Raspberry Pi – Turning Lights on and off Using Relay Board

In this post, we will be learning about connect 4 Channel relay board to Raspberry Pi. If you haven't done the RPi setup then please read Raspberry Pi – Introduction and Setup. What is a relay? A relay is an Electrical Switch which is used to open or close a circuit with an electromechanical relay… Continue reading Raspberry Pi – Turning Lights on and off Using Relay Board

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