Control a power outlet with an ESP8266 running MQTT via a relay

By: (plus.google.com) +David Herron; Date: April 17, 2017

Tags: Power Control » Home Automation » ESP8266 » MQTT

The ESP8266 is a little computer gizmo with bundled WiFi that's easy to incorporate into a wireless control system. The on-board computer is tiny, but it's powerful enough to run a MQTT client. MQTT in turn is an extremely light-weight message-oriented communication system. The example shows an ESP8266 with custom software controlling a relay, that in turn controls enough AC power to turn a light on/off. Controlling the relay is fairly simple, since the ESP8266 has an output strong enough to drive the coil of a relay.

Code: (github.com) https://github.com/ItKindaWorks/ESPHelper/blob/master/examples/RelayControlV2/RelayControlV2.ino

The software is built with ESPHelper, see: (www.youtube.com) https://www.youtube.com/watch?v=HyicIoBBLQ8

Smart Relay Build - YouTube

Source: (www.youtube.com) ItKindaWorks

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ESPHelper Relay Demo - YouTube

Source: (www.youtube.com) ItKindaWorks

This is a super simple demo of ESPHelper to control a relay connected to an ESP8266 through MQTT. This demo shows off all of the main features of ESPHelper i...
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