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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.
@Aadrik
@myownself the confidence actually get pretty high values with lower BPMs as well as the correct 70 BPMs. It seems like as long as thr HRM can grab the same value a few times in a row the confidence value increases.
I read through the github for the health app and the heart rate recorder but I don't see exactly how things are working.