Tonight, my friend Mike Taylor came over with his laptop. He had just upgraded his Dynon D-10a to the latest version 4.0 software and offered to upgrade mine as well. It turned out to be very easy. Plug the serial cable from the Dynon into the serial port on the laptop. On the Dynon support software running on the laptop, you select the Dynon type you want to upgrade and have it autodetect your equipment. With the Dynon turned on, the software program takes control and downloads the necessary software. For the Dynon EFIS, the software program wants the remote compass connected as well because it upgrades the firmware on it. I had run the cable into the back of the fuselage but had not connected the remote compass module yet. The cable comes from Steinair with the connectors already on the wires but not inserted into a DB-6 connector yet. I just plugged the four wires directly into the remote compass connector so I could upgrade it.
The Dynon EMS-D10 took only a few seconds to update to version 4.0. The Dynon EFIS-D10A took a couple of minutes. With the new software and the DSAB wires from each unit tied together, you can swap the screens on each unit to the other unit. Heres a picture of both units showing the primary flight display window.
Or you can put the HSI from the EFIS on the EMS.
Or you can swap both displays if you would rather have the engine stuff on the left side.
Another combination is to show the checklists from the EFIS on the EMS.
Oops, the vertical compass is in upside down! Don Ridder, the president of our EAA 538 chapter, actually spotted it. Don is building a RV-8 and is putting in dual large screen Dynons.
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