Experiment 4 How to Use PIR

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Overview:

In this experiment, we will use an LED to indicate the state value of PIR. When someone goes by, the LED will light up; when no one goes by, the LED will go out.

Components:

SUNFOUNDER MEGA2560 * 1

PIR * 1

USB Cable * 1

Jumper wires

Steps:

First, connect the circuit

The connection between SUNFOUNDER MEGA2560 and the LED is shown below:

Second, program (Please refer to example code in CD we provide)

Third, compile the program

Fourth, burn the program into SUNFOUNDER MEGA2560 board