Library Reference
You can start out by creating a MAX31856 object with either software SPI (where all four pins can be any I/O) using
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// Use software SPI: CS, DI, DO, CLK
Adafruit_MAX31856 max = Adafruit_MAX31856(10, 11, 12, 13);
In this case, you can use any CS pin, but the other three pins are fixed
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// use hardware SPI, just pass in the CS pin
Adafruit_MAX31856 max = Adafruit_MAX31856(10);
I cannot get any information from MAX31856 module.