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tekkydave

Arduino Ascom focuser Mark2

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18 hours ago, CedricTheBrave said:

Hello all 

has anyone converted this focuser to bluetooth?

 

If not Robert Browns version diy focuser pro 2 runs all sorts of interfaces including BT:-) 

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ignore me! my memory is clearly fading as i have already done the BT conversion a while ago but had completely forgotten how i did it!

now re read the thread and found my entries explaining how!

sometimes i wonder how i manage to get through the day!

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I think I posted also here, I just put one of these cheap BT modules onto the serial and it works. Controlling by mobile or PC.

Carsten

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Hi Carsten

Thanks for the reply. Do you have any more information on the "cheap BT modules" and how you connected it?

Many thanks Ken

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15 hours ago, KRYPTON said:

Hi Carsten

Thanks for the reply. Do you have any more information on the "cheap BT modules" and how you connected it?

Many thanks Ken

Search for something like this:

Quote

Wireless-Serien 4 Pin Bluetooth RF Transceiver Modul RS232 P4L6

It is just a BT to Serial adapter.

Carsten

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Sorry to cut in on your bluetooth request (I thought Dave had put this into his project?), this may or may not be of interest.  I'm an existing user of Daves AAF2 project (which is the best Ascom focuser I have come across https://sourceforge.net/p/arduinoascomfocuser/).  And I thought you should know:-

AAF2 is now supported in StellarMate Beta (shortly to go live I suspect).  www.stellarmate.com Go to support /Misc/ Beta etc.  When adding your focuser to Ekos AAF2 should appear in the drop down (pretty much at the top!).  It all seems to work well, many thanks to Jasem Mutlaq for writing the driver, now all we need is for he weather to clear and the Moon to go down..

focuser.jpg.808656d86b22ec3e124bc85f7f84f960.jpg

AAF2 (upside down), rear side shown connected to Baader Diamond Steeeltrack.  Incorporating Nema 14 stepper, DRV8825 connected to Nano (seperate 12V supply requred)

fucuser2.jpg.f66de91fce9ba5236a38880a6487fb69.jpg

Load testing. Belts and wheels from BearingsRUs.  Fitted into a Cambdenboss 50mm box. The hole in the top there is filled with clear silicone, and shows the power status (incorporated a '12V detect' function and flash pin 13 if not there.  Temperature probe not connected here.

Edited by BlobHunter

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Hi everyone

Does anyone know of an indi driver that will work with this focuser setup?
I have been using it very successfully with windows and just build another for my new 8" sct.
With the release of the rpi 4 I am seriously looking at moving stuff over to a pi for control

Any help would be great

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Hi Dyfi

It's supported in StellarMate (www.stellarmate.com).

Stellarmate is an Indi based system running on Pi.  Not got a Pi 4 yet, so don't know how it will work, but assume its compatible.

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I believe!

I've looked at lots of Ascom focusers. Some of them are ridiculously complicated.

I just want something that will show up in Sharpcap, connects to 12V (I know how to set the current limit on the stepper board) and a USB port and focus in and out.

This sounds like it will do the job.

Am I right that all I need is a Nano (and put @tekkydave's sketch on it), a stepper driver (like a pololu) and a stepper than work out my own connections.

I assume exact ratios are unimportant as long as the stepper can handle the weight of the camera.

Do I need to add a special driver to my computer or will Ascom do this?

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Bit of a zombie thread this one, but I've only just recently rediscovered it.

I've modified my original diy manually controlled focuser to #tekkydaves AAF2.

20201017_204741.thumb.jpg.81f6d0148a740bd50399051612020954.jpg20201017_204841.thumb.jpg.607455e86caf6627a9e29f514b8c668d.jpg20201024_105547.thumb.jpg.9380fc0c4d35ad0830f62580b2acd259.jpg20201024_105611.thumb.jpg.d5bb6f3c639cf12229936c29f35cac9d.jpg20201024_105727.thumb.jpg.0160cded3b1250bbdce8aecfc0a84c7c.jpg

The focuser works great in Dave's test program and in APT; but it isn't recognised in N.I.N.A or FireCapture as they are 64 bit programs and the driver for AAF2 is 32 bit.

Having watched numerous YT videos about N.I.N.A.s autofocus feature, I would to give it a try. I would also like to use the focuser for when I do planetary imaging in FireCapture.

So, has anyone written a 64 bit driver for this focuser or know of someone who has and could point me to the download? If not I might try having a go at writing one myself; although I've never done any programming before! 

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Bryan

I hacked Dave's original driver to make it 32/64 bit compatible and overcome the 10,000 step limit so that I could use it with APT.

Can provide a copy if you pm me.  However I have been unable to get it to work with NINA or Voyager - I think the problems go beyond being 64 bit.

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For anyone still interested in getting Dave's AAF2 to work in N.I.N.A. and possibly FireCapture too read on...

I was just playing around with N.I.N.A. and managed to get AAF2 v2.5 to work by selecting 'POTH Hub' from the focuser chooser in N.I.N.A. and then selecting 'AAF2 Focuser' in the subsequent ASCOM chooser.

Everything seems to work and you get to use the excellent auto focus feature in N.I.N.A. 

HTH

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