I2C switch and IO Pi Plus stacked up on a single Raspberry Pi

The IO Pi Plus is a 32 channel MCP23017 GPIO expander for the Raspberry Pi

08/12/2020

Posted by:
mhammer3

Dear support team

Is it save to stack up one IO Pi board and one I2C Switch board on a single Raspberry Pi? I am asking because (if not mistaken) the pull-up resistor on the RspberryPi side would be reduced from 10k to 5k.

Thanks

Regards

Marko

report

08/12/2020

Posted by:
andrew

Hello Marko

It is safe to stack the IO Pi and I2C Switch on a single Raspberry Pi.

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C# beginner question

Node-Red

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I2C switch and IO Pi Plus stacked up on a single Raspberry Pi

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