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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.
@werty1st
The dongel has Bluetooth 4.0 and not 4.1.
https://github.com/sandeepmistry/noble#bleno-compatibility
With a Raspi 3.0 its working.