// Anschluss:
// VCC an 5V
// trig und echo an beliebige Pins
// GND an GND 

#define trigPin 10  //beliebiger Pin
#define echoPin 13  //beliebiger Pin

float duration, distance;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:


digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);

duration = pulseIn(echoPin, HIGH);
distance = (duration/2)* 0.0343;

Serial.print("Sensor 1: ");
if(distance >= 400 || distance <= 2)
{
  Serial.println("Außer Reichweite");
}
else
{
  Serial.print(distance);
  Serial.println(" cm");
}
delay(500);
}