To create the LED stars and Rudolph's nose, we will use copper tape and make a parallel circuit. A parallel circuit allows all leds to have the same voltage applied across but current will be different. A series circuit would work too, but a parallel circuit works better for the layout of the LEDs and the copper tape.
If you're curious about the science behind circuits and want to explore further, check out the guide: Circuits from Scratch.
If some lights are on and others are not:
- Double check the orientation of the LED legs. The longer legs should be connected to power.
If the white LEDs turn on but the red one doesn't (or vice versa):
- Try removing the resistor and putting copper tape down in its place. Not all LEDs may be getting enough current.
If all else fails, the more copper tape you add to meager looking areas, the more conductivity you will have.
Power up CRICKIT, touch the moon, and watch them ride!