#define trig A1
#define echo A0
#define Buzzer A2

log waktu,jarak,T;

void setup() {
Serial.begin(9600)
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
pinMode (Buzzer, OUTPUT);
}
void setup() {
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, HIGH);
waktu = pulseIn(echo, HIGH);
T= waktu*0.034/2;
jarak= 2+T;
Serial.println(string() + "jarak :" + jarak + "cm");
delay(100);

if (jarak <= 10)
  { digitalWrite (Buzzer, HIGH);}
   else {digitalWrite (Buzzer, LOW);}
}