in reply to i2c bus contention

Need to see all of your code. I am extremely familiar with Perl on the Raspberry Pi, so I may be able to help.

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Re^2: i2c bus contention
by stevieb (Canon) on Mar 30, 2020 at 00:08 UTC

    It seems you're suffering from trying to have a multi-master I2C bus with the two scripts running, but I don't know how that distribution handles that situation.

Re^2: i2c bus contention
by anita2R (Scribe) on Mar 30, 2020 at 14:16 UTC

    @stevieb The code for the lcd module runs to 75K, so you probably don't want to see all of it! Most of it is not relevent to i2c bus access