overview and Video
The objective of this project is to learn how to create a motion sensor that triggers a red light and buzzer when it senses movement.
You can use this Arduino-controlled alarm to trigger a variety of outputs, such as lights, motors, or even a “welcome home” message when you approach your front door.
When this project is successfully built, the sensor will detect motion and trigger an alarm buzzer to sound and an LED to light up.
This is project 21 from the Arduino Project Handbook, V1 by Mark Geddes.
We built it on a WorkBench Project Development Kit from Phase Dock.
you will need
400 pin breadboard
“Always-on” battery (optional; this project can be powered from your computer)
Passive infrared (PIR) motion detecting sensor
LED light (the Elegoo 37 Sensor Kit has one LED; we recommend you purchase additional LEDs)
2000 - 5000 Ohm resistor
WorkBench 1007 with two 2x3 Clicks, one Arduino Slide
Optional: one 2x3 or 1x3 Click depending on the size of your battery
Optional: 1007 Cover
Arduino Project Handbook, Volume 1, by Mark Geddes; this is Project 21
You can purchase the book (we recommend supporting Mark’s work).
You can download the sketches and libraries (code) for these projects.
Elegoo 37 Sensor Kit, V2.0 (for the buzzer and PIR sensor)