// Global variables
int timeDelay = 3000;

void setup(){
  // declaring the four pins to be outputs
  pinMode(34, OUTPUT);
  pinMode(32, OUTPUT);
  pinMode(30, OUTPUT);
  pinMode(28, OUTPUT);
  // setting the inital state of the electromagnets
  digitalWrite(34, HIGH);
  digitalWrite(32, LOW);
  digitalWrite(30, LOW);
  digitalWrite(28, HIGH);
  delay(10); // a small time delay to allow the motor to move
}// end of setup

void loop(){
  for(int i=0; i<202; i++){ // looping through this chunk of code for ~ a full rotation
    digitalWrite(30, LOW);
    digitalWrite(34, HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(28, LOW);
    digitalWrite(32, HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(34, LOW);
    digitalWrite(30, HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(32, LOW);
    digitalWrite(28, HIGH);
    delayMicroseconds(timeDelay);
  }// end of looping
  // preparing the electromagnets to go the other direction
  digitalWrite(32, HIGH);
  digitalWrite(28, LOW);
  delayMicroseconds(timeDelay*500);
  
  
  for(int j=0; j<204; j++){ // looping through this chunk of code for ~ a full rotation in the other direction
    digitalWrite(30, LOW);
    digitalWrite(34, HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(28, HIGH);
    digitalWrite(32, LOW);
    delayMicroseconds(timeDelay);
    digitalWrite(34, LOW);
    digitalWrite(30, HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(32, HIGH);
    digitalWrite(28, LOW);
    delayMicroseconds(timeDelay);
  }// end of looping
  // preparing the electromagnets to go the other direction
  digitalWrite(32, LOW);
  digitalWrite(28, HIGH); 
  delayMicroseconds(timeDelay*500);
  
}//end of loop