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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.
@Gordon
Ahh - you haven't included setRect in that - but it might be in another forum post :)
You should also be able to use a larger 'setRect', and then a bigger array for zzz, and then you can load in a whole load of pixels at once.