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Connecting jumper wire; Power supply; ... Relay: Relay is an electromagnetic switch, which is controlled by small current, and used to switch ON and OFF relatively much larger current. ... Circuit ...

A switch button is used to turn the circuit on and off. Components: Arduino Uno RGB LED Resistor 10K ohm Resistor 221 ohm Jumper wires Pushbutton switch Breadboard Rotary potentiometer. Procedure: You ...