Gina
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Everything posted by Gina
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The astroberry - svn directory contains the source files for Astroberry. There would appear to be the .cpp & .h files for the four drivers viz. altimu, brd, focus and gps (in alphabetical order) plus associated .xml files which control the appearance of controls in Ekos. Files CMakeLists.txt, README, INSTALL, COPYING.LIB and directory cmake_modules.
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OK -here we go again Nice bright new session with Putty - been having a look round the file system. My brain is not entirely error free this morning but working reasonably well Here we see the content of the libindi_1.2.0_rpi directory with the .deb files for the INDI drivers plus directories for astroberry - svn and indi - astroberry.
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Thanks for that I may try the different library but OTOH I can't see that I shall ever want the function provided by that driver and probably prefer not to include it. But how far it's worth going to reduce the size of the overall package is debatable. However, I would like to understand how things work and maybe write my own drivers - this system is so powerful it seems a waste not to make good use of it Yes, CMakeLists.txt is one of the files I looked at - I plan to work out exactly how the compiler works
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Ah yes - you're still using the full Raspbian. That could well be the difference.
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I agree with that Dave I too don't understand why it worked for you and not me. I think I was well on the way to puzzling it out last night when I ran out of steam. I'm looking at the cmake system for compiling C++. I already understand how .cpp & .h files work. I'm beginning to understand the .xml files for interfacing with INDI and Ekos - these determine the controls that appear in Ekos. Seems a very flexible system and much better than the VB app I wrote to control my Arduino focuser. For my all sky cam, I only need a simple focus control as once set it shouldn't need touching. It's only needed in the first place because the dome shifts the focus a bit. OTOH I would like to switch a dew heater on/off. For DSO imaging I want preset differences for different filters and an auto-focus facility would be nice.
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There is no reason why the accuracy should not be superb - you can use micro-stepping for greater accuracy. I currently use a 28BYJ-48 tiny stepper motor only half stepped and easily get focus well within a pixel on my ASI1600MM-C camera with 3.8micron pixels in a four-thirds sensor chip. These stepper motors can be modified for bipolar drive and can then use the A4988 micro-stepping controller with 16x micro-stepping giving 8x the resolution/accuracy I currently use. That's using an Arduino Nano but you can do just the same with an RPi. No, I don't think it is. The time scale involved in focussing is much slower than the microprocessor speed. The A4988 for example has direction bit (on/off) and micro-stepping (1x, 2x, 4x, 8x,16x) then a pulse sent to the STEP input moves the stepper motor by one step with that step size depending on the micro-stepping setting. Hope that makes sense
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I've been looking for the source files in Astroberry but they seem well hidden. I think there are other drivers that control the GPIO interface. Could probably modify one of those.
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I think I'm going to look into INDI driver writing because there are other things I want to do with the GPIO pins on the RPi and I want to control them from Ekos remotely. I know it's possible to write drivers including all the info for producing the controls in Ekos by specifying parameters in the driver. I just need to take it all in I'm learning all the time
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Here's the SVN content.
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Working...
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Now if I can find out how to edit things to just produce rptfocus...
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It puts the four individual drivers into separate directories as per this list :- The only one of interest currently is the rpifocus so why make the others???
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I'm sure the must be a way of compiling only those Astroberry drivers we want. How about deleting files for unwanted ones? - maybe a file containing a list as well.?
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Thoughts on which imaging rigs to concentrate on
Gina replied to Gina's topic in Imaging - Discussion
Har har... -
After some fiddling I now get Files in the working directory. Including RTIMULib on it's own but it still won't "make".
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Pity we have to have ALL the Astroberry libraries when we want only one!
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https://github.com/RPi-Distro/RTIMULib.git OK now what do I do with it?
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Astroberry page says Highlighted in yellow. The missing library - but needed for Astroberry AltIMU only! And the link doesn't work - 404 error.
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I suspected as such - I'll see what I can find
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Thoughts on which imaging rigs to concentrate on
Gina replied to Gina's topic in Imaging - Discussion
Thanks for the suggestion but I have tried this before - unsuccessfully. -
Seem to be lacking file - RTIMULib.h
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Now trying to install Astroberry driver. Went so far through and then got a couple of errors
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Right then... where was I? Process so far :- Downloaded Raspian Jessie Lite Wrote Raspbian image to 8GB micro SD card Downloaded Putty (for windoze) and installed on W7 desktop Ran Putty, set up, and connected to RPi Ran the rasp-config and expanded the partition to fill the card Downloaded and installed bcm2385 library Ran blink and checked that the GPIO pin wiggled between 0v and 1.3v Downloaded INDI-full library and installed plus dependencies.
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Beer Wurlitzer Organ
