Build a Basic Infrared Motion Alarm with Weekend Projects

Nick Normal

I'm an artist & maker. A lifelong biblioholic, and advocate for all-things geekathon. Home is Long Island City, Queens, which I consider the greatest place on Earth. 5-year former Resident of Flux Factory, co-organizer for World Maker Faire (NYC), and blogger all over the net. Howdy!

421 Articles

By Nick Normal

I'm an artist & maker. A lifelong biblioholic, and advocate for all-things geekathon. Home is Long Island City, Queens, which I consider the greatest place on Earth. 5-year former Resident of Flux Factory, co-organizer for World Maker Faire (NYC), and blogger all over the net. Howdy!

421 Articles


Are zombies trying to steal your yo-yo? Or do you want to booby trap the neighbor kid with a motion-sensing alarm? The PIR Sensor Arduino Alarm is great for both! Combining technologies we’ve used in previous Weekend Projects, this build is entirely solderless. It uses very few components, so it’s a great project for makers looking to get started with Arduino, or who want a quick lesson in digital I/O. The software program is provided, and many of you may already have these components laying around, but never thought to combine them together into an alarm.

If you build this project into an enclosure box of your own design, or come up with a clever use of spooking your friends with the alarm, be sure to send us an email with some actions shots or video, and a story about your build!

More:
See all of the Weekend Projects posts

Explore More From Make: