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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.
@Ollie
That looks a lot like a robodyn board (based on embedded circuitry vs mounted ESP8226 12 as seen on node MCU). Myself and a couple of others had no success with WiFi and Espruino. Others have been able to use WiFi with Arduino.