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GitHubLíon na míonna: 3

Arduino-based security alarm system with keypad PIN entry, LCD display, ultrasonic motion detection, and PIN change functionality.

An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion detection using an HC-SR04 ultrasonic sensor, and ...
GitHubLíon na míonna: 2

adityagangurde27/4x4-Keypad-Interface-with-LCD-Display-using-Arduino

DESCRIPTION : This project demonstrates how to interface a 4x4 matrix keypad with an LCD (16x2) display using an Arduino board. The system captures key presses from the user via the keypad and ...