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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
It could well be your board is missing the
'DEFINES+=-DUSB_CDC',line? It's not inESP32S3_IDF4.pyas far as I can see.It hit me when building for another device as well - after @MaBe's change went in I wasn't expecting it to default to Serial rather than USB