#include "DHT.h"
#include "SPI.h"
#include "SD.h"
#define DHTPIN 32
#define DHTTYPE DHT22
File DataFile;
DHT dht(DHTPIN, DHTTYPE);

void writeFile(const char *path, const char *message)
{
  DataFile = SD.open(path, FILE_WRITE);
  if (DataFile) {
    Serial.printf("Writing to %s ", path);
    Serial.printf(message);
    DataFile.close();
    Serial.print("complete");
  }
  else {
    Serial.printf("unable to open SD card");
  }
}

void ReadFile(const char * path){
  // open the file for reading:
  DataFile = SD.open(path);
  if (DataFile) {
     Serial.printf("Reading file from %s\n", path);
     // read from the file until there's nothing else in it:
    while (DataFile.available()) {
      Serial.write(DataFile.read());
    }
    DataFile.close(); // close the file:
  } 
  else {
    // if the file didn't open, print an error:
    Serial.println("error opening test.txt");
  }
}

void readDHT22() {
  delay(2000);
  // The DHT22 returns at most one measurement every 2s
  float h = dht.readHumidity();
  // Reads the humidity in %
  float t = dht.readTemperature();
  // Reads the temperature in degrees Celsius
  float f = dht.readTemperature(true);
  // true returns the temperature in Fahrenheit

  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed reception"));
    return;
    // Returns an error if the ESP32 does not receive any measurements
  }

  Serial.print("Humidite: ");
  Serial.print(h);
  Serial.print("%  Temperature: ");
  Serial.print(t);
  Serial.print("°C, ");
  Serial.print(f);
  Serial.println("°F");

}


void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  readDHT22();
}