#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);
}