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January 18, 2008

Heart-Stopping Wakeup Calls — Episode 2: Fire Alarm Bell Clock


Inspired by this past Wednesday's Screaming Meanie post, James Thornburg suggested an alternative, do-it-yourself solution; his email follows.

    Fire Alarm Clock

    For the really, really, really sound sleeper (or in case you want to wake up the entire neighborhood), Alan Parekh of Hacked Gadgets Forum cobbled together this masterpiece: an alarm rigged up to a fire alarm bell!

    This hack takes a standard cheap alarm clock, some interface components and a fire alarm bell to get the job done right. Normally these small alarm clocks use a piezo buzzer to attempt to wake you up. Here the alarm signal is hijacked from the clock circuit board and used as an input to the interface board.

January 18, 2008 at 09:01 AM | Permalink


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It wasn't my post, but it was pulled from another site...I just can't remember where. I get distracted by Joe inbetween surfs and lose my place. :)

Posted by: JMT | Jan 18, 2008 10:45:24 AM

My coffee traveled up my head instead of down my throat thanks to this one.

Posted by: Milena | Jan 18, 2008 9:10:39 AM

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