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35 lines
781 B
Plaintext
35 lines
781 B
Plaintext
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Working is as follows:
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first is to instantiate a constructor:
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#include "MAX31855.h"
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const int doPin = 7;
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const int csPin = 6;
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const int clPin = 5;
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MAX31855 tc(clPin, csPin, doPin);
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To get a reading one must call tc.read()
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This is the workhorse, it returns the status of the last read which is 0..7
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0 = OK
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bit 0 set = thermocouple open circuit
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bit 1 set = thermocouple short to GND
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bit 2 set = thermocouple short to VCC
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After a tc.read() you can do tc.getTemperature() and tc.getInternal().
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repeated getTemperature() will give the same value until a new tc.read();
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The reason for this is that it allows the object holds its last known temperature.
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Now one can do:
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float last = tc.getTemperature();
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tc.read();
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float new = tc.getTemperature();
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float delta = new - last;
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