Stepper Motor

stepper.ino

//Declare pin functions on Redboard
#define stp 2
#define dir 3
#define MS1 4
#define MS2 5
#define EN  6

//Declare variables for functions
char user_input;
int x;
int y;
int state;
int buttonState = LOW;
int pot = 0;



void setup() {
pinMode(stp, OUTPUT);
  pinMode(dir, OUTPUT);
  pinMode(MS1, OUTPUT);
  pinMode(MS2, OUTPUT);
  pinMode(EN, OUTPUT);
  pinMode(8, INPUT);
  pinMode(A0, INPUT);
  resetEDPins(); //Set step, direction, microstep and enable pins to default states
  Serial.begin(9600); //Open Serial connection for debugging
  
}

void loop() {
  // put your main code here, to run repeatedly:
buttonState = digitalRead(8);


//Serial.println(pot);

if(buttonState==HIGH) //if button is on
{
  digitalWrite(dir, LOW); //Pull direction pin low to move "forward"
  for(x= 1; x<1000; x++)  //Loop the forward stepping enough times for motion to be visible
  {
    pot = analogRead(A0);
    int mappedPot = map(pot, 0, 1023, 1, 50);
    int delayTime = mappedPot;
    digitalWrite(stp,HIGH); //Trigger one step forward
    delay(delayTime);
    digitalWrite(stp,LOW); //Pull step pin low so it can be triggered again
    delay(delayTime);
  }
}
else{
  resetEDPins();
}

}
//Reset Easy Driver pins to default states
void resetEDPins()
{
  digitalWrite(stp, LOW);
  digitalWrite(dir, LOW);
  digitalWrite(MS1, LOW);
  digitalWrite(MS2, LOW);
  digitalWrite(EN, HIGH);
}