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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
Hi Neil, can you confirm that this doesn't happen when pasting code in via putty? (Eg, that it is only a web app problem).
I think there are two problems here - web terminal losing characters (on some platforms) and then Espruino USB losing chars on Mac OS.
It's a strange one because the USB code has been in use for over a year and I haven't had any reports of lost characters (it only seemed to happen on boards that used serial, or non-f103 chips)