mirror of
https://github.com/RobTillaart/Arduino.git
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69 lines
1.3 KiB
Arduino
69 lines
1.3 KiB
Arduino
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//
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// FILE: max31855_hw_SPI.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: thermocouple lib demo application
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// DATE: 2020-08-30
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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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//
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// | HW SPI | UNO | ESP32 |
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// |:---------|:-----:|:-------:|
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// | CLOCKPIN | 13 | 18 |
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// | MISO | 12 | 19 |
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// | MOSI | 11 | 23 |
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// read() timing UNO
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// HWSPI 16000000 ~68 us
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// HWSPI 4000000 ~72 us
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// HWSPI 1000000 ~100 us
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// HWSPI 500000 ~128 us
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// SWSPI bitbang ~500 us
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const int csPin = 6;
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uint32_t start, stop;
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MAX31855 tc(csPin);
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// MAX31855 tc(13, 6, 12); // sw SPI
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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_demo0: ");
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Serial.println(MAX31855_VERSION);
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Serial.println();
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tc.begin();
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}
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void loop()
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{
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start = micros();
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int status = tc.read();
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stop = micros();
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Serial.println();
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Serial.print("time:\t\t");
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Serial.println(stop - start);
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Serial.print("stat:\t\t");
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Serial.println(status);
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uint32_t raw = tc.getRawData();
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Serial.print("raw:\t\t");
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Serial.println(raw, BIN);
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float internal = tc.getInternal();
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Serial.print("internal:\t");
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Serial.println(internal);
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float temp = tc.getTemperature();
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Serial.print("temperature:\t");
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Serial.println(temp);
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delay(1000);
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}
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