Keychain Light

grabcad

Create a housing for a light-dependent LED circuit with room for two LEDs in the 'eyes' and a light-sensitive resistor in the 'nose'. The design was adapted from Ricardo Tech's instructable, available at http://www.instructables.com/id/Dark-Sensor-with-LDR-transistor-and-a-LED/. For power, I utilized a 12V A23 battery and increased the number of LEDs while adjusting the resistors accordingly.