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How To Use A Relay With Arduino

Using Sensor Data to Activate a 5V Relay on the Arduino - Circuit Basics

Arduino - Relay | Arduino Tutorial

How to Set Up a 5V Relay on the Arduino - Circuit Basics

Arduino - Relay | Arduino Tutorial

Voltage needed for IN pin of relay - Project Guidance - Arduino Forum

Arduino Relay Control 331

The Answer is 42!!: Elegoo 8 Channel Relay Module Tutorial