The circuit of IR burglar alarm system comprises transmitter and receiver-cum-alarm sections. It works off 6V DC, 500mA uninterrupted supply and uses low-cost readily-available electronic components.

You can also use this circuit as a motion sensor alarm. When anyone enters the toilet the IR proximity sensor senses the motion and turns on the light, and when he or she exits from the washroom the ...

An Infrared close object sensor installed on an industrial vehicle detects objects or pedestrians located in a hazardous area. When it detects a problem an audio/visual indicator makes an alert, that ...