Faster CircuitPython LED animation with ulab

dcexpert

Faster CircuitPython LED animation with ulab [Copy link]

 

Create a "working copy" of the LED data in a ulab/numpy array and use the ulab functions wherever possible. Then at the last possible moment, copy the information from the working copy into the real LEDs object. This only adds a few lines of code to the existing solution, and you get to use all those cool ulab array functions (it would be really cool if the NeoPixel object could accept a ulab array to avoid this copying). --

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• fire_no_ulab.py: ~40 milliseconds per frame for 256 LEDs on an RP2040
• fire_with_ulab.py: ~4 milliseconds per frame for 256 LEDs on an RP2040

极限零

I don't see any difference...

dcexpert

Extreme Zero posted on 2022-11-2 10:43 I don’t see any difference. . . .

The following is faster, theoretically 10 times faster

storm-wind

This may be used to speed up the display of ssd1306

lugl4313820

Thanks for sharing, I'll learn from it when I have time.

wangshujun72

The buf defined inside NeoPixel is accessible externally

Directly operate np.buf[]