Light-Emitting Diodes (LEDs) – Introduction

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LEDs are like tiny light bulbs. Read the following pages about LEDs. Later, you’ll create a circuit using LEDs.

1. First, read this page that introduces LEDs. There is also a helpful video at the bottom of that page.
2. Next, read about how to use LEDs. Remember, you’ll be making a circuit with LEDs soon!
3. Then, read this page, which contains further details about LEDs and resistors.