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 ...

Scientific Calculator using Arduino Uno In this, we are trying to make a calculator using Arduino as microcontroller, 4x4 Keypad as input and LCD as output. This is implementated using TinkerCad ...

Password Based Door Lock System 🔐 This is a password-based door lock system using an Arduino Uno, 4x4 Keypad, and a 16x2 LCD display.

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 addition, the selection of components is somewhat limited (including only supporting the Arduino UNO, as far as we could tell). So for educational purposes, it is great.