Building a std MIDI mixer [eg. TDS Controller]

tos · June 9, 2006, 10:46am

I’m planing a Traktor 2/3 controller with:

~22 Pots/faders

~30 Pushbuttons/switches

2 Encoders built from mouse wheel

& n LEDs [this will be decided later]

That should be CORE+AIN+2*DIN+DOUT

Question:

-Should I use a MB64 as a jump start and code my way out [i intend to optimise code because there is no need to scan non-existing buttons/pots]

-Is there any special wireing (as with DIN) if I dont intend to use all ICs on DIN/DOUT?

-I intend to use this post as a build-blog for this project, is it ok with you?

stryd_one · June 9, 2006, 11:28am

You do mean AINx4 and DINx4 and DOUTx4 yeh?

1 - Search the forum

2 - See the page for the appropriate module at ucapps.de

3 - I’m sure that will be fine with everyone, it’s a common practice. You can also feel free to create pages on the wiki under the user space. I Look forward to reading it

tos · June 9, 2006, 7:58pm

What else than ___x4 boards. If I ever get the need for more components I’ll just stuff more IC’s.

-AIN moule needs shorts to the GND to avoid random readings “out of thin air”.

-DIN needs no short circuiting bkz data is all on one bus, just need to adjust the number of reads from DIN.

-DOUT needs nothing if i’m right

Correct me if I’m wrong.

I’d b glad to do a page on wiki user space. The downside is that I dont have the digital camera

(only the Phone T610) but I can alwas contribute th community with solutions and new research.

stryd_one · June 9, 2006, 10:11pm

Just checking You didn’t mention “x4” so I thought I should be sure…You’re right on the money man

Hehe I know what you mean, I have a z600, same craaaaappy camera! :-\ But that layout gfx looks pretty

tos · June 11, 2006, 7:24am

Sooo, anyone knows the thrills of going out on saturday evening/night and buying

batteries (on the flow)? Fun fun fun.

Anyway, I was stuck with this problematic idea of mine:

http://www.midibox.org/forum/index.php?topic=6906.msg44302#msg44302

Now It’s solved, I have flashed the PIC and am moving on to powering my CORE and uploading mios.

EDIT: MIOS uploaded. I’m powering the core with PC’s +5V works fine.

tos · June 16, 2006, 5:37pm

I have few things in my mind, first, Adding a VU meter and second, adding some scratch plates connected to some kind of encoder [i’m not sure what exactly].

And a question how to split a main/monitor signal [one to go to the amp, second to the vu meter] without loosing signal quality, would a simple Y-cable be sufficient or there is some circuit (ie. Audio Splitter)?

tos · June 17, 2006, 4:46am

Plz tell me, can touchsensor be built out of a metal plate[we are talking about a scratchplate]?

stryd_one · June 17, 2006, 4:53am

I beleive so, however it would have to be isolated from ground of course, and not too big…

audiocommander · June 17, 2006, 12:12pm

And a question how to split a main/monitor signal [one to go to the amp, second to the vu meter] without loosing signal quality, would a simple Y-cable be sufficient or there is some circuit (ie. Audio Splitter)?

you can use a Y-cable, but you will loose some signal. I’d test it first; I use some Y-cables/patchbay for splitting signals with acceptable results. However, there are active splitters available in music shops (quite expensive, but I’m pretty sure there are some DIY resources as well), that help to keep your audio signal well

Plz tell me, can touchsensor be built out of a metal plate[we are talking about a scratchplate]?

I think so. If you are lucky, you might use J14 that’s used (and MIOS-prepared!) for touch-detection for the motorFader-module. Maybe you’ll find more infos on the MF-page; I saw some excessive infos (schematics, measurements, curves…) from TK here in the forum.

But it should be also no problem to build a touch-switch that uses a DIN-pin.

Cheers,

Michael

tos · August 13, 2006, 10:47pm

Back on the problem, as I have decieded to build my MB TDS Controller into the C128D case [and I’m quite satisfied], there were some layout changes. I’ve added 2 more channels, channel fader and EQ [to be more T3 compatible].

The new layout can be seen HERE

As I’m still planing to use encoders [now with jog dials, bkz I have more space] I’m interested in using MB64 [not E version] with 2-8 encoders.

WHY: Somewhere on forum I’ve read that MB64E uses almost all of free memory and i need memory for some of my specific functions.

Now please tell me, how hard(and possible) would it be to integrate encoder compatibility in MB64?

stryd_one · August 14, 2006, 6:21am

Use the search, ToS

</Obi Wan Kenobi>

tos · August 20, 2006, 6:54am

I did…I always do bfr posting a question. I guess my forum search skill is wery low.

stryd_one · August 20, 2006, 7:55am

In short: use MB64e.

tos · August 23, 2006, 1:02am

Tnx stryd.

Pain & trouble here I come.

stryd_one · August 23, 2006, 9:27am

Oh yeh, if you need more ram… 4620. Gotta love that thing

tos · December 14, 2007, 7:23pm

After almost a year:

Getting it done…

WIKI related page with full story:

The path…

SLP · December 14, 2007, 8:18pm

damn good job!

Is that uv-reactive paint?!? :o

tos · December 14, 2007, 10:38pm

Tnx, it is the UV reactive lime, covered with transparent self-adheesive film that is masking out areas which are not supposed to be UV reactive.

Echopraxia · December 15, 2007, 1:20am

I think alot of us would like to try out the uv paint. I would find it very useful for boarders around a set of buttons or a drawing of the devil to appear. :o What methods for the panel graphics are best for the uv paint negatives? Sorry if it sounds newbish of me.