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Two device with SPI
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Two device with SPI

by juliusau93 on Fri Apr 17, 2020 3:12 pm

I have a MAX31865 using the SPI pins. I want to log data and I know I'll have to use the SPI pins also using a data logging shield. Can I connect both devices SPI wires into pin 10,11,12,13 simultaneously?

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Re: Two device with SPI

by dastels on Fri Apr 17, 2020 3:42 pm

A number of device can be connected to the SCK, MOSI, and MISO pins; each must have a dedicated/unique chip select (CS) pin/signal. This is unlike I2C where addressing/selection is part of the data rather than a physical select signal.

Dave

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Please be positive and constructive with your questions and comments.