78 lines
2.1 KiB
Arduino
78 lines
2.1 KiB
Arduino
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/***************************************************
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This is an example for the Adafruit Thermocouple Sensor w/MAX31855K
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Designed specifically to work with the Adafruit Thermocouple Sensor
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----> https://www.adafruit.com/products/269
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These displays use SPI to communicate, 3 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#include <SPI.h>
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#include <Wire.h>
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#include "Adafruit_MAX31855.h"
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#include <LiquidCrystal.h>
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// Example creating a thermocouple instance with software SPI on any three
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// digital IO pins.
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#define MAXDO 3
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#define MAXCS 4
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#define MAXCLK 5
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// Initialize the Thermocouple
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Adafruit_MAX31855 thermocouple(MAXCLK, MAXCS, MAXDO);
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// initialize the library with the numbers of the interface pins
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LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
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#if defined(ARDUINO_ARCH_SAMD)
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// for Zero, output on USB Serial console, remove line below if using programming port to program the Zero!
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#define Serial SerialUSB
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#endif
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void setup() {
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#ifndef ESP8266
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while (!Serial); // will pause Zero, Leonardo, etc until serial console opens
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#endif
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Serial.begin(9600);
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// set up the LCD's number of columns and rows:
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lcd.begin(16, 2);
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lcd.clear();
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lcd.print("MAX31855 test");
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// wait for MAX chip to stabilize
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delay(500);
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}
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void loop() {
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// basic readout test, just print the current temp
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lcd.clear();
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lcd.setCursor(0, 0);
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lcd.print("Int. Temp = ");
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lcd.println(thermocouple.readInternal());
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Serial.print("Int. Temp = ");
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Serial.println(thermocouple.readInternal());
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double c = thermocouple.readCelsius();
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lcd.setCursor(0, 1);
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if (isnan(c))
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{
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lcd.print("T/C Problem");
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}
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else
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{
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lcd.print("C = ");
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lcd.print(c);
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lcd.print(" ");
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Serial.print("Thermocouple Temp = *");
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Serial.println(c);
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}
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delay(1000);
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}
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