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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
IIRC the display wanted to be driven with 18 bit parallel data.
You could definitely keep a paletted 'arraybuffer' graphics in memory though, and add your own 'flip' function that bit-banged it out. Should be fast enough (if done in native code), and pretty simple.