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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.
@rmd6502
Yeah, in this case it was supposed to mean 3.3v - it's an old XBee dongle from Seeed, apparently no longer supported. I'm guessing since the regulator was fried its internal resistance was high so the voltage dropped to something more than 3v and less than 5 - not going to hook it back up to check :-)
Anyway, I'll close this thread since the problem is solved, and move over to Projects where I'll talk about the modified SPI driver I'm working on for Sparkfun's flexible OLED display!