Introduction: Arduino PIR Sensor Alarm (SIMPLE VERSION)

Get Resources For Project

  • Arduino Uno REV 3
  • PIR Sensor
  • Piezo Buzzer
  • Jumper Wires
  • Blue LED

Step 1: Build & Program Your Arduino PIR Sensor Alarm

Building & Programming The Arduino PIR Sensor Alarm

This Is A Simple 1-Step Project To Create A PIR Sensor Alarm Using The Arduino Uno. When It Detects Motion The LED Will Flash And The Piezo Buzzer Will Sound To Alert You That Motion Was Detected. So Just Connect The Bliue LED With Large Lead Into PIN 13 And Smaller Lead Into GND. Connect The Piezo Buzzer's Large Lead To PIN 10 And The Shorter Lead To GND. Finally, Connect The PIR Sensor's OUT PIN To PIN 2. Also Connect The PIR Sensor's GND Pin To GND And It's VCC PIN To 5V.