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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
That's not the case at all - it's very similar to your display in that there's a shift register for rows. In its case there's some kind of counter for columns, but it's the same in that if you stop calling the update function, nothing is displayed.
It's worth trying what I suggest though - it'll probably work quite well.
Just FYI, there's a Charlieplex module for Espruino too: http://www.espruino.com/Charlieplex