Instructables: exploring - technology - sensors - fun - featured Mon, 30 Nov 2015 00:33:10 PST BLOX v1.01 Motion Sensing Air Raid Siren with Link it ONE!
Motion Sensing Air Raid Siren with Link it ONE! - More DIY How To Projects]]> Ayush Sharma Hello,Everybody wants to keep there unwanted guests/ thief's away from our home.So , i have made this Home Security Project to Play a AIR Raid Siren Audio File.(I know air raid sirens were used for nuclear Attacks but a normal buzzer or a beep would not make this project good, so i downloaded a air ...
By: Ayush Sharma

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Sat, 31 Oct 2015 04:19:12 PDT
Tilt Activated Switch
Tilt Activated Switch - More DIY How To Projects]]> frank26080115 It's a 3 position SPDT switch that closes (on) when tilted. Made with 3 pieces of plastic, a washer, and three machine screws + nuts. I made this switch as a hack for a cheap r/c car controller, inspired by the wiimote controlled car.I just realized, this can also double as a pedometer or a shake se...
By: frank26080115

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Sat, 10 Feb 2007 16:45:44 PST
Sneaking in the Fridge?
Sneaking in the Fridge? - More DIY How To Projects]]> JamecoElectronics 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. When the refrig...
By: JamecoElectronics

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Sat, 30 May 2009 17:24:26 PDT