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PIN Code Access: Secure the system with a 6-digit PIN. LCD Display: 16x2 LCD for user interaction and status updates (e.g., "Enter Pin", "Alarm Active", "Motion Detected"). Keypad Input: A 4x4 matrix ...
This project uses an Arduino Uno and an HC-SR04 ultrasonic sensor to measure the distance of nearby objects and display it on a 16x2 LCD. If an object is too far, ... Component Quantity Arduino Uno 1 ...
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