Andrew replied to the topic 'Still stuck with my ZWO 120MM' in the forum. 2 days ago

I am successfully guiding with ZWO ASI 120MM with a Raspberry Pi3, but it wasn't a smooth process at first. Updating the SDK at some point to 6.0110 helped ZWO SDK found here . But I believe Knro updated it for in the main build already.
Looking at your logs I see unsupported 16bit raw errors, try verifying it is set to 8 bit. Might help. USB compatibility with this cam is not great on Linux, so the extra bandwidth required there could be an issue.

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Andrew replied to the topic 'dslr - image info' in the forum. 3 days ago

Does this mean we should manually set it to 5184x3456 and throw away the first image?

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Andrew replied to the topic 'Astroberry Focuser with Adafruit Motor HAT' in the forum. 6 days ago

That's understandable. Indeed the website doesn't explicitly state the Raspberry Pi 3. But I suspect that is probably out of date information. I had to do a little searching to find information that suggests it is indeed compatible. As seen here. I am currently 3D printing parts as I am writing this. So I should be ready to go soon. Thanks again for time.

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Andrew replied to the topic 'Astroberry Focuser with Adafruit Motor HAT' in the forum. 1 week ago

I am currently getting parts together in advance. I have the motor, and the Adafruit board. Plus I modeled everything and am ready to 3D print the rest. Once I get those all done I can theoretically begin to test anything you have written.

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Andrew replied to the topic 'dslr - image info' in the forum. 2 weeks ago

I also went back to strictly taking cr2. Which is a bit of a hassle right now as sequence maker defaults to FITS. As for Canon 600d, the sensor specs are 5184x3456, as are the raw files it saves. But the FITS files come out 5202x3465, otherwise they are clear images.

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Andrew replied to the topic 'EQMod tty read and write error' in the forum. 2 weeks ago

Hmm perhaps I misunderstood what you meant by

"using a pluszmis BT adapter on RPI3"

If that means as a secondary adapter to the one built into the Pi3, it's a completely different issue. My earlier comment was for connecting to an adapter from the Pi, where the adapter is connected to the mount as an EQMOD direct bluetooth interface.

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nMAC thanked Andrew in topic EQMod tty read and write error 3 weeks ago
Andrew replied to the topic 'EQMod tty read and write error' in the forum. 3 weeks ago

The trailing '&' is key

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Andrew replied to the topic 'EQMod tty read and write error' in the forum. 3 weeks ago

nmac:
To the file /etc/rc.local add the line:

rfcomm bind hci0 XX:XX:XX:XX:XX:XX 1 &
With Bluetooth adapter's MAC address in place of the X's
This will automatically reserve rfcomm0 for that device at startup.

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Andrew created a new topic ' Inverted Image Effect in Guide Module' in the forum. 4 weeks ago

I occasionally do solar imaging and the 2017 eclipse is approaching. One of the challenges with tracking the sun during the day is that achieving good polar alignment is not possible unless set up the night before and not moved. A way around that is to use autoguiding to compensate for moderate polar alignment error. With an inverted image effect it is possible to guide on sunspots. Obvious disclaimer is appropriate filters must be used for this aswell.

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Andrew replied to the topic 'Issues I had last night after v4.5.6, probable cause?' in the forum. 1 month ago

Ok, part 1 logs with Canon drivers. Mirror lockup is enabled.
Key Events:
~T00:47:57 Capture preview image - success
Enable Live View onboard camera
~T00:48:56 Capture new preview image - Camera shutter actions twice, single frame downloads
Disable Live View, Note blinking available image count, indicating attempt to write image to file.
~T00:51:29 Capture another preview. w/o live view. Image downloads. Counter still blinks.
Re Enable Live View
~T00:54:09 Capture image, shutter actions twice, no image downloads, camera gets stuck on BUSY. After some time INDI driver enters a cycle of failures until Stop Sequence is pressed.

Next: power off Camera; camera attempts to record images from memory to file.
Pull USB allows camera to turn off and back on again.
~T01:00:32 Camera will not reconnect.
Hard power cycle of camera, and reconnecting USB in various fashions does not resolve this state.
I have only managed to clear it up by rebooting.
Also pulling power to the camera resets the RPi3 USB controller, all connected devices are dropped. EQMod Mount disconnects and it's comm port has to be changed tom ttyUSB0 to ttyUSB1)

Deduction on camera Live View interferes with Mirror Lockup. Incidentally other problems arise if the Live Video stream is enabled while an image is taken. The image coming in blank is not totally accurate, I think it was just a much shorter exposure taken with the mirror lockup trigger.

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Andrew replied to the topic 'KStars 2.7.6 is release' in the forum. 1 month ago

So I noticed something I missed while making this with the CCD simulator, and is the source of my confusion. I just realized that the solved frame is relative to the Equatorial coordinate grid while the FOV Symbol is relative to the Horizontal Grid system, obvious to me now why they won't match. Last night I was trying to use the FOV symbol as a reference to frame the Markarian chain and was not getting the framing I was expecting based on the value of the angles.
Terribly sorry this doesn't belong here after all.

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Andrew replied to the topic 'Issues I had last night after v4.5.6, probable cause?' in the forum. 1 month ago

I have to work out how to make the more in depth logs and attempt to reproduce the problem.

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Andrew created a new topic ' Issues I had last night after v4.5.6, probable cause?' in the forum. 1 month ago

  1. Solved rotation is 40° behind actual frame rotation. Already reported here
  2. Canon live view stream used to work with 5x zoom enabled
  3. Odd guiding behavior: made large corrections in a sinusoidal pattern with a period of only a couple minutes. (disabled backlash corrections just in case, didn't help. It stabilized itself once on it's own. I had frames come in with stars tracing ovals.
  4. If image are taken while LiveView is enabled, things go horribly awry.
  • Shutter action is delayed until after I hit live view button
  • Captured image comes in blank
  • Camera is stuck trying to write file somewhere, (also an issue with aborted actions)
  • Power cycling camera to clear write buffer causes havoc. Must reboot to reconnect, and other USB device connections interrupted (RPi3)


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Andrew replied to the topic 'KStars 2.7.6 is release' in the forum. 1 month ago

I noticed now that solved rotation figure does not match the solved frame displayed on the sky. The solved coordinate Rot is 40° smaller than the white frame displayed. For example, the Rot in Solution coordinates says 89.9° (With a simulated CCD beginning with Rot of 0°, that's already odd). And the white solved frame displayed does match the the image capture. I determined this by rotating an FOV symbol to match that.
This made it very difficult for me to determine my proper orientation last night.

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Andrew replied to the topic 'Meridian flip still working for people?' in the forum. 1 month ago

I had a failed meridian flip. It may have been set to >0 though.

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Andrew replied to the topic 'Image Autoguiding' in the forum. 1 month ago

Is there some kind of statistical analysis in place to prevent outliers from triggering excessive corrections? For example If a corrupted image frame were to come in, as can occur in my experience with ASI120. How would the algorithm respond to that?

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Andrew thanked Jasem Mutlaq in topic ZWO CCD Config not saving 1 month ago
Andrew replied to the topic 'ZWO CCD Config not saving' in the forum. 1 month ago

It's been a few days so that should be the case.

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Andrew created a new topic ' Astroberry Focuser with Adafruit Motor HAT' in the forum. 1 month ago

I'm starting this topic up as Kaczorek mentioned it would be prudent to start a seperate thread on this topic, with a shout-out to Christian for his modifications.
Regarding the development of an Adafruit version of the Astroberry autofocus driver. The Adafruit motor controller HAT appears to be an excellent alternative to the PiFace. Whereas the PiFace required 2 integrated boards to control stepper motors and is no longer produced. The Adafruit is an all in one solution at a quarter of the price and is still being manufactured. It also just came back in stock. IMHO an ideal DIY autofocus platform.

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