I'm trying to multiplex some thermocouples into a MAX6675. So far I have one channel connected for testing but I get a -1 reply from the MAX6675. This is how I have things connected up... [image] This is my code... /* Testing the Max6675 03/03/2011 */ #include <SPI.h> #define CS_MAX 10 // …

Thermocouple

graynomad March 24, 2011, 1:51pm 3

Thermocouples don't like anything between them and the amplifier. I think running them through a MUX is asking for trouble.

Rob

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