🔰I built a simple Security System using an Ultrasonic Sensor with Arduino UNO 🔐✨ In this project, I detect motion and measure distance using an ultrasonic sensor, and when an object comes within a defined range, the Arduino UNO triggers an alert. This is a great Arduino project for beginners, especially if you’re learning sensors, distance measurement, and basic security system logic. Perfect for home security models, school projects, and anyone starting with Arduino programming 🚀 Detailed Video on YouTube - Full wiring, code explanation, and working demo make this project easy to understand and recreate. #ArduinoProject #ArduinoUNO #ultrasonicsensor #arduino #arduinoprojects