This is a circuit which is built to ring an alarm when you point a remote at it and press on any button. This is an alarm which is used to ring an alarm when you point a TV remote at it and press on ...
This motion detector alarm can detect a moving person from a distance of 1 meter. It uses a dual IR Transmitter-Receiver module HOA1405. When the sensor detects the reflected IR rays, alarm will sound ...
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