// ProportionalControl.pde
// -*- mode: C++ -*-
//
// Make a single stepper follow the analog value read from a pot or whatever
// The stepper will move at a constant speed to each newly set posiiton, 
// depending on the value of the pot.
//
// Copyright (C) 2012 Mike McCauley
// $Id: ProportionalControl.pde,v 1.1 2011/01/05 01:51:01 mikem Exp mikem $

// Code: https://www.airspayce.com/mikem/arduino/AccelStepper/ProportionalControl_8pde-example.html
// Sim: https://wokwi.com/projects/327379142347588180  
//    derived from https://wokwi.com/projects/327324886912467538
// Discussion: https://discord.com/channels/787627282663211009/787630013658824707/957769150556667954
//         and https://github.com/wokwi/wokwi-features/issues/191
// See https://wokwi.com/projects/327381547863769683 for acceleration/inertia example
#include <AccelStepper.h>
// Define a stepper and the pins it will use
AccelStepper stepper; // Defaults to AccelStepper::FULL4WIRE (4 pins) on 2, 3, 4, 5
// This defines the analog input pin for reading the control voltage
// Tested with a 10k linear pot between 5v and GND
#define ANALOG_IN A0
void setup()
{  
  stepper.setMaxSpeed(1000);
}
void loop()
{
  // Read new position
  int analog_in = analogRead(ANALOG_IN);
  stepper.moveTo(analog_in);
  stepper.setSpeed(100);
  stepper.runSpeedToPosition();
}