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Sneaking in the Fridge?



Sneaking in the Fridge?
Sounds are coming from the kitchen late at night. One morning a slice of pie is mysteriously missing. What's going on? Who's sneaking into the fridge? Build this simple alarm circuit to catch the midnight snacker in the act! When the refrigerator door is closed, the alarm is quiet.
Via Instructables, Published: 2009.05.30


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http://www.instructables.com/id/Sneaking-in-the-Fridge/