Features:
1. This is an industrial-grade integrated 802.11b/g/n module that can realize two-way transparent transmission of TTL serial port, WiFi, and network port.
2. It integrates multiple functions into one, including serial port server, Modbus gateway, MQTT gateway, UART to HTTPD client, etc.
3. Traditional serial port devices or MCU control devices can quickly access WiFi wireless networks through this WiFi module.
4. Small size and easy to install.
5. Suitable for data collection, IoT gateway, security IoT, smart instrument monitoring and other applications

Product parameters:
1. Power supply: DC 3.3V
2. Power supply method: pin header
3. Dimensions: 25 x 40 x 8mm
4. Ethernet: 10/100M auto-negotiation (connected through pin header)
5. WIFI: Complies with 802.11b/g/n
6. Serial port: UART
7. Frequency band: 2.412-2.484 GHz
8. Wireless network: Station / AP / AP+Station mode
9. Security mechanism: WPA-PSK / WPA2-PSK
10. Encryption type: TKIP/AES
11. Transmission power:
802.11b: +19dBm (max @11Mbps)
802.11g: +18dBm (max @54Mbps)
802.11n: +17dBm (maximum @HT20, MCS7); +17dBm (maximum @HT40, MCS7)
12. Receiving sensitivity:
802.11b: -89dBm (@11Mbps)
802.11g: -81dBm (@54Mbps)
802.11n: -73dBm (@HT20, MCS7); -71dBm (@HT40, MCS7)
13. Baud rate: 300-460800 bps
14. Check digit: none, odd, even, mark, space
15. Data bits: 5-9 bits
16. Flow control: RTS/CTS
17. Protocol: TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP/MQTT
18. Configuration: host, browser, serial AT command
19. Communication method: TCP/IP direct communication, VCOM
20. Working mode: transparent transmission, serial port command, HTTPD Client, Modbus TCP to Modbus RTU
21. Operating temperature: -40 to 85 degrees Celsius
22. Humidity range: 5% to 95%