#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
#include <OneWire.h>
#include <DallasTemperature.h>
#include <CayenneMQTTEthernet.h>
#include <Wire.h>
#include <LiquidCrystal_PCF8574.h>

// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "";
char password[] = "";
char clientID[] = "";

#define SENSOR_PIN 2 // Do not use digital pins 0 or 1 since those conflict with the use of Serial.

OneWire oneWire(SENSOR_PIN);
DallasTemperature sensors(&oneWire);
LiquidCrystal_PCF8574 lcd(0x27);  // set the LCD address to 0x27 for a 16 chars and 2 line display
int show;

void setup()
{
  int error;

  Serial.begin(115200);
  Serial.println("LCD...");

  while (! Serial);

  Serial.println("Dose: check for LCD");
  Wire.begin();
  Wire.beginTransmission(0x27);
  error = Wire.endTransmission();
  Serial.print("Error: ");
  Serial.print(error);

  if (error == 0) {
    Serial.println(": LCD found.");

  } else {
    Serial.println(": LCD not found.");
  } // if

  lcd.begin(16, 2); // initialize the lcd
  show = 0;

 // Serial.begin(9600);
  Cayenne.begin(username, password, clientID);
  sensors.begin();
}

void loop()
{
  Cayenne.loop();
}

// This function is called at intervals to send sensor data to Cayenne.
CAYENNE_OUT_DEFAULT()
{
  // Send the command to get temperatures.
  sensors.requestTemperatures();
  // This command writes the temperature in Celsius to the Virtual Channel.
  Cayenne.celsiusWrite(0, sensors.getTempCByIndex(0));
  Cayenne.celsiusWrite(1, sensors.getTempCByIndex(1));

  lcd.setBacklight(255);
  float temperature0 = sensors.getTempCByIndex(0);
  float temperature1 = sensors.getTempCByIndex(1);
  lcd.home(); lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(F("Zasilanie "));
  lcd.print(temperature0);
  lcd.print(F("C"));
  lcd.setCursor(0, 1);
  lcd.print(F("Powrot    "));
  lcd.print(temperature1);
  lcd.println(F("C"));
}