Tag Archives: passive infrared

It’s been a while since I last did an “exposed” article, where I take apart a sensor and take intimate pictures of its insides.  The HiTechnic Passive Infra Red (PIR) is a great one though.  It was also one of the most tricky ones to photograph and put back together.  To read more about what this sensor can do, check ...

HiTechnic have released a new product; the HiTechnic Passive Infrared (PIR) sensor.  With this sensor you can detect movement of warm bodies, such as pets and people. How does it work?  All warm bodies, such as people and pets emit a certain amount of heat, which is Infrared radiation.  This particular sensor keeps track of changes in the amount of ...