They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors. PIRs are basically made of a pyroelectric sensor (which you can see above as the round metal can with a ...

It is a IoT Automation project, we had used PIR motion sensor, Node MCU and Telegram bot. The ESP8266 will interact with the Telegram bot to send message to your telegram account. Whenever motion is ...

It has a 4 kB in-circuit ... integrated motion detection algorithms and a selection of lenses and PIR sensors to fit a wide range of appli- cation requirements. Optimized configuration parameters for ...