We have upgraded the community system as part of the upgrade a password reset is required for all users before login in.

onionI2C Import Error



  • Hello,
    i want to control the relay expansion board with a self written python script. Therefore i followed this instructions:
    https://wiki.onion.io/Documentation/Libraries/I2C-Python-Module
    Consequently i installed the pyOnionI2C module and the "Omega Expansion" folder including the OnionI2C.so file are placed in the package path.
    But when i try to run a python script including this line:
    from OmegaExpansion import onionI2C
    I get the following error message:

    Traceback (most recent call last):
    File "testi2c.py", line 1 in <module>
    from OmegaExpansion import onionI2C
    ImportError: Error relocating /usr/lib/python2.7/OmegaExpansion/onionI2C.so: i2c_writeBufferRaw: symbol not found

    The firmware is up to date and I am using the omega 2.
    Can anybody help me to handle this error or what modules do you use to communicate with I2C devicese?

    Thank you,
    Max



  • Check if you have both libonioni2c and pyOnionI2C installed in same version:

    $ opkg list-installed| grep -i onioni2c
    libonioni2c - 0.5-1
    pyOnionI2C - 0.5-1
    

    Probably you have incompatible version of libonioni2c. Upgrade it.



  • Genius!
    Thats it. Now it works.
    Great, thank you very much.
    I can´t imagine how I should find this little but important difference.
    Hope it will help other people with the same problem.


Log in to reply
 

Looks like your connection to Community was lost, please wait while we try to reconnect.