Alex Varakin replied to the topic 'Canon EOS-M cameras support' in the forum. 8 hours 57 minutes ago

Looks like LibRaw devs are promising to add support for CR3 this autumn. Another way of dealing with this issue is to force the camera to save in CR2 format. The camera supports this feature but for some reason, INDI still receives CR3 format.

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. yesterday

I have an 8MP mono CCD camera and 1GB without zram is good enough for Ekos + PHD as long as I don't run Chrome browser. With my PI4 which has 2GB RAM and no zram, I have plenty of memory. Make sure that you enable System monitor on Mate panel which shows both CPU and memory so you can monitor memory closely. Keep in mind that Linux reports memory usage in a very confusing fashion - it considers buffers and caches as non-free memory even though it can be used if the system runs out of memory. In Mate panel buffers and caches are shown as light green.

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Alex Varakin created a new topic ' Canon EOS-M cameras support' in the forum. yesterday

Hi All,

I have M50 and it is a great camera with low noise, but the problem is that for some reason it wants to send CR3 raw images back to PC and CR3 is not supported by Ekos. There is a setting in the camera to fall back to CR2, but for some reason, it is disregarded.
Was anyone able to get Canon EOS-M cameras working with INDI and Ekos?

Alex

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Alex Varakin replied to the topic 'A totally headless, no GUI, INDI server?' in the forum. yesterday

Most of the time I just pull the plug and so far (2+ years) never had a problem.

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Alex Varakin created a new topic ' Raspberry Pi 4 based on Ubuntu 18.04' in the forum. 5 days ago

Finally, I had a chance to test my Raspberry Pi 4 based on Ubuntu 18.04 under the stars.
So far most things seem to be working with my equipment: Losmandy G11 OnStep mount, SBIG CCD, ZWO174 guider, SX Wheel.
I am currently capturing images with latest Kstars and guiding with PHD2. Astromety plate solving works too.
It looks like the things are faster and I even have some spare memory.

I see that some folks managed to build their RPI4 based on Raspbian, but that approach forces to build all astro software from source. My method allows to use pre-built binaries from Jasem's and Patrick's PPAs.
Given that there is no official Ubunty distribution for RPI4 available, I am using an approach where firmware of Ubunty Server 18.04 is replaced by firmware from Raspbian.

I published more informaiton on setup process on Github:
github.com/avarakin/astropi
Even though the Server flavor of Ununtu is used as a base, the script installs Mate desktop and removes some un-necessary software. The only thing which is not working yet is Wifi but it is low priority for me because this RPI is running observatory, which has Ethernet cable.

Feel free to try this method and let me know if you are facing any issues.

Alex

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 3 weeks ago

Do you know what distro it is based on?

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 3 weeks ago

rlancaste wrote: When the official image forUbuntu-mate on Raspberry Pi 4 comes out, I will probably go back to using that, since my original script should work just fine for that and I like ubuntu mate better. But I thought it would be good to take this opportunity to make a new script so that those who wish to use Raspbian can have a script that gets them up and running just as well as somebody using ubuntu mate. Plus this gives me a chance to start using and playing with the pi until that time.

I was also under impression that using Raspbian as a base is the best approach but the problem is that Debian, which it is based on, does not have its own PPA and using Ubunty PPA may work but may also not work. So probably the only reliable way of having latest astro software is to build it from source which in my mind is too much hassle for most people.
@rlancaste How do you install latest astro software in your script - from PPA or build it from source?

Alex

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 3 weeks ago

The original Ubuntu server does not have Mate desktop but my script installs it, as well as X Windows and LightDM desktop manager.
It also uninstalls some server software which is not needed.
I intentionally did not install office stuff as it is very heavy and not needed for imaging.

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 3 weeks ago

I never tried running it with real equipment but Ekos with simulator works.
Internal Wifi adapter, wireless mouse and keyboard do not work but I read that it can be fixed by installing modules from Raspbian.
The setup was done half headless: with ssh over Ethernet + display over HDMI.
I think that this method is the best available right now - it removes the dependency on Ubuntu Mate which was very slow to adopt 18.04.
Also hopefully Ubuntu guys will build a proper image for Pi 4 soon so no hacking with firmware would be required.

Alex

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 3 weeks ago

If it helps anyone, I built a Mate based system based on Ubuntu 18.04 server. To make it bootable, the firmware is replaced from raspbian.
Here is a script (actually it is makefile) , which builds the system:
github.com/avarakin/astropi
Nice thing about it is that it is using official Kstars and other repositories so there is no need to build anything from source.

Alex

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Alex Varakin replied to the topic 'New Raspberry pi 4 anounced' in the forum. 2 months ago

RPI3 runs Ekos+PHD2 just fine. Only platesolving takes some time, especially with long focal length telescopes.

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Is anyone able to run Ekos on RPI under Ubuntu 18.04 without crashes?
I see that other forum members have the issue with crashes.

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