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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.
@DamianMontero
There is nothing you have to do on linux to get it working.
I've have 3 ubuntu boxes and all connect through usb without any changes. some are /dev/ttyUSB0 some are /dev/ttyUSB1 (depending what I connect and when)
What MOST LIKELY is the case is a cable or port or just blind luck.
We use to have a saying in support:
1) Unplug it
2) blow on it
3) plug it back in.
No. dust was never an issue. but it made customers REALLY unplug something and plug it in (sometimes fully, or correctly the second time)
Can you check if your usb port is dusty?