#include <LiquidCrystal.h>
#define  pintriger 13
#define pinecho 12 
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
float H2,HT,H1;
long durasi;

void setup()
{
  Serial.begin(9600);
  pinMode(pintriger, OUTPUT);
  pinMode(pinecho, INPUT);
  lcd.begin(16, 2);
  lcd.print("Alat pengukur");
  lcd.setCursor(0, 1);
  lcd.print("Tinggi badan");
  delay(500);
  HT=200;
}
void loop()
{
  digitalWrite(pintriger, LOW);
  delayMicroseconds(2);
  digitalWrite(pintriger, HIGH);
  delayMicroseconds(10);
  digitalWrite(pintriger, LOW);
  delayMicroseconds(2);
  durasi = pulseIn(pinecho, HIGH);
  H1 = (durasi * 0.0343)/2;
  H2 = HT - H1;
  lcd.clear();
  lcd.setCursor(2, 0);
  lcd.print("Tinggi badan");
  lcd.setCursor(4, 1);
  lcd.print(H2);
  lcd.print("cm");
  delay(500);
}