Found often in solar garden lights that only turn on when it gets dark, this circuit is surprisingly simple. Follow along to make one yourself.

Materials Needed:

• 1/4″ Maker Tape

• 2N3904 NPN Transistor

• 1000 Ohm Resistor

• Light Dependent Resistor

• CR2032 Battery

• Jumbo 10mm Diffused LED

• Printable Template

• Scissors

Written instructions for this project can be found here. 

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