Making a calculator

Now that we know what a calculator is we can combine all the previous knowledge we have to make a calculator out of the Arduino

Key Objectives

In this project, you will:

• Create a calculator using the Arduino

• Document how well it works

1. Explore phase

Someone needs a calculator for a math class but can’t find one so he asks for help to make one

2. Create phase

Using a 4×4 keypad, Arduino, Breadboard, 9v battery and an LCD as well as several jumper wires create the following circuit

Once the circuit is made recreate the following code for the calculator

3. Share phase

Document how the calculator works when given various math problems