• Thanks! Yes, it does look nice and small - there's some hope that some of the neopixels ones will get closer soon as there are some tiny chips coming onto the market, but nothing similar I know of for now.

    It'd be worth experimenting, but I've had much better results driving this kind of thing when I create one function that scans out all rows in one go, and then schedule that maybe 100 times a second. It seems to create less obvious glitches if other code takes a while to execute. The JS execution is slow enough that there's no need for delays - just push out all rows in one bit of code.

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