CommandeRelais.ino

#include <SPI.h>
#include "Adafruit_MAX31855.h"

// Default connection is using software SPI, but comment and uncomment one of
// the two examples below to switch between software SPI and hardware SPI:

// Example creating a thermocouple instance with software SPI on any three
// digital IO pins.
#define MAXDO   3
#define MAXCS   4
#define MAXCLK  5

// initialize the Thermocouple
Adafruit_MAX31855 thermocouple(MAXCLK, MAXCS, MAXDO);

// Example creating a thermocouple instance with hardware SPI
// on a given CS pin.
//#define MAXCS   10
//Adafruit_MAX31855 thermocouple(MAXCS);


void setup() {
  // init the reading of the thermocouple
  Serial.begin(9600);

  while (!Serial) delay(1); // wait for Serial on Leonardo/Zero, etc

  Serial.println("MAX31855 test");
  // wait for MAX chip to stabilize
  delay(500);

/*    
 * // init of the relay
 * pinMode(13, OUTPUT);  
 */
}

void loop() {
  // basic readout test, just print the current temp
  Serial.print("Internal Temp = ");
  Serial.println(thermocouple.readInternal());

  double c = thermocouple.readCelsius();
  if (isnan(c)) {
    Serial.println("Something wrong with thermocouple!");
  } else {
    Serial.print("C = ");
    Serial.println(c);
  }
  //Serial.print("F = ");
  //Serial.println(thermocouple.readFahrenheit());

  delay(1000);
/*
  // should command the relay, open when the temperature is higher than the control value, closed when the temperature is lower than the control value,
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, LOW); 
  delay(1000); 
*/
}