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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.
@gmurphy
No IMU - finger tracking is through an Ultraleap. I'm hoping 2-antenna UWB becomes a readily-available thing faster though.
Not sure about battery life yet, because I keep making mistakes faster than my testing intervals, but so far it looks like its 11mAH battery can give about a day of paired usage with moderate amounts of clicking (I also use it as my mute button in all my VC meetings).