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