gordon77
Posts: 5121
Joined: Sun Aug 05, 2012 3:12 pm

Re: Astro photography

Sat Nov 17, 2012 4:55 pm

I've been working a Python programme that uses a webcam , then guides the scope to follow it.
The RPi outputs Meade LX200 commands eg :Mgn1000 to a Arduino Uno which then controls my LX10.

It's not totally finished but if anyone wants to try it.

Gordon

gordon77
Posts: 5121
Joined: Sun Aug 05, 2012 3:12 pm

Re: Astro photography

Sun Nov 18, 2012 3:44 pm

Here's a screenshot (simulated star for testing!)
Attachments
autoguider_gt.jpg
autoguider_gt.jpg (58.52 KiB) Viewed 2259 times

patrickduis
Posts: 2
Joined: Tue Dec 11, 2012 2:23 pm
Location: Netherlands

Re: Astro photography

Tue Dec 11, 2012 3:03 pm

Hi, I just finished my PICgoto telescopic mount controller, it can handle all steppermotor controlled mounts with 12V steppers up to 2.5A. It is an open source project. The PCB layout/design + PIC hex files can be downloaded at http://es.groups.yahoo.com/group/Picgotogroup/
It is in Spanish, but the guys over there also talk English.
I am now busy building a handcontroller, but are thinking about using the RPI for that so I can include a star database.
I already took a test-shot with the control of this system on my NEQ5 mount (fitted with 144 tooth RA wormwheel, 7.5 degr./step steppers and 1:120 reduction). But since the wormwheel number of tooth and reduction factor can be set it can also drive a Losmandy G-11, Vixen GP-DX , HEQ5pro/EQ6pro or even a big Astrotechniek CP-180 mount.
Attachments
M45_12x300s_ISO200_100mmF2_8_20bias_30darks_PICgotoNEQ5EditedSmallSmallest.jpg
Pleiades 12x300s
M45_12x300s_ISO200_100mmF2_8_20bias_30darks_PICgotoNEQ5EditedSmallSmallest.jpg (54.49 KiB) Viewed 2205 times
IMG_5491 PICgoto inside boxSmall.jpg
Inside of the PICgoto
IMG_5491 PICgoto inside boxSmall.jpg (58.1 KiB) Viewed 2205 times
IMG_5535 PICgoto finished dec 2012small.jpg
Testing of PICgoto on NEQ5 mount
IMG_5535 PICgoto finished dec 2012small.jpg (57.63 KiB) Viewed 2205 times
200mmF5/HEQ5pro in backyard observatory. Halley:300mmF3.8 Takahashi Astrograph on CP-180
Under construction: heavy 100kg+ payload ASH mount with Littlefoot Elegance Photo control

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