This project is designed for use with an Arduino Pro Micro and a 4x4 keypad matrix. The code enables the Arduino to read input from the keypad and emulate keyboard input, sending keystrokes to a ...

This project is an Arduino-based calculator that uses a 4x4 keypad for input and an I2C LCD for output. The calculator can perform basic arithmetic operations such as addition, subtraction, ...

Arduino enthusiasts or those looking to learn more about programming with Arduino and electronics-in-general may be interested in a new Kickstarter campaign and Arduino compatible 42-Digit SPI Keypad ...

One of [Kale_3D]’s teachers had made an Arduino-powered calculator. It wasn’t robust and didn’t last too long in the classroom environment. After the non-functional calculator sat around the class for ...