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A circuit that craves light

The LED lights in daylight and turns off when you cover the light sensor.

Open in the 3D builderReserve a kit
+−3V220ΩNPNNPN50%
RunningIt works!Current flows from the battery's + side, through your blocks, and back to −.
  • 1 LED lit

Try this

Click the light sensor to cover it.

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