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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.
@EricMeyer
Board came with 1v91 and I would like to upgrade to 1v92. I can't get it into boot loader mode after trying 5 different cables and dozens of attempts. (red and green leds blink once and go out.) Board is working, but I just can't get it into boot loader mode. So now I would like to try advanced flashing I downloaded the windows utility at the link you provided and it installed something called DFuseDemo and when I run it it sees my board (after shorting the pins on the underside with a graphite pencil mark). It will not load a .bin file however, the utility only supports .dfu files. How do I generate or get one of those?