#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>
#include <DHT.h>

#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 4 // Define the number of displays connected
#define CLK_PIN    13 // CLK or SCK
#define DATA_PIN   11 // DATA or MOSI
#define CS_PIN     3 // CS or SS
#define DHTPIN 5
#define DHTTYPE DHT22   
#define MAX_MESG   20

char szMesg[MAX_MESG + 1] = "";
float temperature;
float humidity;

MD_Parola myDisplay = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
DHT dht = DHT(DHTPIN, DHTTYPE);
uint8_t degC[] = { 6, 3, 3, 56, 68, 68, 68 }; // Deg C

void setup() {
  // Intialize the object
  myDisplay.begin();

  myDisplay.setIntensity(0);

  myDisplay.displayClear();
  myDisplay.addChar('$', degC);

  dht.begin();

  
}

void loop() {
  temperature = dht.readTemperature();
  humidity = dht.readHumidity();
  
  myDisplay.setTextAlignment(PA_CENTER); // PA_LEFT PA_RIGHT
  myDisplay.setInvert(false);

  dtostrf(temperature, 3, 1, szMesg);
  strcat(szMesg, "$");
  myDisplay.print(szMesg);
  delay(3000);

  dtostrf(humidity, 3, 1, szMesg);
  strcat(szMesg, "%");
  myDisplay.print(szMesg);
  delay(3000);
}