I'd like to get the R-R intervals from the built-in heart rate sensor of Vivoactive 3 using the ConnectIQ SDK. From the SDK I only see that I can get the current heart rate from Toybox::Sensor::Info.heartRate. Converting this to R-R intervals is highly inaccurate for calculating HRV. I can't find the heart rate ANT sensor profile in the Toybox::AntPlus. Any ideas how I can get the lower-level heart rate sensor data that goes to the FirstBeat's stress monitoring widget?
Thanks for the suggestions! I tried the HRV app - I got it running but it cannot work directly with the built in HR sensor of the watch. It looks like it works only with chest straps. Where do you get the specs of these ANT profiles? Regarding enabling recording R-R data in the fit file - I see this is being done for Forerunner 735 I tried the following guide but it doesn't work for my Vivoactive 3: https://support.firstbeat.com/en/support/solutions/articles/9000061051-how-to-upload-measurements-from-selected-garmin-devices-
Thanks for the link, but I don't have access. I tried browsing the https://www.thisisant.com/developer/ website but there is not much information publicly accessibly. Do you access this content with a thisisant account? Also it looks like you need ANT+ Adopter account for that.
