PIR Sensor Application in Night Light

Pyroelectric Infrared Sensor can detect infrared radiation by using the characteristic of spontaneous polarization of material with temperature change, adopting double sensitive element design, suppressing the interference generated by the change of ambient temperature and improving the working stability of the sensor. The sensor has a wide range of applications, such as smart toys, automatic light switches, sensor doors, etc. It is especially suitable for smart toy applications.

It has the advantage of simple circuit, low power consumption, customized MCU.