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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Sir_Indy
Thanks for your help @halemmerich, that does work, but I agree it feels like there could be a simpler solution.
Searching for 'BPP' in the forum (should have done that before I posted, sorry), shows quite a few people have had a similar problem.
It all seems to stem from
g.asImage()giving a 3 bpp buffer, but if I try tocreateArrayBufferwith 3 bpp it says:Uncaught Error: Invalid BPP.