Using Arduino Control the Stepper Motor with a Potentiometer and Display the RPM

Question

Using Arduino Control the Stepper Motor with a Potentiometer and Display the RPM on the LCD Display 16x2

Goal: Understand how to use the stepper motor and the potentiometer as an 'analog user interface Set-up: Connect the potentiometer swiper (middle contact) to an analog pin. Connect the outer contacts of the pot to 5V and GND. Connect the stepper motor and the LCD display to the Arduino. Programming: Program the Arduino that it reads out the voltage on the swiper of the potentiometer. Use this voltage reading to set the speed of the stepper motor. Calibrate the stepper motor RPM by counting the rounds per time at a given motor setting. Use this calibration value to calculate the actual RPM. Display the RPM on the LCD display including units. Make sure that the LCD display is updated periodically to show an up-to-date RPM value.

Explanation / Answer

// built in arduino library<br>

#include<liquidcrystal.h> // calling the library

LiquidCrystal lcd(12,11,5,4,3,2);</liquidcrystal.h> //Pin configuration

//Variable myStg having length of 11

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