UART WiFi Modules | Serial to WiFi Modules

UART WiFi Modules | Serial to WiFi Modules

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Product Name:UART WiFi Modules | Serial to WiFi Modules

  • Model:USR-WIFI232-B2

Introduction of UART WiFi Modules USR-WIFI232-B2

USR-WIFI232-B2 are UART WiFi Modules, embedded serial to 802.11 b/g/n WiFi modules with external antennas. UART WiFi Modules USR-WIFI232-B2 connect traditional serial devices and MCU controlled devices with WiFi network to realize control and management. The module has 1 Ethernet port that can realize mutual data transmission among WiFi, serial and Ethernet.

 

Features of UART WiFi Modules USR-WIFI232-B2

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 USR-WIFI232-B2

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 Serial to WiFi Modules USR-WIFI232-B2

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

 

Function Structure of Serial to WiFi Modules USR-WIFI232-B2

Function Structure of Wifi Modules

 

Networking Mode of Serial to WiFi Modules USR-WIFI232-B2

AP Mode

Networking Mode of Wifi Modules: ap mode

 

STA Mode

STA Mode of M2M Wifi Modules, sta mode

 

AP+STA Mode

AP+STA Mode of M2M Wifi Modules, ap+sta mode

 

Image of Serial to WiFi Modules USR-WIFI232-B2

Images of Wifi Modules


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Hardware Dimensions

Wireless Parameters
CertificationFCC/CE
Wireless Standard802.11 b/g/n
Frequency Range2.412GHz-2.484GHz
Transmit Power802.11b: +20dBm (Max.)
802.11g: +18dBm (Max.)
802.11n: +15dBm (Max.)
Configurable
Receive Sensitivity802.11b: -89dBm
802.11g: -81dBm
802.11n: -71dBm
AntennaExternal: I-PEX connector
Hardware Parameter
Data InterfaceUART: 300bps~460800bps
Ethernet: 10Mbps/100Mpbs
GPIOs
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

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