I have this same setup. AVX + SSAG + DSLR + RPI3. I'm using a Nikon D5100 :-/ I have had my share of troubles, but mostly it's working, thought weather is really hampering my efforts. The biggest problem is I fight with my mount alignment, but I think I'm just trying to skip to far ahead versus my skill level. It should all be doable in theory right?

My SSAG also works in PHD2. You can run PHD2 as a server and connect to the PHD2 server via Ekos. That at least gets you AG status in Ekos and it will work as an integrated solution as intended. PHD2 can be run directly on the RPI with a remote window over X11 forwarding.

I haven't been successful with the autoguiding yet in Ekos, but the SSAG does connect and it does take exposures. The first time I tried it could not calibrate, but I think some settings were off, since it was calibrating in PHD2.

For me PHD2 is the gold standard. If it works there it should work everywhere else, but there may be some difference between your model SSAG and mine (I bought mine used). I'll post the stats I have on mine to this thread next time I'm sitting in front of the setup.

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