Motion detection with a PIR Motion sensor (HC SR501) and an Arduino

    In this document, we will connect our HC-SR501 PIR (movement) Sensor to an Arduino. The Arduino will power the PIR sensor and when movement is detected, the PIR sensor will send a signal to Digital Pin 2. The Arduino will respond to this signal by illuminating the LED attached to Pin 13.

Components:

• Mini Breadboard 4.5cm x 3.5cm
• PIR Motion sensor (HC-SR501)
• LED and 330ohm resistor
• Breadboard Jumper Wire
• Arduino UNO (or compatible board)

    We connect our Arduino with the PIR Motion Sensor as follows:

            

Reference

• http://arduinobasics.blogspot.md/2013/12/pir-sensor-part-2.html