In this tutorial we are going to interface a 4x4 (16 key) keypad with ARDUINO UNO. We all know keypad is one of the most important input devices used in electronics engineering.

In this article, I have added three sensors with Arduino UNO and user can choose the required sensor with the help of keypad.

Circuit Diagram for Arduino Keypad Door Lock The Complete circuit diagram for our Arduino based Digital Keypad Door Lock project is shown below. First of all, we start from the brain of this project ...

Simulation of a password-based door locking system using Arduino in Proteus, featuring keypad interfacing, servo motor control, and automatic door locking functionality.

This project demonstrates how to interface a keypad and a 7-segment display with a PIC16F887 microcontroller. The circuit is designed using Proteus ISIS, and the code is written in mikroC.

(keypad: columns and rows switching) So now you can see how the button presses can be translated into electrical data for use with a microcontroller. We can now start the real experiment with as ...

We discuss some of the best Arduino Simulators that you can install on Windows computer to make projects without the need for any hardware.

[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made … ...