#include "DHT.h"
#define DHTPIN 23 
#define DHTTYPE DHT22
#define botton1 34
#define ledVermelho 13
#define ledVerde 12
float minimo = 40;
float medio = 60;
float h;
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET -1


Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  Serial.println(F("DHTxx test!"));
  pinMode(botton1, INPUT);
  pinMode(ledVermelho, OUTPUT);
  pinMode(ledVerde, OUTPUT);
  digitalWrite(ledVermelho, LOW);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.display();
  delay(2000);
  display.clearDisplay();

  dht.begin();
}

void loop() {
  digitalWrite(ledVermelho, LOW);
  digitalWrite(ledVerde, LOW);
  h = dht.readHumidity();
  
  float t = dht.readTemperature(); 
  float f = dht.readTemperature(true);
  if (digitalRead(botton1) == 0){  
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }
 
  float hif = dht.computeHeatIndex(f, h);  
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));
  delay(500);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0,0);
  display.println("Temperatura: " + String(t) + " *C");
  display.println("Umidade: " + String(h) + " %");
  display.display();
  delay(2000);
  display.clearDisplay();
  }

  if (h > medio){
    digitalWrite(ledVermelho, HIGH);
    digitalWrite(ledVerde, HIGH);
  } else if (h <= minimo) {
    digitalWrite(ledVermelho, HIGH);
  } else if (h > minimo || h < medio) {
    digitalWrite(ledVerde, HIGH);
  }
}