Super-cheap DIY midi controller... questions

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Super-cheap DIY midi controller... questions
Posted on: 06.11.2009 by Logan Lassey
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Shay Wyche
10.11.2009
Originally Posted by cabdoctor
Is there any way to wire in a rotary encoder to a gamepad? Perhaps so that it triggers one button when rotating clockwise and another button when rotating the opposite direction.
This apparently supports rotary encoders. I've bought one and I'm in the process of building a controller. I've ordered cheap rotaries and hope to use them in the design.

http://www.leobodnar.com/products/BU0836X/
Logan Lassey
06.11.2009
Hi all,

So I was considering buying an Akai LPD8, purely so I could use the pads for triggering stuff in Traktor. However, even though it is a bargain at
Shay Wyche
10.11.2009
Originally Posted by cabdoctor
Is there any way to wire in a rotary encoder to a gamepad? Perhaps so that it triggers one button when rotating clockwise and another button when rotating the opposite direction.
This apparently supports rotary encoders. I've bought one and I'm in the process of building a controller. I've ordered cheap rotaries and hope to use them in the design.

http://www.leobodnar.com/products/BU0836X/
Monet Yucel
10.11.2009
The analog sticks on a game pad are two pots not encoders so you can't just swap them over, however on this thread I posted two schematics that will convert an encoder signal into two seperate pulses, so turning clockwise will activate one button and counter clockwise the other.

http://djranking s.com/community /showthread.php?t=6902
Logan Lassey
10.11.2009
Thanks for the reply Ninja. I am definitely going the gamepad route for now. Looking forward to the continuation of your xbox controller thread...

Cabdoctor - the way I understand it a joystick is basically two rotary devices combined, so you should be able to replace one with the other... that's as far as my knowledge goes though I'm afraid, have not done it myself yet.
Buster Kiper
10.11.2009
Is there any way to wire in a rotary encoder to a gamepad? Perhaps so that it triggers one button when rotating clockwise and another button when rotating the opposite direction.
Monet Yucel
09.11.2009
Game pad is definately cheap, midibox is a fantastic platform but unless you know what you're doing it will cost a heap, i'm working on both principles at the moment so I would recommend the gamepad for starters then if you want more I could sort you out with a midibox platform as I'm etching my own boards and can source the components for wholesale prices.
Logan Lassey
08.11.2009
Thanks for all the input guys. At this point I have reached the conclusion that I should be making a HID device rather than a midi one as it is definitely both easier and cheaper. Wasn't sure what device to build it from but now I'm pretty sure I'll use a gamepad...
Cheers, P
Latia Pfleider
07.11.2009
If your believeing of a large controller with more than a few analogs when it comes down to it its not that much cheaper to build your own controller if its cheaper at all. The amount of time building one can be months alone in research. Mose of us building our own already have controllers and are looking for something custom.

That said if your doing something small. Check out a post here about using a xbox controller by B.C.Ninja

http://www.djranking s.com/community /showthread.php?t=7027

Im not trying to discourage at all.


some options are


midibox (like the others said midibox is by far the choice with the most options in what you can do but its quite the project)

hale umc 32 http://www.halemicro.com/Products/Products.html

u-hid http://www.u-hid.com/ (not midi)
Katina Eastburn
07.11.2009
if the aim is to only have buttons, the cheapest thing is to strip down a pc keyboard.


You can have almost as many buttons as you want and, it is USB, and very cheap and simple
Bertram Shiflett
07.11.2009
perhaps that helps too:
http://noofny.blogspot.com/
Bertram Shiflett
07.11.2009
read that:
http://www.midibox.org/dokuwiki/
and look at:
http://www.ucapps.de/mbhp/mbhp_midibox64.gif
Logan Lassey
06.11.2009
Thanks.
I had checked out the midibox website, but it all seems a bit too in-depth and after quite a bit of reading I was none the wiser.
If anyone has a link to a step by step guide on how to implement a very simple midibox solution that would be great...
Bertram Shiflett
06.11.2009
search for midibox
that's the cheapest thing I believe
Logan Lassey
06.11.2009
P.S. I want this to be a USB based thing of course

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