Arduino project 60- Arduino based thermostat and relay
In this tutorial, we will build a thermostat to independently activate and deactivate any domestic.
relay
Turn on an AC lamp using Arduino, 5V relay and motion sensor
This is a simple motion sensor project using Arduino. A 220V AC lamp is connected.
How to use a relay
A relay is an electrically operated switch. Current flowing through the coil of the relay creates.