To interface a Analog input (angular displacement sensor POT) and scale the values up on change in the input. Analog signals – directly measurable quantities in terms of some other quantity. Examples: ...

This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/AnalogInput int sensorPin = A0; // select the input pin for the ...

There was a time when building electronics and building software were two distinct activities. These days, almost any significant electronic project will use a CPU somewhere, or — at least — could.