#define EMULATOR

#ifdef EMULATOR

#include "dht20stub.h"
DHT20stub DHT(&Wire1);  // my stub dth20 library 

#else

#include "dht20.h"
DHT20 DHT(&Wire1);  // the original dht20 library

#endif

#define red 6
#define blue 5
#define green 4

void setup()
{
  pinMode(red, OUTPUT);
  pinMode(blue, OUTPUT);
  pinMode(green, OUTPUT);

  Serial.begin(115200);
  Serial.println(__FILE__);
  Serial.print("DHT20 LIBRARY VERSION: ");
  Serial.println(DHT20_LIB_VERSION);
  Serial.println();

  Wire1.begin(7, 8);  //  select your pin numbers here

  delay(2000);

  Serial.println("Type,\tStatus,\tHumidity (%),\tTemperature (C)");
}


void loop()
{
  //  READ DATA
  Serial.print("DHT20, \t");
  int status = DHT.read();
  switch (status)
  {
    case DHT20_OK:
      Serial.print("OK,\t");
      break;
    case DHT20_ERROR_CHECKSUM:
      Serial.print("Checksum error,\t");
      break;
    case DHT20_ERROR_CONNECT:
      Serial.print("Connect error,\t");
      break;
    case DHT20_MISSING_BYTES:
      Serial.print("Missing bytes,\t");
      break;
    case DHT20_ERROR_BYTES_ALL_ZERO:
      Serial.print("All bytes read zero");
      break;
    case DHT20_ERROR_READ_TIMEOUT:
      Serial.print("Read time out");
      break;
    case DHT20_ERROR_LASTREAD:
      Serial.print("Error read too fast");
      break;
    default:
      Serial.print("Unknown error,\t");
      break;
  }

  //  DISPLAY DATA, sensor has only one decimal.
  float temp = DHT.getTemperature();

  Serial.print(DHT.getHumidity(), 1);
  Serial.print(",\t\t");
  Serial.println(temp, 1);

  if (temp > 22) {
    digitalWrite(red, HIGH);
    digitalWrite(blue, LOW);
    digitalWrite(green, LOW);
  }
  else if (temp < 5) {
    digitalWrite(blue, HIGH);
    digitalWrite(green, LOW);
    digitalWrite(red, LOW);
  }
  else {
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
    digitalWrite(blue, LOW);
  }

  delay(2000);
}