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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
Thanks! What you're doing sounds perfectly fine. I guess you tried without the magic Apple service?
Only thing I can think is maybe it's complaining about the connection interval? Espruino uses a fast connection interval normally and drops down after 1-2 minutes of inactivity.
You could force it to use a lower connection interval with something like
NRF.setConnectionInterval(100).