
Light Sensitive LED
Originally uploaded by Collin Mel
Man, when circuits get extra small, they get extra cute. This one will be used as an earring.
Once a 3V coin battery is attached the blue LED will light up in the dark.

Light Sensitive LED
Originally uploaded by Collin Mel
Man, when circuits get extra small, they get extra cute. This one will be used as an earring.
Once a 3V coin battery is attached the blue LED will light up in the dark.
Do you have a circuit diagram for this? I'm looking to build something similar, but keep blowing out my transistor...