Jumping LDR readings about pixelit HOT 6 CLOSED

(Of course I will contribute and implement the smoothing, if accepted)

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I created a PR for the LDR library. After the owner of the library accepts the PR, @o0shojo0o would need to

• add a parameter in the photocell constructor specifying the number of readings to be used for smoothing (I'd recommend at least 10, which would smooth along 10 readings, taking 10 seconds to fully adapt for permanent changes, but maybe even 20 or 30).
• replace calls to getCurrentLux() by getSmoothedLux()

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I still have trouble with my LDR, but will continue this in a discussion.

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Fluctuations could be because of unstable supply / voltage drop or unstable voltage reference of the ESP.

Mine is mostly stable, but sometimes PixelIt changes back and forth between two brighness levels. I did some smoothing in node-red before the brighness regulation feature got built in.

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Added BH1750 support, which partly mitigates this issue.

I'll keep this issue open, as smoothing still might be helpful (only available with LDR, not with BH1750).

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Solved by 0.3.16

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