HR – Plot multiple bluetooth heart rate monitors on a graph
Here it is if you want to try it.
It is just a html page with javascript. No cookies, server side anything, tracking, cost or adverts.
It looks a bit like this with 3 devices all connected at once:
It can handle the ”upload” of multiple gpx track and plot the heart rate from those as well as map them. Again nothing is actually uploaded – it is all browser based javascript. Not very pretty either and a bit buggy..
thedays.se/hr.html