A tiny keychain-sized LED flashlight powered by a coin cell battery.

Press the button (SW2) to light the LED (D2). Release to turn it off.

1. Order the PCB from production folder.
2. Order the parts in bom.csv.
3. Solder it together.
4. Insert a CR1225/BR1225 coin cell and press the button.

Free to use, modify, and build.