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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.
@JumJum
After connecting to a board, WebIDE trys to read process.env.
If you have, like me, problems with serial port in chrome, sometimes you will not get the data.
Usually I disconnect and reconnect until I get the all data for process.env
Board information is available in settings/about tab at the bottom.