const int stepPin = 3;
const int dirPin = 2;
const int sleepPin = 4; 
int customDelay,customDelayMapped; // Defines variables
const int FORWbuttonPin = 6;
int FORWbuttonState = 0;
const int ONbuttonPin = 7;
int ONbuttonState = 0;
const int STOPbuttonPin = 8;
int STOPbuttonState = 0;
 
void setup() {
  // Sets the two pins as Outputs
  pinMode(FORWbuttonPin, INPUT);
  pinMode(ONbuttonPin, INPUT);
  pinMode(STOPbuttonPin, INPUT);
  pinMode(stepPin,OUTPUT);
  pinMode(dirPin,OUTPUT);
  pinMode(sleepPin,OUTPUT);
  digitalWrite(dirPin,HIGH); //Enables the motor to move in a particular direction
}
void loop() {
  
  customDelayMapped = speedUp(); // Gets custom delay values from the custom speedUp function
  // Makes pules with custom delay, depending on the Potentiometer, from which the speed of the motor depends
  
   FORWbuttonState = digitalRead(FORWbuttonPin);
  if (FORWbuttonState == HIGH)  {
    digitalWrite(dirPin, HIGH);
  } else {
    digitalWrite(dirPin, LOW);
  }
  STOPbuttonState = digitalRead(STOPbuttonPin);
  if (STOPbuttonState == HIGH)  {
    digitalWrite(sleepPin, LOW);
  } else {
    digitalWrite(sleepPin, HIGH);
  }
    ONbuttonState = digitalRead(ONbuttonPin);
  if (ONbuttonState == HIGH)  {
    digitalWrite(sleepPin, HIGH);
  } else {
    digitalWrite(sleepPin, LOW);
  }
  if (ONbuttonState == HIGH && STOPbuttonState == HIGH)   {
    digitalWrite(sleepPin, LOW);
  }
  
  digitalWrite(stepPin, HIGH);
  delayMicroseconds(customDelayMapped);
  digitalWrite(stepPin, LOW);
  delayMicroseconds(customDelayMapped);
}
// Function for reading the Potentiometer
int speedUp() {
  int customDelay = analogRead(A0); // Reads the potentiometer
  int newCustom = map(customDelay, 0, 1023, 5,300); // Convrests the read values of the potentiometer from 0 to 1023 into desireded delay values (300 to 4000)
  return newCustom;  
}