Any new and unique ideas for Security System, using arduino and sensors.

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for study purposes :d

i have security system in use doppler radar unit (similar parallax unit, ginned own amplifier/filter -- costs lot less going parallax route)  , use cheap little electret mic.  mic there detect noise levels above ambient background noise.

at rate, radar has never false alarmed, , has never failed pick real motion (unless walks real slooow).  double checking, use mic:  keep moving average of 10 seconds of noise data (every half second), , mic @ picking noises, such conversation, in otherwise quiet room.  of course, pick thunder.

i send individual alerts, noise or motion, text messages phone, , can judge of whether combination of noise/motion events deserves attention.


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