* Build Log * DIY Controllers (gamepad PCB)

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* Build Log * DIY Controllers (gamepad PCB)
Posted on: 02.10.2010 by Wava Egizi
Hi everyone!

I have finally bought some material for my up and coming controller project! I already own a Kontrol X1 that I love, but I also love DIY controllers. So why not build two controllers that have the same dimensions as the X1 to have on each side of it?

As a cheap solution I will use two USB gamepad PCBs! Each gamepad cost about $18 and will give me the following:
4 analog inputs for sliders/knobs
12 (maybe 14) digital inputs for buttons

That is quite what I need for some fun play!

The size of my controllers are the same as the X1: 120x29mm

As a nice detail and addition I will add LEDs to all the buttons. When a button is pushed, the buttons LED will light up! Not as nice as MIDI controlled LEDs, but it will do

As seen on the attached image I will be using two different designs. Functions as followed:

LEFT CONTROLLER:
1 crossfader
2 volume faders (the far left, and far right faders)
1 fader with, until now, planned function
12 buttons for cue points, and other basic functions. Maybe some effects.

I believe that I am satisfied with the left controllers layout. I believe it has the most basic functions I need: crossfader and volume faders.

I like the 3x3 button layout more than 4x4. 3x3 takes less space, and somehow feels better to play with...

For the right controller I'm not as sure... On the attached image there is 2 faders and 2 knobs on it. I added some knobs instead of faders, because the left controller doesn't have any. But I'm not sure... How do you believe I should layout my right controller? A jogwheel would be SO nice, but the budget does not accept it

/ Oskar

Wava Egizi
13.10.2010
Okey! Thanks!

I love LEDs!

Edmond Batta
10.10.2010
Originally Posted by oskars
I hear you... But why do You believe so?
Any idea what gritsize of sandpaper would be suitable?
800 or 1000 would work.
Wava Egizi
10.10.2010
I hear you... But why do You believe so?
Any idea what gritsize of sandpaper would be suitable?
Graham Frazier
10.10.2010
Matte surface all the way.
Wava Egizi
10.10.2010
Some success!

Sorry for bad quality photos. I will make that up to you later!

But I have a question... Glossy surface, or matt? Should I sand it or not? The glossy is really nice, but will soon get finger printed... So... Matt or glossy?
Wava Egizi
07.10.2010
Originally Posted by fullenglishpint
For the ones lower down you might want to use smaller buttons (ie not arcade buttons) instead of switches? Switches are a bit clunky to use quickly during a mix.
Yeah! Maybe! But I haven't found any nice and slick smaller buttons...
Tatum Ansaldo
07.10.2010
For the ones lower down you might want to use smaller buttons (ie not arcade buttons) instead of switches? Switches are a bit clunky to use quickly during a mix.
Wava Egizi
06.10.2010
I underestimated my gamepad PCBs.. they can take up to 20 buttons. So I am +8 buttons know...

But I still doesn't have the space for more arcade buttons... So I added some switches (http://www.electrokit.se/images/mini-41002984.jpg)... On the sketch they are those who are a rectangle with a circle in it.

I believe I shall use them as ON/OFF switches... Those who are above the arcade buttons can be used as SHIFT and HOLD buttons...

Any advice someone?

Tatum Ansaldo
05.10.2010
moving down from the top activates an effect and D/W increases as you go down. other than that, you got it.
Wava Egizi
05.10.2010
naah... doesn't get that superfader theory...

When the fader is at top:
- Everything is off.

When the fader starts to move down:
- The D/W increases.
- Is any effect active here?

When the fader is at bottom:
- The D/W is at 100%
- And another effect activates.

So there is to effect activated and the D/W is at full when the fader hits bottom?
Tatum Ansaldo
05.10.2010
yep that's exactly what i meant!
Wava Egizi
05.10.2010
Originally Posted by fullenglishpint
Since you already have an X1 do you need play/pause buttons? If you do, might be better to have deck A on the left and B on the right. Maybe.

Do you have room for the x-fader and lines on the right under the 4x3? that would free up the whole left side to mess around with FX presets and the like. I don't know if it's possible, but if you could have a set of fader set up with smart functionality like the VCI-100SE fader FX mode (top of the fader is off, slide down turns on and increases D/W of one effect and hitting the bottom activates another) it would be awesome!
Yeah. the play buttons aren't written in stone yet

Yes. The lines+crossfaders fits right under the 4x3...


About the super faders... please see my sketch... I don't know what you mean with "activates another effect when fader is at the bottom"... But I believe I can achieve a super fader with a couple of microswitches, instead of advanced software in the PCB...
Tatum Ansaldo
05.10.2010
Since you already have an X1 do you need play/pause buttons? If you do, might be better to have deck A on the left and B on the right. Maybe.

Do you have room for the x-fader and lines on the right under the 4x3? that would free up the whole left side to mess around with FX presets and the like. I don't know if it's possible, but if you could have a set of fader set up with smart functionality like the VCI-100SE fader FX mode (top of the fader is off, slide down turns on and increases D/W of one effect and hitting the bottom activates another) it would be awesome!
Wava Egizi
05.10.2010
Thank you a lot for your thougths! That helps me a lot. That's what I need! Someones advice!

Check my new layouts... Maybe like that?

Left controller upper buttons:
3x3 = Dont know exact functions yet

Left controller faders:
Fader 1 = Volume Deck A/C
Fader 2 = Dont know yet?
Fader 3 = Volume Deck B/D
Crossfader = crossfader =)

Lower button 1 = Play/Pause Deck A
Lower Button 2 = Dont know yet?
Lower Button 3 = Play/Pause Deck B

Right controller buttons:
4x3 = CUE points

Right controller faders:
Horisontal Fader 1 = Effect
Knob 1 = Effect
Knob 2 = Effect
Horionstal Fader 2 = Effect

Tatum Ansaldo
05.10.2010
To start with, since you have a world of possibilities for where all your controls go i'd have a real believe about which controls you want to use for what. It would be very annoying to come up with a great mapping idea further down the line that you have the wrong button configuration for!

Personally I'd have my x-fader and levels on one side and a 4x3 on the other, then whatever you want. I'd also have my 4x3 on my stronger side, ie the right since I'm right handed. Gives you better speed and accuracy.
Wava Egizi
05.10.2010
argh. Wrote a long answer... But somehow Safari closed...!

I can not have a 4x4 grid because the gamepad PCB only have 12-14 buttons.

Yeah, I know the reason why 4x4 is popular... But I need something that takes less space (width), and something that uses only 12 buttons.

The X1 has a 4x2 grid for CUE points... So maybe a 4x3 grid for my left controller is a good solution?

Still... It's kool to have 3 buttons "easy to reach" near you...

Please help me! I am definitely NOT sure about the grids...
Tatum Ansaldo
05.10.2010
Are you absolutely sure you only want 3x3 grids? There are reasons for having 4x4, not least because many things in dance music come in 4s (believe harder, better, faster, stronger!). I used to have a Numark Omni control which had 3 buttons per deck along the bottom, I mapped a cue juggle mode to them but really missed having a 4th button so had to try something else. Maybe even a 4x3 to save space?
Wava Egizi
04.10.2010
I believe I will go on with this layout... It seems fun...
But then again... Seeing that first layout in my first post, for the right controller... I like the faders vertical too... Can't decide...

Wava Egizi
03.10.2010
Originally Posted by Str8upDrew
Check out this blog post for some interesting layout idea's...
http://www.djranking s.com/2010/09/1...-midi-fighter/
Thank you!

Originally Posted by thelpb
Lookin good man, I like the concept!

What software did you use to layout your panel design?
Thanks! =) I use Adobe Illustrator! It seems like the community made the images smaller... Don't know why.
Lala Cortina
02.10.2010
Lookin good man, I like the concept!

What software did you use to layout your panel design?
Graham Frazier
02.10.2010
Check out this blog post for some interesting layout idea's...
http://www.djranking s.com/2010/09/1...-midi-fighter/

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