I would like to send short text messages to X-Plane and display them on the X-pane screen.
Is there a command available ?

Yes. This is my current approach.

Is there a method to unsubscribe/release or modify a dataref subscription?

I try to modify the GI-106 instrument to work better with my RXP GNS430W.

I think it is more efficient to sibscribe only to the datarefs which are momentarilly needed rather than subscribing all of the datarefs

Thank you

CAN-Bus is a good option in real world. Priority, error handling - anything is done by CAN itself. And all nodes (or instruments) can get the necessray information. I am using 250Kb/s and it seems defintiely enough. AFAIK ARINC429 already has a kind of identifiers which tell you what kond of informa...

My Project(s) started many years ago with FSX and FSUPIC. The Hardware I made is mostly based on ATMega32 + MCP2515 or AT90CAN128 Controllers, communicating via CAN with each other and via a CAN<->USB with the FSX. I came to the CAN-Bus from an even older Project communcating with components for a d...

That sounds great!

As I have already created some Hardware instruments which use the CAN-Bus, I am, really interested in using this bus/connector.

Are there more Details available, including Details on CAN-bus Speed and how the Messaging works?

I am also interested in a beta-test

I am using the GI106 CDI Instrument in my Panel as CDI1. I also have the RealityXP GNS430W which seems not to be working perfectly right together with the CDI 1. The bare metal GNS430 tests the CDI on Startup by showing both needles half deflected. 2. The GI106 I have on my (sim Panel) Shows only th...

I have the Aspen Panel and AFAIK it is NOT showing a waypoint by Name.
AFAIK the bare metal one does Show the active waypoint as a Name.
Is that true? Can thsi be added?

It may be far too early to ask and even the wrong place: Will FS2020 Support external Software such like AirManager?

All the previews are only showing perfect looking cloaud formations, nice landscape in sunset and so on. But no Information about how external Hardware can be coupled

Is there a pre-made- Instrument available acting as an Annunciator for a GNS430 like the mid continent MD41-14444 https://www.mcico.com/annunciation-control-units-1 or similar?
I did not find such