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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 - there's not much difference in the board revisions - the 1v4 is made in China and has a fuse on-board, but otherwise they're basically the same.
So you're having trouble with a newer MacOS? The problems people were having previously were with 10.6.8.
This is the first I've heard of that being an issue though - I ran a workshop a week ago where virtually everyone had brand new Macs, and it worked fine on all of them.