Convert from Adafruit_GPIO library (which is archived) to smbus2 library

[chrisb2]

The Adafruit_GPIO library is now archived and so does not correctly support later versions of Raspberry Pi and OS. The plan is to replace this with smbus2.

This stacktrace occurred on a Raspberry Pi 4 with 'Bullseye' Raspberry Pi OS:

File "/usr/local/lib/python3.9/dist-packages/ina219.py", line 116, in __init__
    self._i2c = I2C.get_i2c_device(address=address, busnum=busnum)
  File "/usr/local/lib/python3.9/dist-packages/Adafruit_GPIO/I2C.py", line 63, in get_i2c_device
    busnum = get_default_bus()
  File "/usr/local/lib/python3.9/dist-packages/Adafruit_GPIO/I2C.py", line 55, in get_default_bus
    raise RuntimeError('Could not determine default I2C bus for platform.')
RuntimeError: Could not determine default I2C bus for platform.

A work-around for this is described in the readme.

[chrisb2]

@eliran-n - please raise this as a new issue, a PR is not a suitable place to ask unrelated questions. Thx

[eliran-n]

@eliran-n - please raise this as a new issue, a PR is not a suitable place to ask unrelated questions. Thx

Sorry, I was connected from a mobile device and I didn't find a way to contact you.
I post my question as a new issue. Thank you