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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.
@Gordon
Do you get a usable command prompt on the left, or nothing? If nothing, you may have forgotten to set the baud rate to 115200.
If you disconnect and reconnect then it may work - problem is Espruino wasn't able to communicate with the board properly when you connected so it wasn't aware that it was an ESP8266 which has a Wifi module.