Maia Jr Challenge

//novo codigo Maia Jr
// C++ code
//
int Ultrasonic = 0;
int UltrasonicD = 0;
int UltrasonicE = 0;
long readUltrasonicDistance(int triggerPin, int echoPin)
{
  pinMode(triggerPin, OUTPUT); 
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPin, LOW);
  pinMode(echoPin, INPUT);
  return pulseIn(echoPin, HIGH);
}
void setup()
{
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  Ultrasonic = 0.01723 * readUltrasonicDistance(13, 2);
  UltrasonicD = 0.01723 * readUltrasonicDistance(10, 11);
  UltrasonicE = 0.01723 * readUltrasonicDistance(12, 9);
  if (Ultrasonic <= 10) {
    // M. DIREITA
    analogWrite(3, 100);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    // M. ESQUERDA
    analogWrite(6, 100);
    digitalWrite(7, LOW);
    digitalWrite(8, LOW);
    delay(700); // Espera 700 millisegundos
    Serial.println(Ultrasonic);
  }
  if (UltrasonicD <= 15){
    // M. DIREITA
    analogWrite(3, 100);
    digitalWrite(4, HIGH);
    digitalWrite(5, LOW);
    // M. ESQUERDA
analogWriete (6, 100);
    digitalWrite(7, LOW);
    digitalWrite(8, HIGH);
  }
  if (UltrasonicE <= 15){
    // M. DIREITO
    analogWrite(3, 100);
    digitalWrite(4, HIGH);
    digitalWrite(5, LOW);
    // M. ESQUERDA 
    analogWrite(6, 100);
    digitalWrite(7, LOW);
    digitalWrite(8, HIGH);
  }
 }