Use Arduino to drive HC-SR501 infrared motion sensor and 2-relay

Byamber

Use Arduino to drive HC-SR501 infrared motion sensor and 2-relay

1)Objective：

This project will show you how to use Arduin to drive HC-SR501 infrared motion sensor and detect human motion.

2)Parts and Devices

1 x Arduino UNO

1 x HC-SR501 infrared motion sensor

1 x USB cable

1 x 2-channel relay

1 x RED LED

1 x BLue LED

1 x Breadboard

Jumper wires

3)Circuit graph

4)sample code link

down load motion sensor relay sample code

5)Result

When human is moving close to motion sensor, relay channel one will open and channel 2 will close, RED LED will turn on and blue LED will turn off. When human is moving away from sensor, relay channel 1 will close and channel 2 will open. Red LED will turn off and Blue LED will turn on. Picture as following: