Tempe widget graph

I'd love to see a graph with temperature readings from tempe sensor as a widget similarly to that of the internal temperature sensor (Forerunner 935).
  • The only way to do that is to have a app that's always running. In the case of a background process it can run every 5 minutes The problem is that it can take the tempe 1-2 minutes to connect, and the background process can run for at most 30 seconds, so it would rarely connect and provide data.

    I tried this about 2 years back