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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
Not as usb drive but otherwise it is very similar, you can upload download and view files in internal storage via WebIDE or espruino command. advantage is that it works also over serial or bluetooth not only via USB. Also internal storage can then use internal flash friendly efficient format of storing data instead of using generic filesystem like FAT that would be also readable from PC over USB.
In theory it could work like that at least with sd cards so then Espruino device with card would work like card reader but I think this is not implemented either, however maybe that would make sense.