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Circuits designed by David Johnson, P.E.
Last Updated on: Friday, March 12, 2010 12:08 PM

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Human Traffic Footstep Alarm
This circuit processes the amplified signals from the footstep detector circuit and activates a microprocessor when the circuit detects footsteps.  At has an adjustable sensitivity.
 

Click on Drawing Below to view PDF version of Schematic

Circuits Geophone Footstep detector Alarm Schematic

Master Schematic Category List  -  David A. Johnson, P.E.
Alarm Circuits   Geophones   Motion Detectors
 
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