What flashing command did you use?
If you used dio try qio or vice-versa..
The baud rate to use is 115200.
Sometimes after flashing you need to disconnect the USB and reconnect.
@Wilberforce 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.
What flashing command did you use?
If you used dio try qio or vice-versa..
The baud rate to use is 115200.
Sometimes after flashing you need to disconnect the USB and reconnect.