[/ I have four HC-SR501 Passive Infrared sensors located at our camp along a small dirt country road connected to a microcontroller to detect how many and in what direction vehicles have been traveling North and South. Microcontroller used is an Arduino R3 with a data logging shield and will write …

Vehicle detection

anon57585045 January 13, 2018, 4:12pm 6

I've suggested a buried vibration sensor in previous threads.

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