Duckchain

A fun light-up-in-the-dark pcb shaped like a duck! You can also use it as a keytag for decoration.

Schematic

PCB

BOM

• 1 Battery holder
• 1 NPN Transistor
• 1 LED
• 2 Potentiometer
• 1 Photoresistor
• 2 Resistors

Made by @obob on slack for https://solder.hackclub.com/!