Introduction ( WiFI Module for IOT )
USR-WIFI232-A2 is an embedded 802.11 b/g/n wifi /wireless module used for Transparent data transmission between MCU controlled device and wireless network.The Max transmission distance is 200m with Internal antenna under open horizon and no obstacle situation.
Function (Serial UART to WiFI Module for IOT )
- UART/GPIO/Ethernet data interface.
- Built in Web Server/Webpage for configuration.
- Webpage socket to Serial.
- HTTP Client: send data as HTTP format automatically. Serial data submitted to server by HTTP (GET/POST).
- DHCP: automatically obtain an IP address and query IP address.
- DNS address and MAC address can be modified.
- Synchronous and adaptive serial port baud rate.
- Support router/bridge mode networking.
- Registration packet: identified header can be added to packets to check connection status.
- Heartbeat packet: can be sent to serial or network periodic. To ensure connection is reliable, put an end to dead link.
- Support UDP, TCP, HTTP protocol and Transparent transmission, AT Command Mode, HTTP Client Mode.
- The Max TCP Client connection is 32 in TCP Mode. The Max STA connection is 32 in AP Mode
1) Virtual serial port software(VCOM), Windows 2000 or higher (32 bit/64 bit)
1)Web Server configuration. (User Manual)
2)Serial and Network AT Command.
1) Hardware reset: Pull down nReload Pin (Pin 10) for 3 seconds or more
2) Software reset: Enter AT command mode, use AT command AT+RELD.
3) Webpage setting: “Device management page”
Firmware upgrade by webpage. “Device management page” (User Manual)
WIFI Networking Mode (Embedded Wireless Module )
1) AP: the wireless access point and the founder of wireless network. all devices can connect AP. E.g.: A router also work as AP.
In AP Mode, the Max STA connection is 32.
2) STA: terminal of the wireless network. All communication between STAs is through AP. e.g.: PC can work as STA.
3) AP+STA: supports one device as AT and one device as STA
Application (IOT Wireless Modules )
- Industrial automation system.
- Electronic scale, vending machine and POS machine.
- Energy consumption monitoring: intelligent ammeter and intelligent water meter.
- Smart parking system and Intelligent traffic system.
- Cold storage logistic system.
- Environmental monitoring and temperature data acquisition.