// pin 9 trigger 
// pin 10 echo 
const int pTrig = 9; 
const int pEcho = 10; 
void setup() 
{ Serial.begin(9600); 
pinMode(pTrig, OUTPUT); 
pinMode(pEcho, INPUT); 
} 
long durasi = 0; 
void loop() { 
// trigger selama 10µs 
digitalWrite(pTrig, HIGH); 
delayMicroseconds(10); 
 digitalWrite(pTrig, LOW); 
 
 durasi = pulseIn(pEcho, HIGH); 
 Serial.print("Durasi: "); 
 Serial.print(durasi); 
 
 Serial.print(", Jarak: "); 
 Serial.println((durasi *0.034)/2); 
delay(1000); 
}