#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int triggerPin = 11;
const int echoPin = 12;

int tinggiMax = 150; //150cm atau 1.5m
long duration;
int jos;

void setup() {
  lcd.init();
  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT);

  lcd.setCursor(0,0);
  lcd.print("Tinggi Badan");
  lcd.setCursor(0,1);
  lcd.print("Objek");
  delay(5000);
}

void loop() {
  lcd.clear();

  long duration, jos;
  int tinggiBadan;
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(8);

  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(triggerPin, LOW);

  duration = pulseIn(echoPin, HIGH);
  // Calculating the distance
  jos = duration * 0.034 / 2;
  tinggiBadan = tinggiMax-jos;

  lcd.setCursor(0,0);
  lcd.print("TB:");
  lcd.print(tinggiBadan);
  lcd.print("cm");
  delay(1000);
}