- Blog entry posted in 'What kind of sensor?', April 24, 2015.
I've been chatting with a manufactor in China and they have customized a circuit for my invention. The only element missing from the circuit is a sensor. They have asked me to determine which sensor I would like to add to the circuit but I'm unsure. Can someone assist me? Here's the details.
I need a sensor that displays a beam of light about 3ft and can detect a human presence. Once the beam is broken by the human, nothing will happen but once the beam is full range again, a siren goes off. I believe I'm need a sensor and a micro controller. Any help you can provide is appreciated.
