HC-SR501 PIR Sensor Pyroelectric Infrared Module

The PIR Motion Sensor Detector Module HC-SR501 allows you to sense motion. It is always used to detect the motion of a human body within the sensor’s range. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. PIR sensors detect general movement but do not give information on whom or what moved. The module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer. Repeat Trigger Selection Jumper is also available. This is Compatible with ARDUINO, RASPBERRY PI, AVR, PIC, 8051, etc.

Technical Details
Wide Working Voltage Range: DC 4V- 12V.
Quiescent Current: <65mA
Detection Angle: <120°
Level output: high 3.3 V / low 0V
Detection Distance: 3 to 7m (can be adjusted)
Blockade time: 2.5s (Default) can be made a range of zero seconds – tens of seconds
Sensing lens size: Diameter: 23mm (default)