Mike Krumpus of Nootropic Design (and creator of the Video Experimenter Shield which is the heart of Matt Richardson’s Enough Already hack) is at it again with his Defusable Clock:

I thought it would be fun to build an alarm clock that looks just like the type of bomb that we always see in Hollywood movies. I certainly don’t know anything about how a real bomb might look, but in the movies they always have sticks of dynamite strapped together, a red digital readout, and a bunch of curly wires. Instead of just building an ordinary clock, I thought it should have a detonation sequence with a scary countdown just like in the movies. And why not make it “defusable” so I can try to stop the countdown by cutting the correct wire?

Of course that isn’t actually dynamite, Mike wrapped wooden dowels in paper. More interestingly, he used an ATmega328 to power the board so anyone Arduino-savvy can hack their own. He’ll be offering kits in the near future; you can sign up for an email notification on the project page.

John Baichtal

John Baichtal

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal nerdage.net


  • Anonymous

    Maybe Interference Inc. could use it for their next advertising campaign in Boston.

  • http://pulse.yahoo.com/_D2ECZV6HELBGKYGEHBU7JZMNRE Nathan

    Reminds me of this clock I saw a few years ago:
    http://www.denkimono.com/timer/

  • http://pulse.yahoo.com/_D2ECZV6HELBGKYGEHBU7JZMNRE Nathan

    Reminds me of this clock I saw a few years ago:
    http://www.denkimono.com/timer/

  • ryan klackle

    But, now you need to rewire it after each time

    • http://www.facebook.com/profile.php?id=100002780558211 Edward Bennigsen

      Unclipping Crocodile Clips would be a friendlier version, but cutting them with pliers is soooo much more awesome.

    • http://www.facebook.com/profile.php?id=100002780558211 Edward Bennigsen

      Unclipping Crocodile Clips would be a friendlier version, but cutting them with pliers is soooo much more awesome.

    • http://www.facebook.com/profile.php?id=100002780558211 Edward Bennigsen

      Unclipping Crocodile Clips would be a friendlier version, but cutting them with pliers is soooo much more awesome.

  • Anonymous

    Just hope dynamite sticks aren’t “ACME” brand…
    Wyle E.

  • Anonymous

    Just hope dynamite sticks aren’t “ACME” brand…
    Wyle E.

  • Anonymous

    I predict legal problems…

  • http://www.facebook.com/profile.php?id=100002780558211 Edward Bennigsen

    Hmm, bomb kits..

    ;-)

  • http://www.facebook.com/people/Deven-Patel/1850813414 Deven Patel

    Couldn’t you just as easily defuse it by unplugging the 5V adapter?

  • http://pulse.yahoo.com/_4QYEH3JOXTDMTF2FPZCOOATM4M AsylumWarden

    OMG!  I made one of these back in high school in the early 90’s. I kept it in my locker hanging on its own wires. It was awesome and a great conversation piece which was helpful since I wasn’t great at making friends. It was made of a disassembled digital watch, some pieces of wire, and a bunch of wood dowel rods painted red. It was obviously a fake but it was cool. A passerby saw it, possibly thought it was real (or just causing trouble for me), and told a teacher. The teacher told the principle and security. They in turn called the police who didn’t know what to do. They in turn brought out an explosives expert from the national guard who somehow couldn’t tell it was fake. I think they blew it up. Never once did anyone call me or say anything to me or even mention what was happening. I finally got called into the hall where security took me into custody; thankfully not the police. I had no idea what was going on! I got suspended for 2 weeks.  It was a great break with all kinds of nice treats from my family and friends who got a good laugh out of it. Later I also got suspended for building a tesla coil in electronics class (to dangerous), writing a noise maker program and leaving it on a class room computer (labeled “Click Me”) and the teacher couldn’t stop it, and a class IIIb dye laser built from various parts laying around the school (I am still not sure of the problem there). I think my school was anti-tech or at least scared of smart kids.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

    • Thomas Wyatt

      I salute you.

      the most anyone in our school has done is putting a simple fork bomb in a public folder, and labeling it something that would inspire curiosity. included in said fork bomb was a command to make thousands of (empty) folders in aforementioned public folder.

      someone ran it.

  • Anonymous

    Great travel alarm for a frequent flyer…..

  • http://pulse.yahoo.com/_HAZDC7T6C56WPE7I25EFCEE2HA Mickyhassel

    Its very dangerous if we wouldn’t take it refuse then it can be destroy.we have need this ammunition to take it safe place and don,t use in future.