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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.
@bigplik
I checked it with both 3.3v and 5.0V - it looks like refresh rate is low or something like that, as I can't see stable prints on the display but they are flashing very fast,
maybe I should connect Vcc by transistor, maybe power source from maple leaflabs isn't powerful enough?