#include <LiquidCrystal.h>
#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT22

#define BTN_GREEN 13
#define BTN_RED 14

#define LED_GREEN 5
#define LED_RED 6

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  pinMode(BTN_GREEN, INPUT_PULLUP);
  pinMode(BTN_RED, INPUT_PULLUP);

  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_RED, OUTPUT);

  digitalWrite(LED_GREEN, LOW);
  digitalWrite(LED_RED, LOW);

  lcd.begin(16, 2);
  dht.begin();

  lcd.setCursor(0, 0);
  lcd.print("Red = T");
  lcd.setCursor(0, 1);
  lcd.print("Green = H");
}

void loop() {

  // ЗЕЛЕНАЯ КНОПКА → ВЛАЖНОСТЬ
  if (digitalRead(BTN_GREEN) == LOW) {
    float h = dht.readHumidity();

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("H = ");
    lcd.print(h);
    lcd.print("%");

    digitalWrite(LED_GREEN, HIGH);
    digitalWrite(LED_RED, LOW);

    delay(500);
  }

  // КРАСНАЯ КНОПКА → ТЕМПЕРАТУРА
  if (digitalRead(BTN_RED) == LOW) {
    float t = dht.readTemperature();

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("T = ");
    lcd.print(t);
    lcd.print(" C");

    digitalWrite(LED_RED, HIGH);
    digitalWrite(LED_GREEN, LOW);

    delay(500);
  }
}