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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.
@fanoush
no, not me, but @yngv126399 did something with adding e-ink to Magic3 recently and other people mentioned some stuff on discord over years with some photos. but I guess you already opened it many times so you already know the inside,
here is some recent photo of PCB, at least the TXD and maybe the one next to it (RXD?) and one button pin should be usable?