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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
So yes, 3 bit = 8 colors
However there's dithering built in, so if you don't require solid color it's actually pretty flexible. try the emulator:
https://www.espruino.com/ide/?emulator&upload&gist=203fe0c3768b5df1b09b0769bf7d2c4c
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