SR501

The PIR Motion Sensor Module – SR501 is a device used to detect motion in a room or area. It operates by using a passive infrared sensor to detect changes in the infrared radiation levels in its field of view, indicating the presence of a moving object. The module is small and compact, making it suitable for a range of applications, such as home automation, security systems, and robotics. The module outputs a digital signal, making it easy to interface with microcontrollers and other electronics.