// Motor pins
const int dirPin1 = 2;
const int stepPin1 = 3;
const int dirPin2 = 4;
const int stepPin2 = 5;

// Button pins
const int button1Pin = 6;
const int button2Pin = 7;

void setup() {
  pinMode(stepPin1, OUTPUT);
  pinMode(dirPin1, OUTPUT);
  pinMode(stepPin2, OUTPUT);
  pinMode(dirPin2, OUTPUT);

  pinMode(button1Pin, INPUT_PULLUP); // Buttons wired to GND, so use internal pull-up
  pinMode(button2Pin, INPUT_PULLUP);

  // Set initial direction forward for both motors
  digitalWrite(dirPin1, HIGH);
  digitalWrite(dirPin2, LOW);
}

void loop() {
  // Check button 1 press
  if (digitalRead(button1Pin) == LOW) {  // Button pressed (active LOW)
    stepMotor(stepPin1);
    delay(50); // Debounce + speed limit
  }

  // Check button 2 press
  if (digitalRead(button2Pin) == LOW) {  // Button pressed (active LOW)
    stepMotor(stepPin2);
    delay(50); // Debounce + speed limit
  }
}

void stepMotor(int stepPin) {
  digitalWrite(stepPin, HIGH);
  delayMicroseconds(800);
  digitalWrite(stepPin, LOW);
  delayMicroseconds(800);
}