int Asteppin = 0;
int Adirpin = 1;
int Bsteppin = 2;
int Bdirpin = 3;
int Csteppin = 4;
int Cdirpin = 5;
int Dsteppin = 14;
int Ddirpin = 15;
int stepdelay = 1000;
void setup() {
  pinMode(Asteppin, OUTPUT);
  pinMode(Adirpin, OUTPUT);
  pinMode(Bsteppin, OUTPUT);
  pinMode(Bdirpin, OUTPUT);
  pinMode(Csteppin, OUTPUT);
  pinMode(Cdirpin, OUTPUT);
  pinMode(Dsteppin, OUTPUT);
  pinMode(Ddirpin, OUTPUT);
  Serial.begin(9600);
  
}

void loop() {
  int val = analogRead(16);
  Serial.println(val);



  if(val<400)  {
  
  
    digitalWrite(Adirpin, LOW);
    digitalWrite(Bdirpin, LOW);
    digitalWrite(Cdirpin, LOW);
    digitalWrite(Ddirpin, LOW);//direction pin either LOW or HIGH to move in either direction.
    digitalWrite(Asteppin, HIGH);
    digitalWrite(Bsteppin, HIGH);
    digitalWrite(Csteppin, HIGH);
    digitalWrite(Dsteppin, HIGH);
    delayMicroseconds(stepdelay);
    digitalWrite(Asteppin, LOW);
    digitalWrite(Bsteppin, LOW);
    digitalWrite(Csteppin, LOW);
    digitalWrite(Dsteppin, LOW);
    delayMicroseconds(stepdelay);
  
     
  }else if(val>600)  {
  
    digitalWrite(Adirpin, HIGH);
    digitalWrite(Bdirpin, HIGH);
    digitalWrite(Cdirpin, HIGH);
    digitalWrite(Ddirpin, HIGH);
    digitalWrite(Asteppin, HIGH);
    digitalWrite(Bsteppin, HIGH);
    digitalWrite(Csteppin, HIGH);
    digitalWrite(Dsteppin, HIGH);
    delayMicroseconds(stepdelay);
    digitalWrite(Asteppin, LOW);
    digitalWrite(Bsteppin, LOW);
    digitalWrite(Csteppin, LOW);
    digitalWrite(Dsteppin, LOW);
    delayMicroseconds(stepdelay);
  
  }else{
    digitalWrite(Adirpin, LOW);
    digitalWrite(Bdirpin, LOW);
    digitalWrite(Cdirpin, LOW);
    digitalWrite(Ddirpin, LOW);
    digitalWrite(Asteppin, HIGH);
    digitalWrite(Bsteppin, HIGH);
    digitalWrite(Csteppin, HIGH);
    digitalWrite(Dsteppin, HIGH);
    delayMicroseconds(stepdelay);
    digitalWrite(Asteppin, HIGH);
    digitalWrite(Bsteppin, HIGH);
    digitalWrite(Csteppin, HIGH);
    digitalWrite(Dsteppin, HIGH);
    delayMicroseconds(stepdelay);
  }
}
  
/*  /if(500<val)  {
  
  digitalWrite(dirpin, LOW); //direction pin either LOW or HIGH to move in either direction.
  digitalWrite(steppin, HIGH);
  delayMicroseconds(stepdelay);
  digitalWrite(steppin, LOW);
  delayMicroseconds(stepdelay);
  
     
  }*/