Jarno Paananen replied to the topic 'USB-Focus-V3 connexion problem' in the forum. 2 weeks ago

One useful addition to the udev-rule is also create a symlink in case there are also other devices using ttyACM*, mine is:

SUBSYSTEM=="tty", ATTRS{product}=="USB_Focus", SYMLINK+="focuser", ENV{ID_MM_DEVICE_IGNORE}="1"

so it's always /dev/focuser

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Jarno Paananen replied to the topic 'Partitioning the Scheduler code' in the forum. 2 months ago

For ScopeDome I originally added the option for park to control shutter as Ekos only (un)parks the dome and doesn't close the shutter so it can work both ways. The same functionality could be in the Dome base class, which might unify different drivers, or then it could be defined to work one way or another and clients accommodated accordingly (having the startup and shutdown procedures more flexible in Ekos would help here so parking and closing shutter could be two different operations is needed). For the most part I let parking control the shutter too but occasionally it's useful to be able to unpark the dome without opening the shutter. Rotating to let snow melt from other side of the dome in the sun comes to mind :)

As for the scheduler partitioning, untangling observatory startup and shutdown from the scheduler is very welcome as currently I have to run a slightly modified Ekos version that performs the startup and shutdown operations in a different order than default. Currently the structure is very rigid state machine even though it could in essence be just a list of operations that need to complete for the scheduler to proceed, be it running scripts or (un)parking equipment. Optionally the list items could have dependencies to other items that need to complete successfully so that for example roll off roof doesn't close if mount fails to park but for example parking cap could still be completed even if some of the preceding items fail. I suck at designing user interfaces though :)

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Jarno Paananen replied to the topic 'on ZWO ASI cameras offset - is it fixed or not? not' in the forum. 2 months ago

INDI driver also has control for it, HighSpeedMode on Controls page. Unfortunately the control names are not always the most descriptive, they are enumerated from the ASI SDK as they also slightly vary between cameras.

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Jarno Paananen replied to the topic 'ScopeDome dome controller driver' in the forum. 2 months ago

Thanks for the update, a mechanical fix usually is superior, there's only that much software can do :)

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Jarno Paananen replied to the topic 'on ZWO ASI cameras offset - is it fixed or not? not' in the forum. 2 months ago

Offset is not fixed in the INDI driver and can be raised, which is useful to avoid clipping to black with many of the cameras with Sony sensors which have over-correcting dark current "reduction". ADC depth is purely informational, the data is always scaled to 16 bits by the ZWO library.

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Jarno Paananen replied to the topic 'Post your INDI Setup!' in the forum. 2 months ago

My remote observatory usually looks like this during the season :)



After two seasons with HEQ5 I recently upgraded the mount to EQ8.


All equiment on the scope is connected to the Rigrunner and Startech 7-port USB3 hub, so there are only two cables coming off. Too bad EQ8 doesn't have internal cable routing, but this hasn't been an issue. Normally there would be Atik 383L+ hanging there, but I changed it to ASI178MC for planetary/lunar imaging for the summer.


Running the show is an UDOO X86 Ultra SBC with Ubuntu 19.04 in the grey box. Recently I also bought the Aviosys IP-Power switch, used relay on the ScopeDome controller before, but it had some issues with very cold weather.


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Jarno Paananen replied to the topic 'Zwo uncooled VS cooled' in the forum. 2 months ago

For planetary/lunar/solar imaging cooling doesn't really do anything as frames are so short anyway. Longer the exposures, more dark current accumulates. I have uncooled ASI178MC and cooled Atik 383L+ and although they aren't really apples to apples in any way, the difference in dark noise is day and night for long exposures and even 30-60s already shows quite big difference.

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Jarno Paananen replied to the topic 'ScopeDome dome controller driver' in the forum. 2 months ago

I just added simple calibration (or just command to start it, the controller itself does it) for steps per revolution to the driver on the site management page (it also shows the current steps so you can see how it changes, though I couldn't get it to change as my dome doesn't slip :) ) and made a pull request for version 1.2. Hopefully this helps at least a bit. Inertia table generation is more work and in theory just an optimization so maybe this is already enough for your case.

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Jarno Paananen replied to the topic 'ScopeDome dome controller driver' in the forum. 2 months ago

Thanks, yes please, interesting to know where my code is being used. I'll see if I can get the calibration and inertia table generation done during the summer, we don't have astronomical dark at all and almost no nautical dark either at the moment so not much to do except code :)

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