#include "HX711.h"
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2); 

const int TRIG_PIN = 7;
const int ECHO_PIN = 8;

#define DATA_PIN 1
#define CLOCK_PIN 2

HX711 hx711;

void setup() {
  pinMode(TRIG_PIN, OUTPUT);
  digitalWrite(TRIG_PIN, LOW);
   lcd.begin();
  lcd.backlight();
  lcd.setCursor(0, 0);
  delay(1500);
  lcd.clear();
  pinMode(ECHO_PIN, INPUT);
  hx711.begin(DATA_PIN, CLOCK_PIN);

  hx711.set_scale(420.0983);
  hx711.tare();

  Serial.begin(96000);
}

void loop() {
   unsigned long t1;
  unsigned long t2;
  unsigned long pulse_width;
  float height;
  float weight;

  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);


  while ( digitalRead(ECHO_PIN) == 0 );


  t1 = micros();
  while ( digitalRead(ECHO_PIN) == 1);
  t2 = micros();
  pulse_width = t2 - t1;

  weight = hx711.get_units(0);
  height = pulse_width / 58.7;

    lcd.setCursor(0,0);
    lcd.print("H:");
    lcd.print(height);
    lcd.print("Cm");
    lcd.setCursor(0,1);
    lcd.print("W:");
    lcd.print(weight);
    lcd.print("Kg");

  delay(1000);
}