Cannot read sensors

Does it go down at the same time each day? If so then I would look for something causing interference at those times.


No, unfortunately not. I thought so in the beginning, but now I cannot see any such pattern. You can take a look at the attached screenshot.



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I've running the hobby-boards sensors since 3 months. But since 3 days, I cannot read the sensors anymore. I use OWFS and it see all the sensors but for reading the values, it gives me "Invalid Argument".
I disconnected everything en reconnect it but same problems.