Thermocouple Interface using MAX31855 to Pi

Reading thermocouple data on Raspberry Pi using JAVA and Pi4J with the help of MAX31855 14 bit thermocouple to digital converter.

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Thermocouple Interface using MAX31855 to Pi

Things used in this project

Hardware components

Maxim Integrated MAX31855

Raspberry Pi 2 Model B

Story

The MAX31855

The MAX31855 performs cold-junction compensation and digitizes the signal from a K, J, N, T, S, R, or E-type thermocouple. The data is output in a signed 14-bit, SPI compatible, read-only format. This converter has a range from -270°C to +1800°C with a resolution of 0.25°C. It has an accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples.

MAX31855 Datasheet