//===================PROGRAM 1=====================
/* percobaan 1
#define echoPin 6 // Echo Pin 
#define trigPin 7 // Trigger Pin 
#define LEDPin 13 // Onboard LED
int maximumRange = 200; 
int minimumRange = 0; 
long duration, distance;
void setup() { 
Serial.begin (9600);
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT); 
pinMode(LEDPin, OUTPUT);
}

void loop() { 
digitalWrite(trigPin, LOW); 
delayMicroseconds(2); 
digitalWrite(trigPin, HIGH); 
delayMicroseconds(10);
digitalWrite(trigPin, LOW); 
duration = pulseIn(echoPin, HIGH); 
distance = duration/58.2;

if (distance >= maximumRange || distance <= minimumRange){ 
  Serial.println("-1");
  digitalWrite(LEDPin, HIGH);
}
else { 
  Serial.println(distance);
  digitalWrite(LEDPin, LOW);
}
delay(50);
}
//end percobaan 1*/


//===================PROGRAM 2=====================
/* percobaan 2
const int pwPin = 10; 
long pulse, inches, cm; 
int measure = 0;
void setup() { 
  Serial.begin(9600);
  pinMode(pwPin, INPUT);
}
void loop() { 
pulse = pulseIn(pwPin, HIGH); 
inches = pulse/147;
cm = inches*2.54;
Serial.println(cm); 
measure = measure + 1;
}
//end percobaan 2*/


//===================PROGRAM 3=====================
/*percobaan 3
int trigPin = 7; //Trig 
int echoPin = 6; //Echo
long duration, cm, meter; 
void setup() {
Serial.begin (9600); 
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT);
}
void loop() { 
digitalWrite(trigPin, LOW); 
delayMicroseconds(5); 
digitalWrite(trigPin, HIGH); 
delayMicroseconds(10); 
digitalWrite(trigPin, LOW); 
pinMode(echoPin, INPUT);
duration = pulseIn(echoPin, HIGH);

// convert jarak →cm dan meter 
cm = (duration/2) / 29.1;
meter = cm / 100; 
Serial.print(meter); 
Serial.print("m, "); 
Serial.print(cm); 
Serial.print("cm"); 
Serial.println();
delay(250);
}
//end percobaan 3*/


//===================LATIHAN 1=====================
/*LATIHAN 1
int trigPin = 7; //Trig 
int echoPin = 6; //Echo
long duration, cm, meter; 
void setup() {
Serial.begin (9600); 
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT);
}
void loop() { 
digitalWrite(trigPin, LOW); 
delayMicroseconds(5); 
digitalWrite(trigPin, HIGH); 
delayMicroseconds(10); 
digitalWrite(trigPin, LOW); 
pinMode(echoPin, INPUT);
duration = pulseIn(echoPin, HIGH);

// convert jarak →cm dan meter 
cm = (duration/2) / 29.1;
meter = cm / 100; 
Serial.print("Jarak Benda dengan Sensor Sejauh ");
Serial.print(meter);
Serial.print(" meter");  
Serial.println();
delay(250);
}
//end LATIHAN 1*/


//===================LATIHAN 1=====================
//LATIHAN 2

int trigpin = 7;
int echopin = 6;
int led[]={11,12,13};
long pulse, cm, inch, distance;

void setup(){
  Serial.begin(9600);
  pinMode(trigpin, OUTPUT);
  pinMode(echopin, INPUT);
  for(int i=0;i<3;i++){
    pinMode(led[i], OUTPUT);
  }
}

void loop(){
  digitalWrite(trigpin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigpin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigpin, LOW);
  pinMode(echopin, INPUT);
  pulse = pulseIn(echopin, HIGH);
  distance = pulse/58.2;
  inch = distance/147;
  cm = inch*2.54;
  Serial.println();
  delay(500);

  if (distance<=50){
    Serial.write("Jarak Benda adalah ");
    Serial.print(distance);
    Serial.print(" cm");
    digitalWrite(led[0], HIGH);
    digitalWrite(led[1], LOW);
    digitalWrite(led[2], LOW);
  }

  if (distance>=50 && distance<345){
    Serial.write("Jarak Benda adalah ");
    Serial.print(distance/147);
    Serial.print(" inch");
    digitalWrite(led[0], LOW);
    digitalWrite(led[1], HIGH);
    digitalWrite(led[2], LOW);
  }

  if (distance>=345){
    Serial.write("Jarak Benda adalah ");
    Serial.print(distance/100);
    Serial.print(" Meter");
    digitalWrite(led[0], LOW);
    digitalWrite(led[1], LOW);
    digitalWrite(led[2], HIGH);
  }
}
//end LATIHAN 2*/