Version 1.0 If the door knob is touched (from the other side of the door) the alarm goes off. I wired a 10 uf capacitor in series with a 1 mega-ohm resistor from 5v to Analog0 like this: The Arduino is hanging on the doorknob by the loop in the wire. AnalogRead records the change in values. If…

Door Knob Touch Alarm

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