Jan Hruby replied to the topic 'Do it yourself focuser: which one?' in the forum. 3 weeks ago

uses INDIDUINO - I didn't find it very user friendly.

I just mock tested Focuserv168_DRV8825_M.ino and it indeed works with moonlite driver under INDI. I have to make some changes for my construction as it rotates the motor too slowly (I'm using 1/32 microstep but driver is made for full or 1/2 step). It's the way to go.

Easydriver is fine.

+ you don't need any other components (like capacitors) as one is already on the driver (all other common drivers such as DRV8825, DRV8834, SSS etc must have capacitor between Vin and GND, size about 47-100uF and not less than 50V to eliminate voltage spikes, believe me, driver won't survive that).

- easy driver can drive motor with only 500mA and it tend to generate some heat. My Nema11 motors are 670mA and Nema 14 motors on eBay run on 800mA or 1200mA. Running these motors with easydriver gives probably too little torque.
- offers only 1/8 microsteping but not sure how much limiting this is. My EQ5 handcontroller is using Silent Step Sticks (SSS) at 1/32 microsteps and the highest slew speed is 1000x sidereal so fainter steps don't limit max speed.

Read More...

Jan Hruby replied to the topic 'Do it yourself focuser: which one?' in the forum. 3 weeks ago

Looks promising, understandable code with possible modifications. The only thing is that it's so complex that last hour I've been just installing missing libraries and for some reason can't get LCD.h working. "No such file or directory". Despite LCD.h is present in LiquidCrystal library. Or did I missed something? Is there a simple "focuser only" sketch? I don't need LCDs, sensors, analog buttons...

at the end of .pdf file is addressed uneven microsteping issue with DRV8825 and possible solution with four diodes. Didn't give satisfactory results. DRV8834 shows smoother movement but keeps missing steps on regular basis (different microsteping with only 2 MS pins and limited motor voltage to under 11V and max current is 1.5A). Absolutely smooth and even microsteping can do only Silent Step Stick (look at github, easiest to order from Germany or your local distributor, don't bother to search on eBay). There is a user friendly version for 5V systems only, I recommend to start with that one so no need to worry about power up sequence. And as a bonus it's really absolutely silent (in silent mode, I didn't notice any noticeable drop in torque). At slower speeds I have to look or touch the belt to sense a motion, so silent it is.

Read More...

Jan Hruby replied to the topic 'Do it yourself focuser: which one?' in the forum. 3 weeks ago

And also I plan to attach it to my newton too once I master the firmware.

Read More...

Jan Hruby replied to the topic 'Do it yourself focuser: which one?' in the forum. 3 weeks ago

I doesn't answer your question directly but I'm building auto focuser too. Here are some pictures.

Motor is Nema11 sized stepper with MXL 15T pulley and belt attached to micro focusing wheel (in case of TS apo it gives reduction 1:10 or 11). Belt teeth don't exactly fit into the focuser wheel but it's working even when the belt is quite loose. Aluminium bracket is 2mm thick, screws are M2.5. Belt length is MXL60 and width 6mm. It's controlled by stepper motor driver and arduino nano hidden in the white box with blue buttons on the first picture, 2 buttons are for slow F/B, two other for fast forward/backward (original idea was to use two for driving F/B and other two as speed regulation, it's just sketch issue). Inside the box now is Pololu DRV8834 but I plan to upgrade it eventually with Silent Step Stick (I have them in EQ5 handcontroller and I'm very pleased with silent, smooth and precise operation). Actually I don't use this focusing box at all, I reconnect cable from DEC motor and operate the focuser with mount handcontroller when RA motor is still tracking - don't need DEC for focusing.

So far it's for manual remote focusing, better than touching the focuser with fingers but not automatic. That will be next step but I didn't get into Indiduino and Formata protocol yet. Arduino is loaded with Formata sketch and appropriate INDI driver is modified with correct arduino pins, then PC (RPi3 in my case) is connected to Arduino via USB and it should work.

I looked briefly into formata/indiduino files but I didn't understand it very much where and how to define step/dir/sleep pins in indiduino (also my sleep pin is common with reset and microstepping DRV pins but I have separated Enable).

Read More...

Jan Hruby replied to the topic 'QHY163 in INDI' in the forum. 1 month ago

Is there any progress with QHY163 camera?

Read More...

Jan Hruby replied to the topic 'QHY9s CFW2-s filter wheel unable to reach 1st possition' in the forum. 1 month ago

Now it's working perfectly. Thanks a lot.

Read More...

Jan Hruby replied to the topic 'Dithering is not executed with external lin_guider' in the forum. 2 months ago

Great, looking forward trying it.

Read More...

Jan Hruby replied to the topic 'Dithering is not executed with external lin_guider' in the forum. 2 months ago

Didn't mention it earlier but I run whole Kstars on RPi, not just server. Only QHY9s is physically present and mounted, rest are simulators (telescope, focuser, guidecam) and guiding QHY5L-ii-m stays unconnected as being used by Lin guider. I'll try tonight with some changes and maybe keep an eye on it for a while... it's windy anyway.

btw QHY9 filterwheel still gives me requested filter +1 making unreachable 1st filter (1st returns #2, 2nd returns #3, 3rd returns #4, 4th returns #5 and 5th returns confirmation of #5 with ordinary delay but without rotating filters leaving effectively last called filter in the path). There must be some tiny hitch in the code since filterwheel works fine in EZCAP.

One last think why I prefer LG to integrated guiding interface. There is full manual control over gain and white point in linguider but in INDI it's running on auto. When there is significant change in star contrast/brightness Kstars freezes for a while when processing last image and eventually loosing guiding star or making panic corrections => guiding aborted. also reticule in LG is user-friendly as I can mark position of guide star and return there later after making some work around the mount (like fixing hand controller as last night) and it shows directions of RA and DEC.

Read More...

Jan Hruby replied to the topic 'Dithering is not executed with external lin_guider' in the forum. 2 months ago

same here. calibration is successful but when first dithering is ordered it throws this "timeout error" and actually does not proceed to next shot until manual intervention. Thus I gave up on dither to collect at least some data during the night. Pity as linguider gives superior guiding performance to integrated guider(at least calibration actually works there).

Or like today for some reason during exposing 4th shot I came to the rig, checked via VNCviewer how is it going (I looked at guiding tab and examined 3th frame in FITSviewer) - all good, and when I returned 4 hours later indi was still downloading 4th frame (btw download takes no more than10s). So after first useful clear night this year I have just 3 frames and heaps of frustration. I guess there might be a hitch in some settings but can't find where. When I start imaging I get question something like "image transfer disabled, wanna unable (or opposite)?" so I click yes and shooting starts but at least this last time for first picture only, than I had to restart shooting and after 3 shots it happened again. Don't understand what is it asking. there are only 2 devices connected: QHY9 and RPi3. No client, nothing else (not counting VNCviewer and guider).

Read More...

Jan Hruby thanked sami aldoseri in topic Updated QHY SDK 4 months ago
Jan Hruby replied to the topic 'indi_qhy_ccd segfault (QHY 5L-II mono)' in the forum. 4 months ago

I experienced INDI crashing issue under the most recent stable Kubuntu. Everything worked fine before on other machines and software. For a while I solved the problem by using Lin-Guider instead of internal guiding utility. Now I switched to Ubuntu MATE and problem disappeared. Laptop and other hardware is identical.

Ubuntu Mate has also other advantage - it's available in several variants supporting various hardware, including Raspberry Pi (see latest tutorial - it's really working and last test I made proved usable response, download time for QHY9s is around 10s which is almost as fast as download time on fast notebook: core i7, 8GB RAM...).

Read More...

Jan Hruby replied to the topic 'Troubles with QHY driver on ARM device' in the forum. 4 months ago

Actually I'm having same crashing problem on normal 64 laptop. Running new Kubuntu 16.04, Kstars and indi (everything installed today on Lenovo T420s) and QHY9s works but QHY 5L-II-M causes crash of indiserver when I try to expose. That didn't happen on my other netbook before (otherwise same setup) and QHY 5L is working fine when plugged into RPi 3 running Indiserver and accessed from same Lenovo machine.

And still filter wheel on QHY9s is giving wrong filters as mentioned before but working fine in QHYsoftware.

Read More...

Jan Hruby replied to the topic 'My DIY Focuser with AstroBerry' in the forum. 5 months ago

for using astroberry piface drivers which expansion board is necessary? "Piface digital" or "piface relay+" or "piface relay extra"?
My plan is to build up focuser with stepper motor. I'm more familiar using Arduino and stepper motor driver but don't know how to link it to INDI libraries.

Read More...

Jan Hruby replied to the topic 'QHY9s CFW2-s filter wheel unable to reach 1st possition' in the forum. 5 months ago

just tested in EZCAP and I can select all 5 filters and return to No#1 without any problem. On the other hand ASCOM does not recognize filter wheel at all.

Read More...

Jan Hruby created a new topic ' QHY9s CFW2-s filter wheel unable to reach 1st possition' in the forum. 5 months ago

I'm trying to run my astro imaging setup (EQ-5/HEQ5, QHY9s and QHY5L for guinding) with RPi3 running indiserver and controlling it remotely from an old Acer Aspire one 255 netbook. Raspberry is running most recent raspbian and Acer most recent Kubuntu. I failed to install libraries and drives on Acer, actually the only machine I managed was Raspberry... The main purpose of this is that I didn't like ASCOM platform - chaotic, dozen small windows overlaying each other and unstable under astroart (freezing).

Filter wheel is connected to QHY9 camera and at connection the wheel runs through all positions and stops at No#1 (correct behavior according to manual). If I choose filter from dropbox:
#1 returns filter 2
#2 returns filter 3
#3 returns filter 4
#4 returns filter 5
#5 returns NOTHING
#6 ~ 9 returns nothing (filter wheel has 5 possitions)

After I change the filter I cannot reach No#1 anymore.

Is it a bug or can I fix it somewhere?

_________
I have one more issue with EKOS - window is too tall so I cannot see the very bottom. Are there any buttons under progress bar in CCD tab? Netbook is running at 1024x600px resolution and there is no simple way how to blow it up in Kubuntu.

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!