If you open the Espruino IDE and hit the Connect button, do you see your device in the list?
@dave_irvine started
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.
If you open the Espruino IDE and hit the Connect button, do you see your device in the list?