Security Alarm This article is about making an intruder alarm using Arduino and PIR sensor. When the PIR sensor will detect an intruder, it will send a signal to Arduino and the Arduino will sound an ...

Explore simplicity and innovation in our DIY Motion Sensor Light project. Learn to create an efficient LED setup using a PIR sensor, relay, and basic components – no microcontrollers required. Elevate ...

But if you’re looking for more projects involving PIR sensors, we have one that alerts you when your cat is back home. Meanwhile, check out this one in action after the break.