Stepper Motors

int enPin = 4;
int dirPin = 2;
int stepPin = 3;
int stepAmount = 400;
int microSteps = 16; // 16 means 1/16, 32 means 1/32 etc.

void setup() {
  // put your setup code here, to run once:
  pinMode(dirPin, OUTPUT);
  pinMode(stepPin, OUTPUT);
  pinMode(enPin, OUTPUT);
  digitalWrite(dirPin, HIGH);
  digitalWrite(enPin, LOW);
}

void loop() {
  oneFullRotation();
  delay(1000);
}

void oneStep() {
  digitalWrite(stepPin, HIGH);
  delayMicroseconds(100);
  digitalWrite(stepPin, LOW);
  delayMicroseconds(100);
}

void oneFullRotation() {
  for (int i = 0; i < stepAmount * microSteps; i++) {
    oneStep();
  }
}