A home security system using a PIR (Passive Infrared) motion sensor connected to an Arduino. The system detects motion and triggers both audible (buzzer) and visual (LED) alerts. The project is ...

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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 ...

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 ...