As promized, here is the source code for:

• The SolarTracker firmware V3 : SolarTracker on my Github
• The Panel Orientation Android App : PanelOrientation on my Github

Don't forget to donwload the V3 of these files. 

As usual, if you prefer to download the Apk it is here!

They work together and allow to ease the Solar Tracker Initialization. Needed for the new azimut axis mechanics.

Full details into this log

Both the firmware and the App allow this behavior during calibration :

And finally this behavior during a timelapse filmed in september between 14 pm and 18 pm (or 12 UTC to 16 UTC). The panel follows the sun and when elevation reaches 20° (shadows coming close to the panel) it performs the flip maneuver from West to East for the next morning.

This movie has a speed increased by x480 and thus represents 4 hours in real time. It was a moderate windy day, we can see that the new azimut axis is working without problem.