Simple Motion Sensor Alarm Light
Intro: Based on the article, here is an introduction to the Simple Motion Sensor Alarm Light circuit: This DIY electronic circuit is designed to automatically detect motion and trigger a visual (LED) and audible (piezo buzzer) alert. It is an efficient and accessible project for beginners looking to build a basic security or automation system. Key Features: Core Sensor: It utilizes a PIR (Passive Infrared) sensor module , which monitors environment changes by detecting infrared radiation emitted by humans, animals, or moving objects. Detection Range: The setup can detect movement within a distance of 5 to 10 meters , depending on how you adjust the PIR module's sensitivity. Customizable Timing: Both the LED and the buzzer stay active for a specific duration that can be adjusted directly via the onboard potentiometers on the PIR sensor module. Power & Switching: The circuit operates on a 9V to 12V DC supply. It uses a single general-purpose 2N3904 NPN transistor to act a...