The MAX31855K performs cold-junction compensation and digitizes the signal from a K-type thermocouple. The data is output in a signed 14-bit, SPI-compatible, read-only format. This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C, and exhibits thermocouple accuracy of ±2°C for temperatures rangin…
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MAX31855K Thermocouple Breakout

MAX31855K Thermocouple Breakout


The MAX31855K IC takes a standard k-type thermocouple in one end, digitizes the temperature measured and sends that data out the other end via SPI.

This part was created in Eagle v7.2.0.

Repository Contents

  • /Hardware - All Eagle design files (.brd, .sch)
  • /Libraries - All Arduino libraries and board examples
  • /Production - Test bed files and production panel files
  • - The license this library is distributed under.
  • - This file!


Product Versions

  • SEN-13266 - K-type thermocouple digitizer breakout board

Version History

  • v1.0 MAX31855K Thermocouple Breakout

License Information

This product is open source!

Please review the file for license information.

If you have any questions or concerns on licensing, please contact

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.