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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
Just had a quick look at this, and the code I suggested runs out of memory.
I made a few quick changes to reduce RAM usage when saved to flash (eg
getPatternPositionand similar can define the array inside the function) and minified, but while it's enough to load the functions it's not enough to run.The code itself uses normal (sparse) arrays heavily, so realistically it'd need changing to use Uint8Array to store the QR Code itself while it's being created. When that's done it might work, but that's a reasonable undertaking!