H hdaroga New Member Sep 12, 2005 #1 i need to make a motion detector. i plan to use it to check if my vehicle is in motion or is it stationary. i need to know about how these motion sensors work both ir and ultrasonic. any circuit or schematic on motion sensors is appreciated.
i need to make a motion detector. i plan to use it to check if my vehicle is in motion or is it stationary. i need to know about how these motion sensors work both ir and ultrasonic. any circuit or schematic on motion sensors is appreciated.