#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <DHTesp.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)
// The pins for I2C are defined by the Wire-library.
// On an arduino UNO:       A4(SDA), A5(SCL)
// On an arduino MEGA 2560: 20(SDA), 21(SCL)
// On an arduino LEONARDO:   2(SDA),  3(SCL), ...
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const int DHT_PIN = 23;
DHTesp dhtSensor;

uint32_t anterior = 0;
uint32_t actual = 0;
uint16_t intervalo = 1000;

void setup() {
  // put your setup code here, to run once:
  Wire.begin();
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {
  // put your main code here, to run repeatedly:
  actual = millis();

  if (actual - anterior >= intervalo) {
    anterior = actual;
    TempAndHumidity  data = dhtSensor.getTempAndHumidity();
    display.clearDisplay();
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(0, 0);
    display.setTextSize(2);
    display.println("T: " + String(data.temperature, 1) + "C");
    display.println("H: " + String(data.humidity, 1) + "%");
    display.display();
  }
}