SPI question

Oh, I see. I was doing switch/case wrong, and left out the breaks. I always forget the syntax for switch/case.

exports.connect = function(spi,cs) {
  return new MAX31855(spi,cs);
};

function MAX31855(spi,cs) {
  this.spi=spi;
  this.cs=cs;
}

MAX31855.prototype.getTemp = function () {
  var d = SPI1.send("\0\0\0\0",C0); 
  var trtn={};
  trtn.temp=(d.charCodeAt(0)<<6 | d.charCodeAt(1)>>2)*0.25;
  trtn.fault=0;
  if (d.charCodeAt(1) & 1)  {
    var fault = (d.charCodeAt(3) & 7);
    trtn.fault=fault;
    switch (fault) {
      case 1:
        trtn.faultstring="No probe detected";
        break;
      case 3:
        trtn.faultstring="Probe shorted to Ground";
        break;
      case 4:
        trtn.faultstring="Probe shorted to VCC";
        break;
    }
  } 
  return trtn;
};

Should now return an object with properties temp (the temperature), fault (the fault code) and faultstring (with a description of the error condition, if available).

Version on my website updated, so this should work:

SPI1.setup({ miso:B4, sck:B3, baud:1000000 });
var max=require("http://drazzy.com/espruino/MAX31855.js").connect(SPI1,C0);
console.log(max.getTemp());

I'll be submitting this module if it works - want me to credit you as something more, ah, personal than "User7341"? :-P