Defusable Clock Kit

Be a hero (or at least pretend to be) while defusing this alarm clock and saving the day!

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Availability: SHIPS TODAY

Last Updated: 02/26/2024




The Defusable Clock is a fully-functional alarm clock just like you’d expect (a normal beeping alarm, snooze alarm, etc.). But at any time you can press the big red button to start a scary countdown sequence exactly like bombs in Hollywood movies. There are 4 wires across the top of the clock. You have 10 seconds to choose the correct wire to cut: one wire stops the countdown and saves the day, two have no effect, and one will “detonate” the device immediately. These role of each wire is randomly assigned when the detonate button is pressed, so it’s a new challenge every time.

Technical Details

  • ATmega 328 with Arduino bootloader for easy hacking
  • Screw terminals allow easy wire replacement
  • Fully functional alarm clock with snooze
  • Two alarm modes (normal and countdown)
  • Time stored in EEPROM so it keeps time even after brief power outages
  • Big DET button to start the countdown sequence
  • Dimensions: 3.4 x 2.9 inches (86mm x 74mm)
  • Comes as a soldering kit that makes a fun project
  • Requires 9V Power Adapter or 9V Battery Adapter

 Also available in a fully assembled and pre-soldered version for prop makers who want to save some time here:

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