Some context:
I control my telescope with Stellarmate in a Raspi mounted over the tube.
I VNC to Stellarmate from my PC vía wifi using a router in the base of the telescope connected to the Raspi by ethernet.
I have another Raspi in the telescope base also ethernet-connected to the same router. I use this second Raspi to connect a monitor camera, and a gps. This second Raspi is also running on Stellarmate and the Gps data is indi- served to the main Raspi. The video stream is available through a dedicated web server to which I connect using an old, small laptop.

As this second Raspi has also KStars, I can have two VNC connections on my PC each full screen in a different monitor. The connection to the main Raspi with EKOS, and the connection to the second Raspi with the KStars planetarium.

Now, the question:
How can I make the planetarium in the secondary Raspi to be in synchrony with the KStars instance in the main Raspi?

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yes, the cable goes to the lower connector in the D90. It is an open/close switch. You can see three cables because the nikon cable uses 3, but two of them go to the same pole in the relay. I just checked Amazon and the relay is 35 euros here in Spain. Kmtronics also sells the relay with no cover and this is cheaper.
You only need a remote Nikon cable/plug, nothing more.

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I use a D90 in my telescope. I use a kmtronics usb relay to shot long expositions. You only need a D90 camera conector cable. the relay is connected to the pi via usb and indi controls it perfectly. I let you know in case you did not know about this possibility 


 



 

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Hi, cannot join. I get ‘link has expired’.

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Maybe this is the same problem reported  here  ?

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Joaquin replied to the topic 'How Update Kstars on Astroberry RPi4' in the forum. 1 year ago

It would be great to have something like a Long Term Support distribution,

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Joaquin replied to the topic 'How Update Kstars on Astroberry RPi4' in the forum. 2 years ago

Four blinks of the green led indicates the system can not find (maybe corrupted) some starting files (.elf)
Few days ago, after an upgrade I got seven blinks when rebooting. This indicates the system can not find the kernel.
i had to burn again the stellarmate image. There are methods to recover the system without losing your files but I found them a bit complicated. In my case, I mounted the sd card on another raspberry and copied the important files before burning the image.

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Maybe you should not use BULB mode for those short timings. 
With my D90, below 5s down to 0.001s, I disable BULB mode.

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Joaquin replied to the topic 'I do not understand 3D Cube' in the forum. 2 years ago

Two questions based on Jasem answer, just trying to definitively understand:

- How do I choose between storing color FITS in Bayer or RGB formats ?
In INDI I can select between NATIVE or FITS transfer formats and between NEF(RAW) and JPEG capture formats...

-How can I distinguish between Bayer and RGB FITS files?
I suppose both have the .fits file extension. Is one bigger than the other ?

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I never heard of using the Celestron wifi-module with INDI. I always read about the wifi-module combined with a kind of SkySafari planetarium called StarryNight.
I think you can buy a NexStar+ hand control separately. But in any case I think you can connect the stellarmate through the RS232 connector on the old HC.
You can also have a look at the indi_celestron_aux driver. It is in development. I have no experience with it but seems it can control the Celestron mounts through their AUX port. There is a long thread in this forum about it.

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The AVX connects through the hand controller.
The new ones have a (micro) USB connector on the bottom.

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Joaquin created a new topic ' I do not understand 3D Cube' in the forum. 2 years ago

There is a setting in KStars Configuration for FITS processing called 3D Cube that I don't understand.

What does it do?

With a DSLR I don't see any difference shooting FITS or Native whether it is marked or not
With 3D Cube selected or not, the files have the same size (23.3 FITS, 8.5 NEF) and show in the same way with Image Viewer (natural color image for Native and monochrome image (green) for FITS).

The ToolTip for 3D Cube says: 'Process 3D (RGB) FITS images. If unchecked only first channel if processed'
But I do not understand what that means. Which is the 'process' it refers ? 

More, the tooltip for 'Limited Resources Mode' says: '3D Cube: RGB images will not be processed. Only gray scale images are shown'

Does this suggest that 3D Cube is related to how the images are displayed and not to the file itself?
But I do not see differences between the images...
 

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