nodemcu_dhtmodule.cpp

/**
* Sensor de Temperatura e Umidade, com seus valores mostrados em um display Nokia 5110
*/

#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>
#include <dht.h>

#define dht_dpin D4
dht DHT;

// pin D8 - Serial clock out (SCLK)
// pin D7 - Serial data out (DIN)
// pin D6 - Data/Command select (D/C)
// pin D5 - LCD chip select (CS/CE)
// pin D2 - LCD reset (RST)
Adafruit_PCD8544 display = Adafruit_PCD8544(D8, D7, D6, D5, D2);
int temperature, humidity;

void setup()
{
  Serial.begin(115200);
  display.begin();
  display.setContrast(60);
  display.clearDisplay();
  display.display();
}

void loop()
{
  DHT.read11(dht_dpin);
  temperature = DHT.temperature;
  humidity = DHT.humidity;

  Serial.println(temperature);
  Serial.println(humidity);

  display.setTextColor(BLACK, WHITE);
  display.setCursor(3, 5);
  display.print("Temp : ");  
  display.print(temperature);
  display.setCursor(65,5);
  display.println("C");
  display.setCursor(3,13);
  display.print("Umid : ");
  display.print(humidity);
  display.println(" %");
  display.display();
  display.clearDisplay();

  delay(1000);  
}