Adafruit_MAX31855 Class Reference

Sensor driver for the Adafruit MAX31855 thermocouple breakout. More...

#include <Adafruit_MAX31855.h>

Public Member Functions
	Adafruit_MAX31855 (int8_t _sclk, int8_t _cs, int8_t _miso)
	Instantiates a new Adafruit_MAX31855 class using software SPI. More...
	Adafruit_MAX31855 (int8_t _cs, SPIClass *_spi=&SPI)
	Instantiates a new Adafruit_MAX31855 class using hardware SPI. More...
bool	begin (void)
	Setup the HW. More...
double	readInternal (void)
	Read the internal temperature. More...
double	readCelsius (void)
	Read the thermocouple temperature. More...
double	readFahrenheit (void)
	Read the thermocouple temperature. More...
uint8_t	readError ()
	Read the error state. More...
void	setFaultChecks (uint8_t faults)
	Set the faults to check when reading temperature. If any set faults occur, temperature reading will return NAN. More...

Detailed Description

Sensor driver for the Adafruit MAX31855 thermocouple breakout.

Constructor & Destructor Documentation

Adafruit_MAX31855() [1/2]

Adafruit_MAX31855::Adafruit_MAX31855	(	int8_t	_sclk,
		int8_t	_cs,
		int8_t	_miso
	)

Instantiates a new Adafruit_MAX31855 class using software SPI.

Parameters

_sclk	The pin to use for SPI Serial Clock.
_cs	The pin to use for SPI Chip Select.
_miso	The pin to use for SPI Master In Slave Out.

Adafruit_MAX31855() [2/2]

Adafruit_MAX31855::Adafruit_MAX31855	(	int8_t	_cs,
		SPIClass *	_spi = &SPI
	)

Instantiates a new Adafruit_MAX31855 class using hardware SPI.

Parameters

_cs	The pin to use for SPI Chip Select.
_spi	which spi buss to use.

Member Function Documentation

begin()

bool Adafruit_MAX31855::begin

(

void

)

Setup the HW.

Returns

True if the device was successfully initialized, otherwise false.

readInternal()

double Adafruit_MAX31855::readInternal

(

void

)

Read the internal temperature.

Returns

The internal temperature in degrees Celsius.

readCelsius()

double Adafruit_MAX31855::readCelsius

(

void

)

Read the thermocouple temperature.

Returns

The thermocouple temperature in degrees Celsius.

readFahrenheit()

double Adafruit_MAX31855::readFahrenheit

(

void

)

Read the thermocouple temperature.

Returns

The thermocouple temperature in degrees Fahrenheit.

readError()

uint8_t Adafruit_MAX31855::readError

(

)

Read the error state.

Returns

The error state.

setFaultChecks()

void Adafruit_MAX31855::setFaultChecks

(

uint8_t

faults

)

Set the faults to check when reading temperature. If any set faults occur, temperature reading will return NAN.

Parameters

faults

Faults to check. Use logical OR combinations of preset fault masks: MAX31855_FAULT_OPEN, MAX31855_FAULT_SHORT_GND, MAX31855_FAULT_SHORT_VCC. Can also enable/disable all fault checks using: MAX31855_FAULT_ALL or MAX31855_FAULT_NONE.

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The documentation for this class was generated from the following files:

• Adafruit_MAX31855.h
• Adafruit_MAX31855.cpp