If you've got an Arduino of any variety, you might have noticed some of the pins on the board have a tilde mark or PWM printed next to them. What is PWM?

The results are measured by the analog-to-digital converter of an IC to tell which button was pressed. The difficult part is calculating the resistor values.

The button states could easily be read by using an Arduino’s analog input. A Pro Mini model was chosen for its small size as it could be housed in the radio compartment of the dash.

The Arduino Nano itself is the most basic and oldest of the group, and just like its many iterations, it's designed to work primarily with breadboards, making it a great tool for prototyping.

Code explanation On the first line we set a variable pinButton with an integer value of 8 (the pin number on Arduino Board where we connect the button or switch). Then in the void () function we set ...