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Traffic Light

Ready

Three LEDs on a breadboard: red, yellow, green, in an order that never slips.

20 minBeginner5 steps4 parts

What you'll learn

  • Digital pins
  • Timing and reaction
  • Conditional logic

Build steps

  1. Check your kit2 min
  2. Bring ground to the breadboard3 min
  3. Build the red lamp6 min
  4. Repeat it twice6 min
  5. Upload and watch the order3 min

What you need

Check off what you already have.

4 parts missing

You can continue in guided demo mode

Nothing is blocked. The workbench runs on a simulated board, so you can follow the whole build without the physical kit.

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Manual demo controls are still active.