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84 lines
1.5 KiB
C++
84 lines
1.5 KiB
C++
//
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// FILE: max31855_demo3.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.4
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// PURPOSE: thermocouple lib demo application
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// DATE: 2014-01-02
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// URL: https://github.com/RobTillaart/MAX31855_RT
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//
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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;
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void setup()
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{
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Serial.begin(115200);
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Serial.print("Start max31855_demo3: ");
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Serial.println(MAX31855_VERSION);
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Serial.println();
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tc.begin(clPin, csPin, doPin);
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uint32_t start = micros();
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tc.read();
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uint32_t stop = micros();
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Serial.print("read:\t");
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Serial.println(stop - start);
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start = micros();
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float t1 = tc.getTemperature();
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stop = micros();
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Serial.print("getTemperature:\t");
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Serial.println(stop - start);
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start = micros();
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float t2 = tc.getInternal();
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stop = micros();
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Serial.print("getInternal:\t");
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Serial.println(stop - start);
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Serial.println();
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Serial.println(t1, 2);
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Serial.println(t2, 2);
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Serial.println();
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}
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void loop()
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{
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// this loop returns multiples of about 73mSec (counter multiples of ~143)
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// so the # measurements per second is about 14?
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uint32_t counter = 0;
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float t1 = tc.getTemperature();
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float t2 = t1;
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uint32_t start = micros();
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while (t2 == t1)
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{
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tc.read();
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t1 = tc.getTemperature();
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counter++;
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}
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uint32_t stop = micros();
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Serial.print("change:\t");
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Serial.println(stop - start);
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Serial.print("counter:\t");
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Serial.println(counter);
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Serial.println(t2, 2);
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Serial.println(t1, 2);
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Serial.println();
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}
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// -- END OF FILE --
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