Pocket Beagle breaks python-smbus

I am trying to run some Python control of I2C devices on the Pocket Beagle (PB)
that already run on the BBB (Rev C).

So, I set up the following comparison:

Please disregard…
I had a strange hardware grounding problem that allowed “i2cdetect” to see the part, but could not communicate with the part.
I2C working as expected on the PocketBeagle, now.

— Graham