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Neopixel updates are slow #27

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rhooper opened this issue May 29, 2018 · 3 comments
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Neopixel updates are slow #27

rhooper opened this issue May 29, 2018 · 3 comments

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@rhooper
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rhooper commented May 29, 2018

The neopixel library could benefit from a CircuitPython helper to offload computationally expensive setitem work to. The use of brightness<1 is also slow.
See adafruit/circuitpython#884
@rhooper
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rhooper commented May 29, 2018

I have done some experimental work on this, see adafruit/circuitpython#884

@rhooper rhooper mentioned this issue May 29, 2018
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@kattni kattni mentioned this issue Oct 6, 2018
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@gwertzman
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Yeah I noticed the same issue -- multiplying the brightness value through every value in the array on "show" is inefficient; much better to do the brightness calculation once when you set the value I think.

@rhooper
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rhooper commented Jan 14, 2020

This is now resolved with _pixelbuf in 5.0 beta and the latest neopixel.py that supports it.

@rhooper rhooper closed this as completed Jan 14, 2020
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@rhooper @gwertzman