const int dirPin = 1;  // DIR pin connected to digital pin 1
const int stepPin = 0; // STEP pin connected to digital pin 0

enum MotorState { STOP, TURN_RIGHT, TURN_LEFT };
MotorState currentState = STOP;

void setup() {
  Serial.begin(57600); // Initialize serial communication at 9600 baud
  pinMode(dirPin, OUTPUT); // Set direction pin as output
  pinMode(stepPin, OUTPUT); // Set step pin as output
}

void loop() {
  while (Serial.available() == 0) { // Wait for user input
    delay(10); // Small delay to avoid busy waiting
  }

  char motor = Serial.read();
  char direction = Serial.read();

if (motor == 'B' || motor == 'b') {
    if (direction == 'R' || direction == 'r') {
      Serial.println("Motor B turning Right!");
      right();
    } else if (direction == 'L' || direction == 'l') {
      Serial.println("Motor B turning Left!");
      left();
    } else {
      Serial.println("Invalid direction. Use R or L.");
    }
  } else {
    Serial.println("Invalid motor. Use A or B.");
  }
}

void right() {
  // Set direction to clockwise
  digitalWrite(dirPin, HIGH);
  Serial.println("Clockwise");
  for (int i = 0; i < 200; i++) {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(1000); // 1 ms delay
    digitalWrite(stepPin, LOW);
    delayMicroseconds(1000); // 1 ms delay
  }
}

void left() {
  // Set direction to clockwise
  digitalWrite(dirPin, LOW);
  Serial.println("Counter-Clockwise");
  for (int i = 0; i < 200; i++) {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(1000); // 1 ms delay
    digitalWrite(stepPin, LOW);
    delayMicroseconds(1000); // 1 ms delay
  }
}