Robolink Rodeo robot motor test

rodeoMotorTest.ino

//Robolink Rodeo robot motor test.
//Robot purchase link: https://www.robolinkmarket.com/arama?q=rodeo
//dMoto image link: https://www.robolinkmarket.com/dmoto-robot-kontrol-karti-lite-robotik-kartlar-robolink-teknoloji-11048-62-B.jpg
const int m1Dir = 2; //m1: Left motor
const int m2Dir = 7; //m2: Right motor
const int m1En = 5;
const int m2En = 6;
const int speed = 100;

void setup() {
  pinMode(m1Dir, OUTPUT);
  pinMode(m2Dir, OUTPUT);
  pinMode(m1En , OUTPUT);
  pinMode(m2En, OUTPUT);
  Serial.begin(9600);
}

void testMotor(int mDir, int mEn) {
  Serial.println("Forward for 3s...");
  digitalWrite(mDir, HIGH);
  analogWrite(mEn, speed);
  delay(3000);
  Serial.println("Stop for 1s...");
  analogWrite(mEn, 0);
  delay(1000);
  Serial.println("Backward for 3s...");
  digitalWrite(mDir, LOW);
  analogWrite(mEn, speed);
  delay(3000);
  analogWrite(mEn, 0);
}

void loop() {
  Serial.println("*** Motor 1 (left) tests ***");
  testMotor(m1Dir, m1En);
  Serial.println("*** Motor 2 (right) tests ***");
  testMotor(m2Dir, m2En);
}