Welcome to Day 8 of the 100-Day Arduino Masterclass! Today, we explore motion detection. We will interface a Passive Infrared (PIR) sensor with the Arduino to build an intrusion alarm that activates ...

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 ...

This ESP32 motion sensor project pairs the HC-SR501 PIR sensor with Arduino to build a real-time motion detection system with a live web dashboard. It works as a home automation trigger or as a first ...