Adafruit i2c install issue

[Chris Bohler]

Just getting started, and I am having an issue with the following configuration:

Beaglebone Black Rev C

Debian 4.14

Python 2.7

When attempt to execute Adafruit_BBIO.I2C as I2C:

   "Adafruit_BBIO.I2C deprecated. Replace with Adafruit_GPIO.I2C"

However, after cloning the Adafruit_Python_GPIO module, and running setup.py install ...

... I receive the following:

Traceback (most recent call last):

  File "/var/lib/cloud9/examples/test_accel.py", line 6, in <module>

    Accel = I2C.Device(0x1c, 2)

  File "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/I2C.py", line 98, in __init__

    import Adafruit_PureIO.smbus

ImportError: No module named Adafruit_PureIO.smbus

This from simple python code:

import Adafruit_GPIO.I2C as I2C

import Adafruit_BBIO.GPIO as GPIO

Accel = I2C.Device(0x1c, 2)

I have not been able to determine how to install PureIO library. Comments on github suggest it may not have been released yet.

So, if Adafruit_BBIO retired, and Adafruit_PureIO not available, what should I be installing for an i2c library that is compatible with debian 4.14?

Thanks for any help anyone can provide.

[Chris Bohler]

Correction: Debian 9.5

[Dennis Lee Bieber]

On Wed, 3 Oct 2018 20:15:04 -0700 (PDT), Chris Bohler
<chris....@sbcglobal.net> declaimed the
following:

>
>When attempt to execute Adafruit_BBIO.I2C as I2C:
> "Adafruit_BBIO.I2C deprecated. Replace with Adafruit_GPIO.I2C"
>

Note the message says "deprecated", not that it is no longer usable.

> File
>"/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/I2C.py",
>line 98, in __init__
> import Adafruit_PureIO.smbus
>ImportError: No module named Adafruit_PureIO.smbus
>

Looking at the source code for I2C

"""
def __init__(self, address, busnum, i2c_interface=None):
"""Create an instance of the I2C device at the specified address on
the
specified I2C bus number."""
self._address = address
if i2c_interface is None:
# Use pure python I2C interface if none is specified.
import Adafruit_PureIO.smbus
self._bus = Adafruit_PureIO.smbus.SMBus(busnum)
else:
# Otherwise use the provided class to create an smbus
interface.
self._bus = i2c_interface(busnum)
"""

you can bypass Adafruit_PureIO by providing your own interface object. I
have not looked deeper into what such an object would be.

>This from simple python code:
>
>import Adafruit_GPIO.I2C as I2C
>import Adafruit_BBIO.GPIO as GPIO

I suspect if you are using Adafruit_GPIO you should also use

import Adafruit_GPIO.GPIO as GPIO

(that, itself, imports Adafruit_BBIO)



--
Wulfraed Dennis Lee Bieber AF6VN
wlf...@ix.netcom.com HTTP://wlfraed.home.netcom.com/

[Graham Haddock]

did you install smbus?

It is a prerequisite.

--- Graham

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