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Step 12 Connect the 1st pin of the second switch to the ground rail and the second pin to the third
pin of the RGB LED.
Step 13 Connect the first pin of the third switch to the ground rail and the second pin to the fourth
pin of the RGB LED.
Circuit Operation
When the switch is turned on, it completes the circuit, allowing electricity to flow to the RGB LED.
The RGB LED emits light, and by adjusting the switch, students can control the color emitted,
creating different mood lighting effects. When the switch is turned off, the circuit is broken, and the
LED turns off.
Concepts
Properties of Light: Understanding how different colors of light combine to create new colors
through additive mixing.
Hands-On Electronics with Breadboard-Based Kit 31
