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 ...

This project implements a password-based door lock system using an Arduino, a keypad, and an LCD display. The user can enter a password to unlock the door, and the system provides feedback on the LCD.

There are so many types of security systems ... for our Arduino based Digital Keypad Door Lock project is shown below. First of all, we start from the brain of this project which is the Arduino UNO ...

In this tutorial we will build our own calculator with Arduino. The values can be sent in through a keypad (4×4 keypad) and result can be viewed on a LCD screen (16×2 Dot-matrix ... you can also check ...

The project ‘SafeHaven Shield,’ is an Arduino-driven home security system seamlessly integrating RFID and PIR sensors with a keypad lock. This advanced system ... verification and status display using ...

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.