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In this tutorial we will build our own calculator with Arduino. The values can be sent in through a keypad (44 keypad) and result can be viewed on a LCD screen. This calculator could perform simple operations like Addition, Subtraction, Multiplication and Division with whole numbers. But once you understand the concept you can implement even scientific functions with Arduinos built in functions.

Arduino Uno
162 LCD Display
44 Keypad
Jumper Cables
Arduino Cable”

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