Help for Jay Subramaniam

gistfile1.c

/*
 Example sketch for the RFCOMM/SPP Bluetooth library - developed by Kristian Lauszus
 For more information visit my blog: http://blog.tkjelectronics.dk/ or 
 send me an e-mail:  [email protected]
 */

#include <Adafruit_MAX31855.h>
#include <SPP.h>
USB Usb;
BTD Btd(&Usb); // You have to create the Bluetooth Dongle instance like so

/* You can create the instance of the class in two ways */
SPP SerialBT(&Btd); // This will set the name to the defaults: "Arduino" and the pin to "1234"
//SPP SerialBT(&Btd, "Lauszus's Arduino","0000"); // You can also set the name and pin like so

Adafruit_MAX31855 thermocouple(3, 4, 5);
unsigned long lastTime;

void setup() {
  Serial.begin(115200);
  if (Usb.Init() == -1) {
    Serial.print(F("\r\nOSC did not start"));
    while(1); //halt
  }
  Serial.print(F("\r\nSPP Bluetooth Library Started"));
  lastTime = millis();
}
void loop() {
  Usb.Task();
  if(SerialBT.connected) {
    if ((millis() - lastTime) > 20) {
      lastTime = millis();
      double data = thermocouple.readCelsius();
      SerialBT.printNumberln(data);      
    }
  } 
}