PIR Passive Infrared Motion Sensor

The PIR Passive Infrared Motion Sensor project utilizes an Arduino Mega to detect motion using a PIR sensor. PIR sensors detect changes in infrared radiation emitted by objects in their field of view, making them ideal for motion detection applications.

Components Needed

• Arduino Mega
• PIR Motion Sensor Module
• Jumper Wires
• Breadboard
• Power Supply

Block Diagram

Circuit Setup

Connect the PIR Motion Sensor to Arduino Mega:

Instructions

Circuit Setup:

Connect the PIR motion sensor module to the Arduino Mega as per the circuit setup section.

Library or Dependencies:

No additional libraries are required for basic digital input reading.

Code Upload:

Open the Arduino IDE and create a new sketch.

Copy and paste the provided Arduino code into the sketch.

Upload the code to the Arduino Mega.

Testing:

Open the Serial Monitor in the Arduino IDE (set to 9600 baud) to monitor the sensor values.

Observe the "Motion detected!" message when motion is detected by the PIR sensor.

Verify the "No motion detected." message when there is no motion.

Applications

Notes

Ensure the PIR sensor is positioned and adjusted according to the detection requirements.

Adjust sensitivity and delay settings in the sensor if supported by the module.

Explore integrating PIR sensor data with other components or systems for enhanced functionality.