---
layout: post
title: 3CH WiFi Relay Control Board
date: '2015-08-22T05:38:00.002-07:00'
author: Glyn Hudson
categories:
- ESP8266
- control
modified_time: '2015-08-31T02:11:48.322-07:00'
thumbnail: https://img.youtube.com/vi/nDaiUxO4Lt8/default.jpg
blogger_id: tag:blogger.com,1999:blog-2472065242652647619.post-5199904732641059940
blogger_orig_url: http://openenergymonitor.blogspot.com/2015/08/3ch-wifi-relay-control-board.html
---
We have recently started stocking in the shop a Three Channel WiFi Relay / Thermostat Board designed by our friend Martin Harizanov.
The board has been well designed to physically separate high voltage AC mains from the low voltage logic. The board has an optional power supply to enable the board to be powered directly from 100-240V AC. A wall-mountable plastic enclosure is included.
The board can be used to control a heating / AC / humidifier via local control loop from on-board sensor. The unit can be programmed with a schedule and or manually controlled via web UI via WIFI. Sensor data and relay status can be posted to Emoncms for logging and graphing.
NOTE: The board connects to and controls high voltage, knowledge and attention is required when installing to prevent electrical shock.
Overview
The relay board is a open software/hardware multi-purpose relay board based on the ESP8266 WiFi SoC. It can control up to three AC or DC loads over the Internet using web UI or MQTT.
