#include <LiquidCrystal_I2C.h>
#include "DHTesp.h"
int lcdColumns = 16;
int lcdRows = 2;
const int DHT_PIN = 15;
const int Button = 23;
int ledr = 13;
int ledg = 12;
int trigPin = 5;
int echoPin = 18;
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.393701
long duration;
float distanceCm;
float distanceInch;
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);
DHTesp dhtSensor;

void setup() {
  pinMode(ledr, OUTPUT);
  pinMode(ledg, OUTPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, OUTPUT);
  pinMode(Button, INPUT);
  lcd.init();
  lcd.backlight();
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distanceCm = duration * SOUND_SPEED/2;
  distanceInch = distanceCm * CM_TO_INCH;
  int cel = data.temperature;
  int push_button = digitalRead(Button);
  if (push_button == HIGH) {
    lcd.setCursor(0, 0);
    lcd.print("Temp: " + String(data.temperature, 2) + "C");
    delay(500);
    lcd.clear();
    lcd.setCursor(0, 1);
    lcd.print("Humidity: " + String(data.humidity, 1) + "%");
    delay(500);
    lcd.clear();
    if(cel >= 37) {
      digitalWrite(ledr, HIGH);
      digitalWrite(ledg, LOW);
    lcd.setCursor(0, 0);
    lcd.print("Hot Weather");
    delay(500);
    }else{
      digitalWrite(ledr, LOW);
      digitalWrite(ledg, HIGH);
    lcd.setCursor(0, 0);
    lcd.print("Cold Weather");
    delay(250);
    }
    delay(250);
    lcd.setCursor(0,0);
    lcd.print("Dist(cm): ");
    lcd.println(distanceCm);
    lcd.setCursor(0,1);
    lcd.print("Dist(inch): ");
    lcd.println(distanceInch);
    delay(500);
    lcd.clear();
  }
  else {
  }
}