UART to WiFi and Ethernet Module (Modbus/MQTT Gateway)

This 802.11b/g/n module has different connectivity options, including a TTL serial port, WiFi, and ethernet for bi-directional transparent transmission. It has several functions, such as a serial server, Modbus gateway, MQTT gateway, and UART to HTTPD Client, providing quick WiFi network access for traditional serial port devices or MCU control devices. Compact and easy to install, this module is ideal for data acquisition, IoT gateway functions, and safety & security IoT applications.

Features

• Embedded Design
• UART to WIFI/ETH
• Multi Transparent Transmission Modes
• HTTPD/MQTT
• Modbus Gateway
• Host/Webpage/Serial Configuration

Specifications

Power supply	DC 3.3V (±5%)
Power supply method	Pin header
Dimensions
(L × W × H)	25.00 x 40.00 x 8.00mm
Communication
Ethernet	10 / 100M auto-negotiation (Connection via pin header)
WIFI	802.11b/g/n compliant
Serial port
Embedded	UART
Wireless Specifications
Frequency Band	2.412 ~ 2.484 GHz
Wireless network	Station / AP / AP+Station Mode
Security mechanism	WPA-PSK / WPA2-PSK
Encryption type	TKIP / AES
Transmitting power	802.11b: +19dBm (Max.@11Mbps)
	802.11g: +18dBm (Max.@54Mbps)
	802.11n: +17dBm (Max.@HT20, MCS7); +17dBm (Max.@HT40, MCS7)
Receiving sensitivity	802.11b: -89dBm (@11Mbps)
	802.11g: -81dBm (@54Mbps)
	802.11n: -73dBm (@HT20, MCS7); -71dBm (@HT40, MCS7)
Serial Specifications
Baudrate	300 ~ 460800 bps
Parity bit	None, odd, even, mark, space
Data bit	5 ~ 9 bits
Flow control	RTS/CTS
SOFTWARE
Protocol	TCP / UDP / ARP / ICMP / DHCP / DNS / HTTP / MQTT
Configuration	Host, web browser, serial AT command
Communication method	TCP/IP direct communication, VCOM
Operating mode	Transparent transmission, serial command, HTTPD Client, Modbus TCP to Modbus RTU
Environment Requirements
Operating temperature	-40℃ ~ 85℃
Humidity range	5% ~ 95% relative humidity

Resources

• Product Wiki
• User Manual

Pinout

Package Contents

• 1x UART To WiFi And Ethernet Module
• 1x IPX 2.4G 2DB Antenna