int motorPin1 = 9; // GPIO Pin IN1
int motorPin2 = 8; // GPIO Pin IN2
int motorPin3 = 44; // GPIO Pin IN1
int motorPin4 = 7; // GPIO Pin IN2

int motorPin5 = 1; // GPIO Pin IN1
int motorPin6 = 2; // GPIO Pin IN2
int motorPin7 = 3; // GPIO Pin IN1
int motorPin8 = 4; // GPIO Pin IN2


void setup() {
  pinMode(motorPin1, OUTPUT);
  pinMode(motorPin2, OUTPUT);
  pinMode(motorPin3, OUTPUT);
  pinMode(motorPin4, OUTPUT);

  pinMode(motorPin5, OUTPUT);
  pinMode(motorPin6, OUTPUT);
  pinMode(motorPin7, OUTPUT);
  pinMode(motorPin8, OUTPUT);
}

void loop() {
  // Forward rotation
  analogWrite(motorPin1, 255);  // Speed (0–255)
  analogWrite(motorPin2, 0);
  analogWrite(motorPin3, 255);  // Speed (0–255)
  analogWrite(motorPin4, 0);
  
  analogWrite(motorPin5, 255);  // Speed (0–255)
  analogWrite(motorPin6, 0);
  analogWrite(motorPin7, 255);  // Speed (0–255)
  analogWrite(motorPin8, 0);
  delay(2000);

  // Stop
  analogWrite(motorPin1, 0);
  analogWrite(motorPin2, 0);
  analogWrite(motorPin3, 0);
  analogWrite(motorPin4, 0);
  
  analogWrite(motorPin5, 0);
  analogWrite(motorPin6, 0);
  analogWrite(motorPin7, 0);
  analogWrite(motorPin8, 0);
  delay(1000);

}