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 ...

To be frank, using a microcontroller is probably overkill for most motion detector safety light circuits because the PIR sensor module itself can handle the task effectively. Inclusion of a ...

As a perfect example, take a look at this stupendously simple Internet-connected motion detector ... sensor, and some open source code, you can create a practical self-contained motion sensor ...

The kit uses a millimeter wave sensor as a super-sensitive motion tracker ... rounds everything out. Circuit-wise, there isn’t much going on since everything is on a module PCB.