Frank Muenzner / MAX31855

Library to interface with the MAX31855 Cold Junction Compensated Thermocouple-to-Digital Converter

Fork of MAX31855 by Joe Staton

The libary is from Joe Station. The conversion factor for the internal chip temperature is changed from 0.25 to 0.0625 to read out the correct chip temperature.

max31855.h

Committer:
Stavlin
Date:
2012-08-16
Revision:
0:656c522152d4
Child:
1:5eeee89cb281

File content as of revision 0:656c522152d4:

#ifndef MAX31855_h
#define MAX31855_h

#include "mbed.h"

class max31855
{
    SPI& spi;
    DigitalOut ncs;
    Timer pollTimer;
  public:
  
    max31855(SPI& _spi, PinName _ncs);
    void select();
    void deselect();
    void initialise();
    
    int ready();
    
    float chipTemp;
    float read_temp();
  private:
    PinName _CS_pin;
    PinName _SO_pin;
    PinName _SCK_pin;
    int _units;
    float _error;
};

#endif