Helge replied to the topic 'Shoestring USB-serial with StellarMate' in the forum. 4 days ago

Actually I have not tried the cable, but can report that the BT adapter works reasonably well, at least in my case.

If I may ask - what exactly is not working?

Read More...

Helge replied to the topic 'subpixel accuracy - autoguiding' in the forum. 6 days ago

Think, now I got it: if rms = 1” arc sec, it is very roughly a quarter of my arc sec per pix!

B)

Read More...

Helge replied to the topic 'subpixel accuracy - autoguiding' in the forum. 6 days ago

Hi Wim,

Is this correct for ASI120 with 3,75my:

= 206 x 3,75 / 170mm focal lenght
= 4,54”

Means: with an RMS equaling 1, I will have on average a shift of 4,54” ? Somehow sounds a lot, or am I wrong?

So I would be better off with a scope with a longer focal length?

In case you can recommend some sort of literature, would be great if you can share a link.

Thanks once again, Helge

Read More...

Helge replied to the topic 'subpixel accuracy - autoguiding' in the forum. 6 days ago

very clear, many thanks, Wim

...then, would anyone know KStars/Ekos subpixel-accuracy? For phd2 I have read somewhere that the accuracy is somewhere around or even less than 0.3.

Read More...

Helge created a new topic ' subpixel accuracy - autoguiding' in the forum. 6 days ago

Would someone happen to know what "subpixel accuracy" in the context "guiding" means"?

is this a parameter to be set (eg in guide module) or a ratio related to the primary / guding scope or pixel size ccd / guidecam?

I came across the topic as I was wondering about the ideal guide scope (length/aperture) for my 500mm refractor, with ASI120 & ASI071 cams.

many thanks, Helge

Read More...

Helge replied to the topic 'NanoPi M4' in the forum. 1 week ago

Actually I would go for the "pc" version, but I am not sure whether I can address the GPIOs thru the wiringPi lib. for the nanoPi there is an adapted wiringPi lib available - which I hope would also work for the M4.

Once I have the nanoPi will check whether the Stellarmate OS would work, though I am having some doubts.

Read More...

Helge replied to the topic 'NanoPi M4' in the forum. 1 week ago

I was about to order the nanoPi M4 - one can chose between 2 and 4 GB RAM, the latter much more expensive. would 2 GB suffice already? compared to the RPi3, it is twice as much.

best, Helge

Read More...

Helge replied to the topic 'NanoPi M4' in the forum. 2 weeks ago

Quick question on NanoPi - where to buy, directly from friendlyarm? or is there any vendor that is reliably shipping to Europe? How about tax?

Btw: NanoPi looks fairly interesting, considering USB3 and RAM. Even more, it might allow using WiringPi lib - and thus running Astroberry-DIY drivers (there is a branch called tinkerboard, provided by Patrick, that allows usage of the wiringPi lib).

github.com/friendlyarm/WiringNP

Best, Helge

Read More...

Helge replied to the topic 'Taking time off' in the forum. 2 weeks ago

I feel very sorry for you, and thoughts are with you.

Take care,

Helge

Read More...

Helge replied to the topic 'Repetitive Exposure / Looping (with ASI cams)' in the forum. 4 weeks ago

Quick revisiting: Tried again tonight, all fine now. Not sure, what made the issue disappearing, but I am not complaining...

Read More...

Helge created a new topic ' Repetitive Exposure / Looping (with ASI cams)' in the forum. 4 weeks ago

Hi, not sure what has been triggering, except for trying another laptop with a newer EKOS release. Anyway, whenever attempting to capture an image, the exposure countdown is being started in endless cycles.

Log file attached. This seems to be the critical part:

ZWO CCD ASI071MC Pro : "[DEBUG] ASIGetExpStatus failed. Restarting exposure... "

Can anyone help or advise what to do?

Many thanks,

Helge

Read More...

Helge replied to the topic 'Installing INDI/KSTARS-EKOS on a NanoPC-T4' in the forum. 1 month ago

Hi Peter, did you already gather any experience with the GPIOs, is there any library that can be used to address the pins (such as the wiringPi lib)?

Best, Helge

Read More...

Helge replied to the topic 'Can anybody recommend USB GPS dongle for RPi/StellarMate?' in the forum. 2 months ago

Sure, I am also using the Pi I the field, squeezed everything into a small printed box, attached to the scope...

N.B. The shield delivers also the 3.3V for the gps module and connects to the RX / TX pins; it also hosts the driver for the focuser.

Read More...

Helge replied to the topic 'Can anybody recommend USB GPS dongle for RPi/StellarMate?' in the forum. 2 months ago

Hi Greg, obviously you are asking for an USB dongle, and I have no advise - but does it have to be usb ? I have very good experience with gps boards connected to the GPIOs, using the astroberry gps driver.

Read More...

Greg Beaton thanked Helge in topic Can't get GPS dongle to work 3 months ago
Helge replied to the topic 'Cooling down the ccd with delay' in the forum. 3 months ago

Good morning, the background of my post is that I have some problems with condensation (ASI071pro) and people in the ZWO user group suggested to spread the cooling-down over 10-20 minutes, also with references the large chip.

Read More...

Helge replied to the topic 'Can't get GPS dongle to work' in the forum. 3 months ago

Hi Greg,

Some time ago I had difficulties with my gps module, which was not an usb dongle. I received some hints in this forum which also may help you with the debugging, see thread:

indilib.org/forum/general/3068-astroberr...-breakout-board.html

Wish you good luck - weekend coming up, plenty of time for analysis! B)

Helge

Read More...

Helge created a new topic ' Cooling down the ccd with delay' in the forum. 3 months ago

Hi Jasem,

I have learnt during the past couple of days that I should not cool down the ccd cam in one go, instead should allow 10-20 minutes to reach the desired temperature. Could you think about a delay factor, to reach the target temperature over a period in time that can be freely chosen?

Best, Helge

Read More...

Login



3rd Party

Choose from the numerous 3rd party INDI drivers to suit your needs!

Got Problem?

Check out the FAQ, the forum, and the bug tracking system to resolve any issues you might have!
You can also subscribe to INDI newsletter and development mailing lists to get the latest updates on INDI!