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The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in a 12-bit resolution, SPI™-compatible, read-only format.
This post we will demo how to use the  MEGA+MAX6675 to measure water temperature.

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_tour][vc_tab title=”Part list” tab_id=”1399530201-1-73″][vc_column_text]1  x Arduino

1  x  MAX6675 module

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• Max6675 pin SO  – > Arduino pin 8
• Max6675 pin CS  – > Arduino pin 9
• Max6675 pin SCK  – > Arduino pin 10

 [/vc_column_text][/vc_tab][vc_tab title=”Test Code” tab_id=”1399530941051-2-2″][vc_column_text]Library file :Max6675

Test code

#include “Max6675.h”

Max6675 ts(8, 9, 10);
// Max6675 module: SO on pin #8, SS on pin #9, CSK on pin #10 of Arduino UNO
// Other pins are capable to run this library, as long as digitalRead works on SO,
// and digitalWrite works on SS and CSK

void setup()
{
ts.setOffset(0);
// set offset for temperature measurement.
// 1 stannds for 0.25 Celsius

Serial.begin(9600);
}

void loop()
{
Serial.print(ts.getCelsius(), 2);
Serial.print(” C / “);
Serial.print(ts.getFahrenheit(), 2);
Serial.print(” F / “);
Serial.print(ts.getKelvin(), 2);
Serial.print(” Kn”);
delay(2000);
}

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Room temperature and the hot temperature, as the follows:

The

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