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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
@Robin - if you don't have an Android/iOS device that can act as the other end of the Relay (which you said you didn't in other posts?) then I'm afraid the Relay option won't be much use to you.
The Relay Key option should be here https://www.espruino.com/ide/
However, it looks like I'd made a recent IDE change which has disabled it - and the cached version on my PC was still showing it as working. I have since tweaked it so it should be working.
Go to https://www.espruino.com/ide/ and Ctrl-click the reload button - that should force a full reload of the IDE, and after that you should hopefully see the
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