4x3-keypad-lock-system A lock system that uses a 4x3 keypad matrix, and a double lock mechanic. This project is a simple one. To use this you can download the source code and upload to your arduino.

KeypadSim is an Arduino library for simulating a 4x3 matrix keypad. It allows you to queue keypresses programmatically, making it ideal for testing, automation, or simulating user input on devices ...