HMs DIY #1-6

Here is the result of my tests (I can only speak for Edge devices):

After booting the device the temperature shows 0.0 for a while, which is not the same time for each booting. It can last for a short time but also for up to 5 minutes. And „5 minutes“ is the key-word! Temperature is updated every 5 minutes after showing a value for first time. When refreshed it shows exactly the Garmin‘s original temperature. While Garmin‘s orig. temp. seems to be refreshed every second, HM‘s temperature is refreshed exactly after 5 minutes.

For testing purpose I put my Edge outside (it is winter here) and waited for alignment at 5 °C for both, HM and Garmin temp.

Then I took in the device and noted the temp. every minute. While Garmin‘s temp rose stadely, HM‘s temp. did 5 minute jumps - but always to the exact temp. of Garmin.

Conclusion:

-HM‘s temp shows the right temperature - but it takes a 5 minute refresh.

-After a reboot the device takes some time to show the temperature for the first time (some seconds up to 5 minutes). This delay seems to be tied to an internal absolute clock and it seems the delay depends on when you have booted your device within the 5-minutes-interval. ( I wonder if that is really possible)

It would be nice, if the refresh-interval could be shortened.

And now something completely different: 

Users often complain that the temperature of the Garmin device is displayed incorrectly. Some claim 4 degrees too much, others claim 3 degrees too little. Garmin has so far refused to be able to make an individual correction. But it could be built in into the setup of this data field and make so many users happy. Not me... I'm aware that an Edge is not a weather station.

So far my first test - and thank you HM for all this!