Android Question Heartbeat Detect by LED Flash Light and Back Camera


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Longtime User
Hi All,
I have a project to detect heartbeat by LED Flash Light and back camera. There are many apps already in the google play market. Such as
Those all use camera to calculate heartbeat and it is so accurate.
I know a post is using jar lib to implement it. here is the post:

I have tried it, and it seems a good demonstration. But I also need to collect user's data for analysis. This app only gives you the count on screen. I can't get any data from this library.

So, is there anyone need to do this as me? I think I can pay for that if someone who can help me to wrap java as a b4a library. Such as an event to post data when detecting a heartbeat, and I will count it myself.
Most star GitHub about "android-heart-rate-monitor"