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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
Hi,
What firmware version is on your Bangle.js 1? And have you updated any of the apps since you go it?
If the bootloader app is up to date (or your Bangle firmware is 2v11 or later) then I believe that should provide the
setUIfunction for you.