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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
This could well be a Web IDE problem. On non-Espruino boards I have to insert a delay between sending characters (because it doesn't know whether a serial or USB connection is being used) - and I think there may be some kind of regression in that code.
I've put in a bug for it and I'll check it out when I get a second: https://github.com/espruino/EspruinoWebIDE/issues/27