# Duckchain A fun light-up-in-the-dark pcb shaped like a duck! You can also use it as a keytag for decoration. ## Schematic Schematic Image ## PCB PCB Image 3D PCB Image ## 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/!