External Antenna. It can connect traditional serial device and MCU controlled device with wifi network to realize control and management.
- 1 TTL Serial Ports Supporting Data Rates of up to 460.8Kbps
- 580MHz Frequency
- 32 simultaneous client connections to Soft AP interface
- External antenna
Introduction of M2M Wifi Modules
USR-WIFI232-B2 is an embedded 802.11 b/g/n 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 M2M 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 M2M 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 Chart of M2M WiFi Modules
Function Structure of M2M WiFi Modules
Networking Mode of M2M WiFi Modules
AP Mode
STA Mode
AP + STA Mode
Image of M2M WiFi Module
Specifications
| Parameter | Value |
|---|---|
| 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.) Configurable |
| Receive Sensitivity | 802.11b: -89dBm 802.11g: -81dBm 802.11n: -71dBm |
| Antenna | External: I-PEX connector |
| Hardware Parameter | #colspan# |
| Data Interface | UART: 300bps~460800bps Ethernet: 10Mbps/100Mpbs GPIOs |
| 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/HTTP |
| Max. Client Number in TCP Server Mode | 32 |
| User Configuration | Web server+AT command config |
| Client Application Software | Clients can customize application software |