As an aside, I found this on another post regarding ADS-B.
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The following assumes you have a Dynon Avionics SV-XPNDR-261 or SV-XPNDR-262:
Check SETUP MENU > TRANSPONDER SETUP > AUTO ALT/GND
For most aircraft, it should be set to AUTOMATIC (AIR DATA)
This allows SkyView to automatically sequence the SV-XPNDR-261 or SV-XPNDR-262 to GND or ALT.
If you have a squat switch, and want to (or are required to) use it, set those options appropriately.
If set to NONE, you must change the mode of the transponder manually during the phases of flight.
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If I read the above correctly, the ability to detect Ground versus In-Flight mode all ready exists at some level.
Don