// Wemos D1 mini temp sensor in each room
// SCL pin = d1 SDA = d2
// OLED display 128x64

//#define CAYENNE_DEBUG
//#define CAYENNE_PRINT Serial
#include <Wire.h>
#include <ESP8266WiFi.h>
#include <CayenneMQTTESP8266.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <Adafruit_GFX.h>
#include <ESP_Adafruit_SSD1306.h>
#define ONE_WIRE_BUS D4  // DS18B20 pin

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DS18B20(&oneWire);
#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);

char ssid[] = "ssid";
char wifiPassword[] = "pass";

// Cayenne authentication info.
char username[] = "username";
char password[] = "password";
char clientID[] = "clientID";

unsigned long lastMillis = 0;

void setup()
{
  Serial.begin(115200);   
  pinMode(D0, OUTPUT);
  // Initialize  display
  display.begin(SSD1306_SWITCHCAPVCC, 0x78>>1);
  //display.display();
  delay(500);
  display.clearDisplay();
  Cayenne.begin(username, password, clientID, ssid, wifiPassword);
}

void displayTemp(float temp)
{ 
  display.setTextSize(1);
  display.setCursor(32,0);
  display.println("Temperature");
  display.setTextSize(3);
  display.setTextColor(WHITE);
  display.setCursor(20,20);
  display.print(temp);
  display.display();
  display.clearDisplay();
}

void loop()
{  
  Cayenne.loop();
  DS18B20.requestTemperatures();  
  float tmp;
  tmp = (DS18B20.getTempCByIndex(0));     
   
  if (millis() - lastMillis > 10000)
  {
    lastMillis = millis();
    Cayenne.virtualWrite(0, tmp);    
  }
  displayTemp(tmp); 
}

CAYENNE_IN(1)
{
  int currentValue = getValue.asInt();
  if (currentValue == 1)
  {
    digitalWrite(D0, HIGH);
  }
  else
  {
    digitalWrite(D0, LOW);
  }
}

CAYENNE_IN_DEFAULT()
{
  CAYENNE_LOG("CAYENNE_IN_DEFAULT(%u) - %s, %s", request.channel, getValue.getId(), getValue.asString());  
}