Product detail

PIR is an infrared unit of the human body. It belongs to the "passive pyroelectric infrared detector". It detects infrared radiation emitted and reflected by the human body or object. When infrared is detected, the output level is high and takes some time. Delay (high during period and allowing repeated triggers) until trigger signal disappears (restores low level).

This unit communicates with the M5Core via the GROVE B.