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Sense People approaching up your drive with two pieces of cheap technology. Minimal tools reqired: Exacto Knife (Stanley knife) Soldering Iron Drill
PIR motion sensor Cheap Radio Doorbell Enclosure for the doorbell Wire Tape
You only have to take apart the PIR sensor by unscrewing the axis clamp Take apart the swivelling part and take out the the back circuit board (the po...
First find the relay (a large component (in the pic it is blue)). Luckily the sensor circuit board runs off the same voltage as the doorbell. Attach t...
Box the doorbell and seal with tape. Close up the PIR sensor and mount both in the position of choice with a mains connection as said in the instructi...
When switched on The doorbell should ring when anything moves in its sensor area, it may work with cars also.
This instructable is submitted in good faith, playing with electricity is dangerous, you do this at your own risk, any damage caused is not the author...
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Posted:Aug 3, 2008
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