MAX6675 Module + K Type Thermocouple

The challenge with using thermocouples is the need for what is known as cold junction compensation and the need to detect a very small voltage change for every degree in change of temperature.

Fortunately there are chips like the MAX6675 that make connecting a thermocouple to your Arduino an affordable breeze.  The device measures the output of a K Thermocouple and provides the result to the Arduino via a SPI interface.

MAX6675 features cold junction compensation, linearity correction, thermocouple break detection etc. Its temperature resolution capability is 0. 25 Degree, cold junction compensation range - 20 ~ + 80 Degree, wide operating voltage range 3. 0 ~ 5. 5V.

To know about how to use this module as well as Arduino code & library, Click here.