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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.
@Jorgen
Yes, if I connected to USB Powerbank it lights up, there are still some strange issues - could be something with my code - I have to check again.
But if I connect it to USB port of my Mac, nothing happens...
Only after connect USB device by WebIDE.