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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
If you're ordering a few you can get them as samples from Raytac - but while they're cheaper you'll get stung for postage.
As far as I know there is no bootloader - so the best way to flash them would be to buy an nRF52DK and wire SWD to the programming headers.
Any thoughts on a way for me to get a bunch of pre-orders together? If I could get 100 or so it could be worth me making a programming jig - obviously if I sell them with Espruino and a bootloader installed it makes life a lot easier!