Interfacing (DSI, CSI, I2C, etc.) • Re: how to enable i2c for CM5 in config.txt file

i use raspberry pi CM5 IO board: https://www.raspberrypi.com/products/co ... -io-board/
i will connect with any two pins for i2c, use for MCP23017 to extend digital output and digital input ports.
i have downloaded HAOS image by pi imager. here are some photos.



here is my config.txt file have added code.
dtparam=i2c=on
dtoverlay=i2c3-pi5, pins_14_15 just for example, use i2c with pin 14 and pin 15.

Statistics: Posted by hificat — Mon May 26, 2025 12:35 am

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