//Knihovny pro ESP8266, MAX6675 a ThingSpeak:

#include <ESP8266WiFi.h>
#include <MAX6675_Thermocouple.h>
#include <ThingSpeak.h>

//Definice pro MAX6675:

#define SCK_PIN 14 // D5
#define CS_PIN 4 // D2
#define SO_PIN 5 // D1
#define CS2_PIN 0 // D3

MAX6675_Thermocouple* thermocouple = NULL;
MAX6675_Thermocouple* thermocouple2 = NULL;

//Spusteni weboveho serveru:

WiFiClient klient;
WiFiServer server(80);

//Udaje pro ThingSpeak:

unsigned long ID_kanalu = 600888;
const char * Write_API_Key = "I32RUVEGBQU3KGN4";

//SSID a heslo pro Wi-Fi:

const char* SSID = "*****************";
const char* heslo = "*************************";

void setup(){
	//Spusteni seriove linky na senzoru:

	Serial.begin(115200);
	thermocouple = new MAX6675_Thermocouple(SCK_PIN, CS_PIN, SO_PIN);
	thermocouple2 = new MAX6675_Thermocouple(SCK_PIN, CS2_PIN, SO_PIN);

	//Pripojeni k Wi-Fi a spusteni ThingSpeak serveru:

	Serial.println();
	Serial.println();
	Serial.print("Pripojovani k ");
	Serial.println(SSID);

	WiFi.begin(SSID, heslo);

	while (WiFi.status() != WL_CONNECTED){
		delay(500);
		Serial.print(".");
	}
	Serial.println("");
	Serial.println("Pripojeno!");

	Serial.println(WiFi.localIP());

	ThingSpeak.begin(klient);
}

void loop(){
	//Zmereni udaju a vypsani do seriove linky:

	const double celsius = thermocouple->readCelsius();
	const double celsius2 = thermocouple2->readCelsius();

	Serial.print("Teplota - senzor 1: ");
	Serial.println(String(celsius) + " st. C");
	Serial.print("Teplota - senzor 2: ");
	Serial.println(String(celsius2) + " st. C");
	delay(2000);

	//Odeslani na ThingSpeak:

	ThingSpeak.writeField(ID_kanalu, 1, String(celsius), Write_API_Key);
	delay(20000);
	ThingSpeak.writeField(ID_kanalu, 2, String(celsius2), Write_API_Key);
	delay(20000);

}