uConsole i2c & SPI interface locations

Good Morning.

I’ve finally found some time to start hacking on my uConsole, and 1 of the peripherals I’m adding is i2c. (Another is SPI, but I haven’t gotten that far yet).

I’ve used a 40pin flex cable to a breakout board, and according to the Mainboard 3.14 schematic I should find I2C on pins 3, 5. I’ve enabled i2c with Raspi-Config, and when I run i2cdetect all I get is 1 reserved address, not my device.

Is there a different location I should be getting i2c from? How about SPI?

Thanks in advance!

-Mike

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