Sometimes, projects start in somewhat unlikely places. This one began when [Istvan Raduly] scored a fake raven at a neighbor’s garage sale and decided to turn it into a thunder-and-lightning ...

Let's use Arduino to make a light that turns on automatically only when someone approaches and turns off after a while.This ...

In the microcontroller era today, Arduino is more than just a tool to accomplish hobby tasks. There is actually a close relationship between microcontroller technology and home security, since you can ...

Passive Infrared (PIR) sensors are electronic devices that detect motion by sensing infrared radiation emitted by objects. Every object with a temperature above absolute zero emits infrared radiation.

The Wemos D1 looks like the normal Arduino board with the same pin layout as the Uno, which means all of the shields which can be used with the Arduino Uno, will plug in seamlessly with the Wemos D1.

This project combines a PIR (Passive Infrared) motion sensor with an Arduino Uno to create an interactive lighting system. When motion is detected, three LEDs perform a stadium-style wave effect, ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

Wireless sensor networks are nothing new to Hackaday, but [Felix]’s wireless PIR sensor node is something else entirely. Rarely do we see something so well put together that’s also so well designed ...