#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <SPI.h>
#include <DHT.h>
#include "RTClib.h"
// Pin definitions for ESP32
#define TFT_DC    2
#define TFT_CS    15
#define TFT_RST   4
#define DHT_SENSOR_PIN 32
#define DHT_SENSOR_TYPE DHT22
#define BUZZ_PIN 5
#define POTPIN 25

// Initialize the display using the defined pins
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
DHT dht_sensor(DHT_SENSOR_PIN, DHT_SENSOR_TYPE);
RTC_DS1307 rtc;
int buzzLimit = 100;
int potRead = 0;

void setup() {
  Serial.begin(115200);
  tft.begin();
  tft.setRotation(1);
  tft.setTextSize(3);
  tft.setCursor(0, 0);
  tft.setTextColor(ILI9341_CYAN, ILI9341_BLACK);
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }

  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
}

void loop() {
  
  potRead = analogRead(POTPIN);
  buzzLimit = map(potRead, 0, 4098, 0, 80);
  float humi  = dht_sensor.readHumidity();    // read humidity
  float tempC = dht_sensor.readTemperature(); // read temperature
  DateTime now = rtc.now();

  if (isnan(tempC) || isnan(humi)) {
    Serial.println("Failed to read DHT22");
  }
  else {
    if(buzzLimit < tempC) tone(BUZZ_PIN, 262, 250);
    tft.setCursor(0, 0);  
    tft.print("Temp: ");
    tft.print(tempC);     // display the temperature
    tft.println("C");
    tft.print("Humi: ");
    tft.print(humi);      // display the humidity
    tft.println("%");
    tft.print("Time: ");
    tft.print(now.hour(), DEC);
    tft.print(':');
    tft.println(now.minute(), DEC);
    tft.print("Buzz limit: ");
    tft.print(buzzLimit);
    delay(100);
  }

    
}