GitHub

# 4x4-Keypad-Arduino-Processing

1. Arduino (any Arduino will do). 2. Keypad (it can be 4x4 or 4x3. I have used a 4x4 keypad). 3. Processing Software. 4. Keypad library Here are the links if you don ...
GitHub

A fully functional calculator built with an Arduino Mega, 16x2 LCD, and 4x4 keypad. Supports addition, subtraction, multiplication, division, modulus, and negative number input ...

There was an error while loading. Please reload this page. Arduino (Elegoo Mega 2560) LCD & Keypad Calculator Overview A fully functional calculator built using an ...