#define PIN_TRIG 25
#define PIN_ECHO 26
#define LEFT_PIN 19
#define RIGHT_PIN 18


void changeState(int distanceCM){
    if (distanceCM < 10) {
       digitalWrite(RIGHT_PIN, LOW);
    } else {
      digitalWrite(RIGHT_PIN, HIGH);
    }
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  pinMode(LEFT_PIN, OUTPUT);
  pinMode(RIGHT_PIN, OUTPUT);
  digitalWrite(RIGHT_PIN, HIGH);
  digitalWrite(LEFT_PIN, HIGH);
  Serial.println("Project ready");
}

void loop() {
  // put your main code here, to run repeatedly:
    digitalWrite(PIN_TRIG, HIGH);
    delayMicroseconds(10);
    digitalWrite(PIN_TRIG, LOW);
    // Считываем результат:
    int duration = pulseIn(PIN_ECHO, HIGH);
    int distanceCM = duration / 58;
    changeState(distanceCM);

    delay(10); // this speeds up the simulation
}