Visualizar estado Motor en LCD

Algunos cambios menores, pruebalo y nos dices que tal funciona

void loop() {
  
  unsigned int uS1 = sonar.ping_cm(); // activates the first sensor
  delay(50); // wait 50ms
  unsigned int uS2 = sonar1.ping_cm(); // activate the second sensor
  delay(50); // wait 50ms
                
  Serial.print("Ping: ");
  Serial.print(us1); 
  Serial.println("cm");
           
  Serial.print("Ping1: ");
  Serial.print(us2); 
  Serial.println("cm");
  delay(1000); 

  lcd.begin(16, 2); 
  lcd.print("  Tinaco= ");
  lcd.setCursor(1,1);
  lcd.print(" Cisterna=");

  

  if (uS1 < 20) { //if an object is less than 20 cm away
      //from the front sensor, 
      digitalWrite(Motor, HIGH);
      //the motor will rotate forward.
      // lcd.setCursor(X,Y);      // ajustar X,Y a lo que corresponda
      lcd.print("Motor ON");
  }


  if (uS2 < 20 |                  // if an object is less than 20 cm away from the back sensor, 
      (uS1  < 20 && uS2  < 20 ) | // if an object is less than 20 cm away from the right and left sensors,
      (uS1  > 20 && uS2  > 20 )) {
      digitalWrite(Motor, LOW);     //the motor will rotate backwards.
      // lcd.setCursor(X,Y);      // ajustar X,Y a lo que corresponda
      lcd.print("Motor OFF");   
  }
  delay(5000);
}