Arduino-based security alarm system with keypad PIN entry, LCD display, ultrasonic motion detection, and PIN change functionality. Arduino PIN-Protected Alarm System with Motion Detection An Arduino ...

This project implements a password entry system using Arduino, where users enter a 4-digit password via a keypad, and the entered password is displayed on an LCD. If the password matches the preset ...

In this project we have built an Arduino Keypad Door Lock which can be mounted to any of your existing doors to secure them with a digital password. ... RFID Door lock system using Arduino; Before ...

Circuit Diagram of Interfacing Membrane Keypad with Arduino Uno. Connection of Arduino with 4x4 keypad is quite simple. Connect the 4 columns of the keypad to digital pins 4, 5, 6, and 7 on the ...

Makers and developers that enjoy creating projects using the Arduino platform may be interested in a new shield for Arduino that incorporates an LCD JEMshield++, keypad and enclosure all in one.

In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present challenges such ...