Keyhole Finder


Jugaadu had returned from a family trip in the late evening. When his father went to turn the door to unlock it, he was not able to find the keyhole as it was dark. It happened with them earlier too. Can you help Jugaadu to solve this issue?

Bag Items:

  1. Arduino UNO UNO
  2. Jumper Wires
  3. USB Cable
  4. Foam sheet
  5. Battery and DC Jack
  6. Glue gun
  7. Ultrasonic sensor
  8. LED
  9. Cutter