This project consists of an Arduino Uno (ATmega328P), 4x3 Matrix Keypad, 16 x 2 LCD Display, 2–Channel Relay Module and two Loads. Here, the LCD is used to display the information related to the load ...

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 ...

This little guy, while simple in nature, acts as a fully functional (and portable) keypad on the go! It comes with two main programs, and it connects easily to your Arduino. It can be used to: 1 ...

This calculator uses a full 16 button matrix keypad. The Arduino deciphers button pushes with the help of the Keypad library, at which time the appropriate character is displayed on the 2×8 LCD ...