Author Topic: GHpad FTW (10-Key Pad for GH60)  (Read 372333 times)

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Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #50 on: Mon, 07 January 2013, 17:46:42 »
A second smaller programmable pad sounds brilliant I use a tablet centrally with my keyboard to the left and a very pedestrian number pad to the right, having something like this would be awesome - in the long run I think I may end up with a couple of Access-Is's but being matrix rather than staggered I don't know how comfortable it'll be in the long run... so this +GH60 = perfect.

And if they both had vertical sides, some internal magnets would connect them just fine.

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ooh, yea, they could line up and just snap together using those little neodymium magnets magnets! that's brilliant!


edit: misquote

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #51 on: Mon, 07 January 2013, 17:49:32 »
...Also I'd be happy to post up my kicad stuff, but if Komar is going to run with it, it might be easier/faster to just duplicate and adapt his GH60 design.

Offline samwisekoi

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #52 on: Wed, 09 January 2013, 09:14:55 »
Just a thought here...

Could a GHpad (anywhere from 1x5 to 6x8) use a Teensy and a modified Soarer mod with a USB input port to ADD additional scan codes to the key stream?

This would enable the GHpad to be placed in a daisy-chain with essentially any keyboard.

Keyboard/USB out --> USB in + GHpad switches -> Teensy -> USB out.

There should be plenty of pins on a Teensy 2.0 to control such a thing.

And, as an added benefit, the upstream keyboard would now be programmable!

Thoughts, anyone?

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Offline alaricljs

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #53 on: Wed, 09 January 2013, 09:28:31 »
USB host is a serious pain even when you are targeting just keyboards.  Of those I know who have worked on it, there's none with a complete implementation.
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Offline damorgue

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #54 on: Wed, 09 January 2013, 11:13:25 »
Didn't imp over at DT include something like that in his controller?

Offline bpiphany

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #55 on: Wed, 09 January 2013, 12:58:56 »
I think it might work, but this is the previous revision and doesn't have the other switches added in.  I just did this really quick, so it's not laid out well, but I tried to put the atmega where it would be out of the way of the 0/plus/enter.  I'll play with it some more.

(Attachment Link)

If you want to make your life easier you can use the ATmega32u2, fewer pins, fewer supporting components, smaller footprint.

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #56 on: Wed, 09 January 2013, 15:28:20 »
Or even 16u2, and QFN. We'll have to consider that, since this could fit between switches...
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Offline bpiphany

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #57 on: Wed, 09 January 2013, 16:58:19 »
With QFN everything is small =P

The 16u2 is a tad cheaper, but not any smaller.

Offline danielucf

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #58 on: Fri, 11 January 2013, 07:11:36 »
Just read the entire thread and this looks great. i would love something to match my Pure or GH60 when the time comes so 4x5 is my vote. If I can help out with prototyping let me know.
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Offline noxwood

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #59 on: Sun, 13 January 2013, 19:21:27 »
If you do a GHPad, GH60, and have a case that holds both, why not have a straight row of keys just for F-X? :p

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #60 on: Thu, 24 January 2013, 16:00:51 »
I bought atmega32u2 today to test if my firmware works on it, but I can't compile the code. I'm recompiling avr-gcc, because I think I've broken something;)
I'll be getting down to designing a PCB-integrated controller for this project soon.
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Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #61 on: Thu, 24 January 2013, 19:09:29 »
I bought atmega32u2 today to test if my firmware works on it, but I can't compile the code. I'm recompiling avr-gcc, because I think I've broken something;)
I'll be getting down to designing a PCB-integrated controller for this project soon.

Thanks Komar, appreciate your time and efforts!

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #62 on: Thu, 24 January 2013, 19:18:43 »
This is great news! Not that you broke something in avr-gcc, but that you'll be designing it soon. I can't wait to see it. :D
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Offline IvanIvanovich

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #63 on: Thu, 24 January 2013, 19:27:38 »
Anyone tried contacting this Tuomas person, they made a nice pad just as I would like... here. Maybe they will share?

Offline TheSoulhunter

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #64 on: Thu, 24 January 2013, 20:05:19 »
I bought atmega32u2 today to test if my firmware works on it, but I can't compile the code. I'm recompiling avr-gcc, because I think I've broken something;)
I'll be getting down to designing a PCB-integrated controller for this project soon.

Awesome! :)

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #65 on: Mon, 28 January 2013, 14:36:36 »
At first I had a major problem getting the firmware to run, but then I read in the manual that this chip has only 176 bytes of DPRAM, which is used as USB buffer (as opposed to atmega32u4's 832 bytes).
At first I thought it was a problem, but after dropping double buffering and decreasing the maximum packet size for the protocol's endpoints it should be doable. It's nearly working now, so I think we can use this chip in GHPad.
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Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #66 on: Mon, 28 January 2013, 16:08:14 »
Did you use the 32u2 in order to save space (i.e. does it have a smaller footprint?), to save on production costs, or simply as proof of concept? It seems you limited yourself by using it instead of the 32u4.

Anyway, I'm very excited to see the design you come up with. Once you get the PCB footprint locked in (front-to-back should be the same as GH60), you should post the measurements so case designers can start making some cool designs to match the upcoming GH60 cases.

:D
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Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #67 on: Mon, 28 January 2013, 16:12:24 »
It appears the only limit is the maximum packet size, which shouldn't be a problem.
I used it to save space. 32u2 is 5x5mm in QFN and 7x7mm in TQFP, smaller than 32u4 and also 30% cheaper.
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Offline The_Beast

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #68 on: Mon, 28 January 2013, 16:14:25 »
Like    jdcarpe said, just make it the same "height" as teh GH60 so that they both match. It would be cooler to have more buttons, but I'd much rather have a matching set
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Offline Halverson

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GHpad FTW (10-Key Pad for GH60)
« Reply #69 on: Mon, 28 January 2013, 17:26:38 »
Like jdcarpe said, just make it the same "height" as teh GH60 so that they both match. It would be cooler to have more buttons, but I'd much rather have a matching set

X3

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #70 on: Tue, 29 January 2013, 17:02:27 »
The first prototype on atmega32u2 is working!:D
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Sorry for the mess. It's too late to take this picture well;)
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Offline AKIMbO

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #71 on: Tue, 29 January 2013, 17:12:00 »
The first prototype on atmega32u2 is working!:D
(Attachment Link)


Sorry for the mess. It's too late to take this picture well;)

^Hell yeah....that's awesome!
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Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #72 on: Tue, 29 January 2013, 17:28:27 »
I love it already! :D
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Offline Caaaarrrt

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #73 on: Tue, 29 January 2013, 17:29:07 »
Great job, it's looking good!
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Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #74 on: Tue, 29 January 2013, 17:47:42 »
Thanks!
I'm still having some issues with the GH60 firmware on both keyboards, but once I have this sorted out, I'll get to kicad and work on GHPad design.
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Offline WhiteFireDragon

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #75 on: Tue, 29 January 2013, 19:22:15 »
This is really awesome-sauce. How did you prototype the PCB so fast? It looks like standard key spacing, and I've already started looking into a matching case for it a few days ago, ever since regack mentioned to make a compatible case to match the GH60 case I was designing.

You're pretty much almost to the point where the GH60 prototype PCB is, so maybe when the GB starts, we can combine both the GBs.

Offline The_Beast

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #76 on: Tue, 29 January 2013, 19:23:13 »
This is really awesome-sauce. How did you prototype the PCB so fast? It looks like standard key spacing, and I've already started looking into a matching case for it a few days ago, ever since regack mentioned to make a compatible case to match the GH60 case I was designing.

You're pretty much almost to the point where the GH60 prototype PCB is, so maybe when the GB starts, we can combine both the GBs.

I'd space them out a bit
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Offline WhiteFireDragon

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #77 on: Tue, 29 January 2013, 19:25:22 »
Space what out? GH60 and GHpad are going to be two separate cases.

Offline The_Beast

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #78 on: Tue, 29 January 2013, 19:37:47 »
Space what out? GH60 and GHpad are going to be two separate cases.

The GB, GH60 should end then start GH10
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Offline danielucf

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #79 on: Tue, 29 January 2013, 19:44:43 »
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Offline IvanIvanovich

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #80 on: Tue, 29 January 2013, 19:47:18 »
Why? I say if both are ready just do it all at once as one order at the fab. Maybe it would help price on both?
Also, I think I mentioned the idea before, but how about a case that can fit both 60 and 10, with a usb hub inside to connect them and have 'one' keyboard cable to the pc? End up with something like the Plum96 but without the function row. I would like that a lot too.

Offline samwisekoi

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #81 on: Tue, 29 January 2013, 19:54:13 »
Why? I say if both are ready just do it all at once as one order at the fab. Maybe it would help price on both?
Also, I think I mentioned the idea before, but how about a case that can fit both 60 and 10, with a usb hub inside to connect them and have 'one' keyboard cable to the pc? End up with something like the Plum96 but without the function row. I would like that a lot too.

I proposed using a Teensy to mux the scancode streams.  rknize (IIRC) said that hasn't worked in his experience.  Maybe just a dumb hub would work.

I assume there is a tiny board-level USB hub we could include in a GH60 case.

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Offline WhiteFireDragon

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #82 on: Tue, 29 January 2013, 21:37:53 »
I did this based on standard key spacings, so it should match up with the PCB. I just need USB location and standoff locations if there are any. I suppose it doesn't need standoffs, but then you're forced to use plate-mounted PCB to mount it into the case. Here are some pics of just the bottom case, and one with the bottom piece + plate + brass weight (but without top cover).

 


This should be able to be placed side-by-side with the other GH60 case and everything should line up. I'll post a pic of what it looks like with both cases together.

http://geekhack.org/index.php?topic=39599.0

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #83 on: Tue, 29 January 2013, 22:31:03 »
May I make a suggestion, WFD? I would love it if you could place the standoffs in the exact positions they are in the stock Poker case. That is, four standoffs, designed to be in the same positions as the two leftmost standoffs and two rightmost standoffs in the Poker case. Theoretically, one could then take a saw to a plastic Poker case, cut out the middle portion, and epoxy the left and right bits together to form a plastic case for the GHpad. That also gives you the location of the USB connector.

Edit: I'm also hoping this design principle will serve as a guide to komar007 when designing the PCB for the GHpad.

Edit 2: Where are my manners? That case is freaking AWESOME! Thanks, WFD!
« Last Edit: Tue, 29 January 2013, 22:33:15 by jdcarpe »
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Online Loligagger

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #84 on: Tue, 29 January 2013, 22:37:41 »
Why? I say if both are ready just do it all at once as one order at the fab. Maybe it would help price on both?
Also, I think I mentioned the idea before, but how about a case that can fit both 60 and 10, with a usb hub inside to connect them and have 'one' keyboard cable to the pc? End up with something like the Plum96 but without the function row. I would like that a lot too.

Sounds like a good idea to me. Maybe have an option to place the numpad on the left or the right?

Offline WhiteFireDragon

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #85 on: Tue, 29 January 2013, 23:26:50 »
May I make a suggestion, WFD? I would love it if you could place the standoffs in the exact positions they are in the stock Poker case. That is, four standoffs, designed to be in the same positions as the two leftmost standoffs and two rightmost standoffs in the Poker case. Theoretically, one could then take a saw to a plastic Poker case, cut out the middle portion, and epoxy the left and right bits together to form a plastic case for the GHpad. That also gives you the location of the USB connector.

Edit: I'm also hoping this design principle will serve as a guide to komar007 when designing the PCB for the GHpad.

Edit 2: Where are my manners? That case is freaking AWESOME! Thanks, WFD!

This wouldn't work. The standoffs can only be at certain theoretical positions because you can't have a standoff hole in any position on the PCB. There will be switches in the way. They keypad has switches that are all aligned, while every row in the stock poker is offset by 0.25x key size. I haven't tried it, but I'm assuming it won't work based on this. Even if it were to somehow align properly, the standoffs won't be symmetrical. You'll have two standoffs on top, two in the middle, and none on the bottom.

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #86 on: Wed, 30 January 2013, 02:17:46 »
How did you prototype the PCB so fast?
The controller is on a universal tqfp board, and the keys, well...

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Offline WhiteFireDragon

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #87 on: Wed, 30 January 2013, 03:40:26 »
How did you prototype the PCB so fast?
The controller is on a universal tqfp board, and the keys, well...

(Attachment Link)

Ah I see... so not the final revision PCB that the switches are mounted on. When you get to routing traces, refer to the standoff hole location in the pic below if possible.


Here is my proposed standoff locations, shown by the cut holes. They are exactly between the switches, and symmetric to the PCB/case. jdcarpe, I also drew in your proposed standoff location in blue to show why it wouldn't work. Those are the exact location of the poker standoff locations if you chop out the center of the case. You can see the hole location of the two top standoffs are where switches would be mounted.


 

Offline TheSoulhunter

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #88 on: Wed, 30 January 2013, 04:26:07 »
Will the PCB allow a "all 1x1" configuration?

Offline komar007

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #89 on: Wed, 30 January 2013, 04:26:43 »
Yes, but we'll also need a plate like this.
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Offline TheSoulhunter

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #90 on: Wed, 30 January 2013, 04:33:40 »
Nice! Because I plan to build a "gaming pad" as well with one, 90 degree rotated (H5/V4),
tho that will probably need rerouting for the USB connector and a custom case...

Offline TheSoulhunter

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #91 on: Wed, 30 January 2013, 04:40:28 »
On the other hand, this could be a seperate GH project later this year...
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Offline epicsilas

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #92 on: Wed, 30 January 2013, 09:14:21 »
Nice! Because I plan to build a "gaming pad" as well with one, 90 degree rotated (H5/V4),
tho that will probably need rerouting for the USB connector and a custom case...
I want to do this as well. I'd rather have a small pad with switches for gaming and a full keyboard for typing than just just a full keyboard with switches for gaming.

Offline IvanIvanovich

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #93 on: Wed, 30 January 2013, 14:19:07 »
Yeah, that is what I meant with the combo case, just a regular old usb2 hub inside to connect both the 60 and 10, then have the hub cable be the only cable exit the case. Simple and cheap, no need to try and do anything fancy and complex. So they would still be their own device, but in a neat package together, more for appearance sake and portability.
Depend on how the case was design, I don't see any reason you couldn't mount the 10 on either side.

Offline aggiejy

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GHpad FTW (10-Key Pad for GH60)
« Reply #94 on: Wed, 30 January 2013, 20:32:11 »
So awesome!

Offline simkev

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #95 on: Mon, 04 February 2013, 05:52:16 »
What do you guys think about this?
6x5 layout with four breakoffable keys to make it TKL and 60% capable.

This layout IS NOT breakoffable and it is with a teensy.
A breakoffable board would have to have the chip on the 60% board.
It would also have two usb ports, one on the top part and one on the bottom.
Like this, excuse my paint skills.

The break-off-line would go somewhere where the purple line is.
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Offline GoatMaster

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #96 on: Thu, 14 February 2013, 15:03:24 »
i am very interested !

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #97 on: Mon, 25 February 2013, 08:36:09 »
This is exactly the sort of thing I have been looking for, hope to see this idea keep on rolling!

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Offline calavera

  • Posts: 1713
  • Location: South Korea
Re: GHpad FTW (10-Key Pad for GH60)
« Reply #98 on: Sun, 03 March 2013, 13:39:39 »
I probably missed it but what will the case be like and will this be plate mounted?

Offline simkev

  • Posts: 103
  • Location: 127.0.0.1 - SWEDEN
Re: GHpad FTW (10-Key Pad for GH60)
« Reply #99 on: Sun, 03 March 2013, 16:34:05 »
I probably missed it but what will the case be like and will this be plate mounted?
I am not sure but probably it will be only a pcb that can be either plate or pcb mounted. WFD will probably design a case for it. The break-offable pcb is still to be designed though. 
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