November 2, 2012 Add as a preferred source on Google Add as a preferred source on Google If you’re looking for something to do this weekend, consider this PIR (passive infrared) Sensor Alarm project.

In the microcontroller era today, Arduino is more than just a tool to accomplish hobby tasks. There is actually a close relationship between microcontroller technology and home security, since you can ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...