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Grass Valley Mixer interface - How is this for a control panel
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TrevoorB  
#1 Posted : Sunday, July 26, 2020 6:50:33 AM(UTC)
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I now have a surplus panel controlling Vmix. It uses a home made interface that plugs in to the panel without any changes or at least nothing that cannot be reversed. I only have a free copy of Vmix so the features are limited to the support this version provides. The software is simple and if you have a version of Vmix over and above the free version I would be happy to write the code to drive additional features, just I cannot test them. I have put together a quick demo of the panel in action at



These Panels frequently tun up on e-Bay for less than £100 and there is one for sale at the moment? Yes you need some engineering skill but nothing complex.
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Anders  
#2 Posted : Sunday, July 26, 2020 10:09:18 AM(UTC)
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Very cool!
Do you have the t-bar working as well?
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ceejay7777  
#3 Posted : Sunday, July 26, 2020 8:42:43 PM(UTC)
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Barry Leffler has been doing this for a while in Sydney (but with ATEM not, to my knowledge, with vMix) ... maybe you can compare notes ... https://www.youtube.com/user/LefflerPost/videos
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TrevoorB  
#4 Posted : Sunday, July 26, 2020 9:08:12 PM(UTC)
TrevoorB

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Anders

The T-bar is interfaced, just getting an unwanted cut as part of the mix.

its really just a magic finger that sends MIDI commands to the shortcuts, when you press a button or pull the T-bar.

Not a software Guru the code for the mixer is in BASIC (I am old), this sends I2c commands to an Arduino that sends MIDI to Vmix. A friend wrote me some C+ to make that bit work.

The cut is not a problem if you pull the on screen fader, but seems a problem when you enter by the MIDI shortcuts.

Just need more brain power to sort it out

The e-bay mixer is at https://www.ebay.co.uk/i...3057035194?ul_noapp=true

The PCB for the final draft of the interface will be on order in the next few weeks.
Just need to test the beta version before we place an order.

PCB's Should be around £10 each, The parts are on top, the code is available from https://www.cq-datv.mobi/downloads.php (free download)
the full story is in the free magazines https://www.cq-datv.mobi/ebooks.php issue 68 onwards

This is not a commercial venture just trying to support hobby peple
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joedemax  
#5 Posted : Monday, July 27, 2020 12:58:02 AM(UTC)
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Hi Trevor,

This is really cool. Once you go to market with the PCB I'd love to look at getting this working with Central Control. If this is of interest send me an email!

Best,

Joe
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