/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/

#include "DHTesp.h"
//#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const byte DHT_PIN = 15;
byte Rele = 12;
int counter = 0;
bool Flag=true;
bool PrevFlag=false;

DHTesp dhtSensor;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(Rele, OUTPUT);
  
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  } display.clearDisplay();

  display.setTextColor(WHITE);


  display.setTextSize(1);
  display.setCursor(5,0);
  display.print("Iam Jelly Fish --'");
  display.display();
  delay(3000);

  display.clearDisplay();
}

void loop() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  if (isnan(data.temperature) || isnan(data.humidity)) {
    Serial.println("Failed to read from DHT sensor!");
  }

  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  delay(100);

  if (data.temperature <= 20 || data.humidity >=40){
    digitalWrite(Rele, HIGH);
    counter++;
  } else {
    digitalWrite(Rele, LOW);
  }

  // clear display
  display.clearDisplay();
  
  // display temperature
  display.setTextSize(1);
  display.setCursor(0,0);
  display.print("Suhu: ");
  display.setTextSize(2);
  display.setCursor(0,10);
  display.print(data.temperature);
  display.print(" ");
  display.setTextSize(1);
  display.cp437(true);
  display.write(167);
  display.setTextSize(1);
  display.print("C");
  
  // display humidity
  display.setTextSize(1);
  display.setCursor(0, 35);
  display.print("Kelembaban: ");
  display.setTextSize(1);
  display.setCursor(0, 45);
  display.print(data.humidity);
  display.print(" %");

  //cnt
  display.setTextSize(1);
  display.setCursor(80, 35);
  display.print("Counter: ");
  display.setTextSize(1);
  display.setCursor(80, 45);
  display.print(counter);
  display.print(" x");

  display.display();
}