int ledmerah = 13;
int ledhijau = 12;
#define ECHO_PIN 10
#define TRIG_PIN 11
#include <Servo.h>
Servo servoku;
int sudut;
void setup() {
  servoku.attach(9);
  pinMode(ledmerah, OUTPUT);
  pinMode(ledhijau, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

}
float jarak_cm(){
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  int durasi = pulseIn(ECHO_PIN, HIGH);
  return durasi*0.034/2;
   }

void loop() {
  float jarak=jarak_cm();
  if(jarak>150){
  digitalWrite(ledmerah, HIGH);
  digitalWrite(ledhijau, LOW);
  servoku.write(90);
  }
  else {
   digitalWrite(ledmerah, LOW);
   digitalWrite(ledhijau, HIGH);
  servoku.write(0); 
  }
  // put your main code here, to run repeatedly:

}