LED Panel (WS2812b) + Pico == bad speed

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Gordon
setting each pixel value takes too much time for the interpreter

Almost certainly - you could time it with:
```
var t=getTime();
// stuff
console.log(getTime()-t);
// SPI send
```
It's also worth making sure you're writing code that executes quickly on Espruino, see this page for some pointers. You can usually get some quite good speedups by following what's there - but post up if you need some pointers about how to get a bit more speed.

Can you help me to figure out how to get the fastest baud of SPI port?

On the APA102, just set the SPI baud rate to something like 16000000 - Espruino won't be able to drive it much faster than that. Also try using the build from http://www.espruino.com/binaries/git/commits/d1139b57f9957ea844e0beef1907ffd7e6a923b5

It's not released yet but there are some speed improvements for SPI in recent builds.

STM32F427

Yes, it would help I'm sure. However the experience with the other boards doesn't tend to be quite as polished as it is with the Espruino ones :)

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