2nd Gen WiFi Relay / Thermostat

Multi-purpose relay board based on the ESP8266 WiFi SoC.

Perfect for remote heating an A/C systems control via nodeRED, openHAB and Android Tasker etc. 

• 1 x 16A Relay

• Powered by the popular ESP8266 WiFi SoC - (custom firmware upgradable)

• OTA Firmware upload function

• Powered direct from 110-240V AC via isolated on-board PSU

• Built-in web server with mobile device friendly UI and

• HTTP API to control

• Thermostat function with weekly scheduling

• Manual relay control via web interface

• MQTT support (control & status)

• NTP for network time and scheduling functionality

• Supported by HomeAssistant

• Web server settings: including HTTP port & authentication setup

• Temperature sensor support - 1 x sensor included 

• PCB dimensions: 87mm x 50mm
• External Enclosure Dimensions: 90.2mm; X: 53.3mm; Z: 57.5mm
• working temperature of 0°C > +45°C.
• WiFi 2.4Ghz

• CE Approved

NOTE: The board connects to and controls high voltage, knowledge and attention is required when installing.

Includes

• WiFi relay board, fully assembled & testing

• External Temperature Sensor probe - DS18B20 

Documentation & Setup Guide

Setup User Guide

Home Assistant Integration

GitHub ESP8266 Firmware & open-hardware design 

Related Blog Posts:

• DIY Internet Connected Smart Humidifier
• WIFI Thermostat with weekly scheduler
• WiFi IoT 3 channel relay board with MQTT and HTTP API using ESP8266
• ESP8266 OTA Update 

▼ Product video below is for the older 3ch version, however much of the MQTT control via nodeRED application is still relevant ▼