Author Topic: GHpad FTW (10-Key Pad for GH60)  (Read 375526 times)

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Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #850 on: Fri, 13 December 2013, 20:21:57 »
digikey has 830 of the ATMEGA32U4-AUR... but I'm not clear on what the difference is from ATMEGA32U4-AU.  Is it just packaging?

http://www.digikey.com/product-detail/en/ATMEGA32U4-AUR/ATMEGA32U4-AURCT-ND/3440960

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #851 on: Fri, 13 December 2013, 21:07:58 »

digikey has 830 of the ATMEGA32U4-AUR... but I'm not clear on what the difference is from ATMEGA32U4-AU.  Is it just packaging?

http://www.digikey.com/product-detail/en/ATMEGA32U4-AUR/ATMEGA32U4-AURCT-ND/3440960

Yes, those are packed in cut tape reels, where the other version we have been buying are in trays. So probably not suitable for pick-and-place, but fine for hand soldering.
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Offline whiskytango

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #852 on: Sat, 14 December 2013, 00:34:12 »
OK, two things:

1. Can somebody tell me where R4 goes? I cannot find it anywhere on the PCB.

2. I dropped one of the C4-C8s and I cannot find it. Does anyone have an extra?
I stay busy with work and family these days, but I'm still around, lurking.

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #853 on: Sat, 14 December 2013, 06:59:58 »
R4 is actually a through-hole resistor for the numlck led and should be sized accordingly for the led chosen.  It's easier to just find through hole ones lying about, which is why it is not smd.  I suppose that could be changed.

Offline Photekq

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #854 on: Sat, 14 December 2013, 07:06:17 »
R4 is actually a through-hole resistor for the numlck led and should be sized accordingly for the led chosen.  It's easier to just find through hole ones lying about, which is why it is not smd.  I suppose that could be changed.
So the R4 we have doesn't actually go anywhere?

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #855 on: Sat, 14 December 2013, 07:46:03 »
R4 is actually a through-hole resistor for the numlck led and should be sized accordingly for the led chosen.  It's easier to just find through hole ones lying about, which is why it is not smd.  I suppose that could be changed.
So the R4 we have doesn't actually go anywhere?

The 0804 resistor labeled R4 doesn't no.  It's like a spare lego piece! (no idea what value it is though)

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #856 on: Sat, 14 December 2013, 08:01:50 »
Rev 0.12 (the black PCB)

Ref       Value           Quantity  Footprint       Part   
--------------------------------------------------------------------------------
C1,C2     22pF            2         804            VJ0805A220GXXCW1BC     
C3, C8    1uF             2         805            VJ0805Y105JXQTW1BC     
C4..C7    0.1uF           4         805            VJ0805Y104JXXAC
D1..D24   1N4148          24        SOD-123        1N4148 
IC1       ATMEGA32U4      1         TQFP44         ATmega32U4-AU   
J1        USB MINI-B      1                        Molex 67503-1020     
R1,R2     22 Ohm          2         805            CRCW080522R0JNTABC     
R3, R5    10 kOhm         1         805            CRCW080510K0FKEB       
S0        ADTSMW69NVTR    1                        tact sw 6.30x6.20mm
X1        7M-16.000MAAJ-T 1                        16MHz Crystal
S1..S211  MX1A            17-24     CHERRY MX      Quantity Depends on Layout
-
DC1..DF3  LED             4         through-hole   User Choice   
R4        ? kOhm          1         through-hole   Value depends on DC1 LED
RF1       ? kOhm          1         through-hole   Value depends on DF1 LED
RF2       ? kOhm          1         through-hole   Value depends on DF2 LED
RF3       ? kOhm          1         through-hole   Value depends on DF3 LED
-
U1        MCP23018        1         SSOP24         MCP23018-E/SS *MCP OPTION*
R6,R7     2.2 kOhm        2         805            CRCW08052K20JNEA *MCP OPTION*
« Last Edit: Sun, 22 December 2013, 12:34:48 by regack »

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #857 on: Mon, 16 December 2013, 14:01:02 »
So I'm getting one of these:

Show Image


Have no clue what revision it is, I haven't been keeping up at all with this thread I'm just going to build it and let you guys know what difficulties I come across. What diodes do I need? Anything else I need to know or can I just assemble and program as I normally would ?
Ahhhhhh
Awesome work Regack!

Any chance to get a GB? I would love to test it.
I wanna use the I2C IC and what you did into this board would help me a lot!
I would like to get 4 boards ...
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #858 on: Mon, 16 December 2013, 16:01:51 »
I was originally going to have them made as a one off order, but then it dawned on me that I could just order off oshpark, since the pcb is pretty small.

It's only $66.60 for 3 units

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #859 on: Mon, 16 December 2013, 19:54:49 »
I was originally going to have them made as a one off order, but then it dawned on me that I could just order off oshpark, since the pcb is pretty small.

It's only $66.60 for 3 units
Hmmm, kinda expensive for 3 small PCBs ...
Have you tried Seedstudio - Fusion PCB? I think you can get 10 PCBs (10cm x 10cm ) per less than 40 bucks ...
« Last Edit: Mon, 16 December 2013, 19:58:51 by agodinhost »
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
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Offline metalliqaz

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #860 on: Mon, 16 December 2013, 22:37:54 »
that price seems pretty good to me.  Less than that and you risk a serious drop in quality...

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #861 on: Mon, 16 December 2013, 22:45:20 »
I need better eyes for these SOD-123 diodes. I think I soldered them on backwards. Surely there is an 0805 or 0603 package diode that will fit the pad footprint?
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #862 on: Mon, 16 December 2013, 23:58:20 »
I was originally going to have them made as a one off order, but then it dawned on me that I could just order off oshpark, since the pcb is pretty small.

It's only $66.60 for 3 units
Hmmm, kinda expensive for 3 small PCBs ...
Have you tried Seedstudio - Fusion PCB? I think you can get 10 PCBs (10cm x 10cm ) per less than 40 bucks ...

im getting ~$44 + $12 shipping from seeed studio's calculator for 5 units.

realistically, I am probably only going to use 2 pcbs.

unless someone wants a lot of units, I'm just going to order from osh park near the end of the week (so that it doesn't arrive while im out of town for the holidays)

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #863 on: Tue, 17 December 2013, 06:10:59 »
I was originally going to have them made as a one off order, but then it dawned on me that I could just order off oshpark, since the pcb is pretty small.

It's only $66.60 for 3 units
Hmmm, kinda expensive for 3 small PCBs ...
Have you tried Seedstudio - Fusion PCB? I think you can get 10 PCBs (10cm x 10cm ) per less than 40 bucks ...

im getting ~$44 + $12 shipping from seeed studio's calculator for 5 units.

realistically, I am probably only going to use 2 pcbs.

unless someone wants a lot of units, I'm just going to order from osh park near the end of the week (so that it doesn't arrive while im out of town for the holidays)
For 10cm x 10cm I'm getting 10 by US$ 24,90 + shipping (PCB without the extra row, the area to be cutted off)
For 10cm x 15cm I'm getting 10 by US$ 55,90 + shipping (complete PCB)

PCB Qty.......: 10
PCB Layers....:  2
PCB Thickness.: 1.6mm
PCB Dimension.: 10cm max * 10cm max OR 10cm max * 15cm max
PCB Color.....: Green
Surface Finish: Hasl
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
GH60 |GH60-Alps |GH60-BT |GHPad/GHPad Alps |GH60-Case |Alps TKL |EL Wire |OS Controller, Round 2 |My Custom Keyboard |WTT/WTB

Offline whiskytango

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #864 on: Tue, 17 December 2013, 08:14:25 »
I need better eyes for these SOD-123 diodes. I think I soldered them on backwards. Surely there is an 0805 or 0603 package diode that will fit the pad footprint?

I thought you said you ordered some 523s?

I have soldered on all my 523 diodes. They are freaking tiny! The most time-consuming part was figuring out which end was the cathode. I have a lamp with built in magnifier, and I found that you could hold a diode right under the light and tilt it until the light would shine just right off of it so you could make out the markings. You can also tell which direction it's facing by the direction of the text on the diode. Mine said T4 or something like that and the cathode band was always in the same orientation to the text as shown on the data sheet.

I am now just waiting on a capacitor. I dropped one of mine and lost the little thing, so I ordered some more from digi-key. I needed some resistors and through hole diodes anyway, so that's not a huge deal.
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Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #865 on: Tue, 17 December 2013, 09:06:48 »
I need better eyes for these SOD-123 diodes. I think I soldered them on backwards. Surely there is an 0805 or 0603 package diode that will fit the pad footprint?

I thought you said you ordered some 523s?

I have soldered on all my 523 diodes. They are freaking tiny! The most time-consuming part was figuring out which end was the cathode. I have a lamp with built in magnifier, and I found that you could hold a diode right under the light and tilt it until the light would shine just right off of it so you could make out the markings. You can also tell which direction it's facing by the direction of the text on the diode. Mine said T4 or something like that and the cathode band was always in the same orientation to the text as shown on the data sheet.

I am now just waiting on a capacitor. I dropped one of mine and lost the little thing, so I ordered some more from digi-key. I needed some resistors and through hole diodes anyway, so that's not a huge deal.

Yes, that's what I meant...those tiny 523's. I need a loupe or something to see the markings. ;)
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #866 on: Tue, 17 December 2013, 14:17:20 »
I was originally going to have them made as a one off order, but then it dawned on me that I could just order off oshpark, since the pcb is pretty small.

It's only $66.60 for 3 units
Hmmm, kinda expensive for 3 small PCBs ...
Have you tried Seedstudio - Fusion PCB? I think you can get 10 PCBs (10cm x 10cm ) per less than 40 bucks ...

im getting ~$44 + $12 shipping from seeed studio's calculator for 5 units.

realistically, I am probably only going to use 2 pcbs.

unless someone wants a lot of units, I'm just going to order from osh park near the end of the week (so that it doesn't arrive while im out of town for the holidays)
For 10cm x 10cm I'm getting 10 by US$ 24,90 + shipping (PCB without the extra row, the area to be cutted off)
For 10cm x 15cm I'm getting 10 by US$ 55,90 + shipping (complete PCB)

PCB Qty.......: 10
PCB Layers....:  2
PCB Thickness.: 1.6mm
PCB Dimension.: 10cm max * 10cm max OR 10cm max * 15cm max
PCB Color.....: Green
Surface Finish: Hasl

The dimensions of ghpad are 75.54x113.77 mm

$45.9000 for 5
$55.90 for 10
$87 for 20

colored pcb add $10 regardless of qty
enig finish +$16 regardless of qty

here is the bad news:


Registered Air Parcel

Weight: 0.97kg. Delivery Time: 0-30 days    $18.46
United States Postal Service

Shipping to US. Weight 0.97kg    $22.95
Fedex

Shipping to US. Weight 0.97kg    $36.75
United Parcel Service (1 pkg x 0.970kg total)

UPS Worldwide Express Saver    $44.31
Store Pickup

Choose this if you want to pick up your orders at our office. Tel: +86 755 36534826    $0.50
DHL

Shipping to US. Weight 0.97kg    $39.89
EMS

Weight: 0.97kg    $33.16


That's for 10, so it comes out to $73 for 10. Shipping cost doubles with the 20 qty its around $117 total for 20.

Is there someone out there that wants 5 pcbs? Maybe we could split it the order for 10.

I'm placing an order tomorrow, let me know by then.

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #867 on: Tue, 17 December 2013, 14:30:16 »
The dimensions of ghpad are 75.54x113.77 mm
Yup, this is the dimension for the complete PCB, one 6x4 keypad.
If you want a normal 5x4 keypad you could ignore the bottom part of the PCB - it would make the PCB fit into the 10cm x 10cm price range.

I'm interested in 4 or 5 of these 5x4 keypads - I can change the kicad files here in order to get this smaller PCB.
For the 6x4 PCB it will depend on the price ...
« Last Edit: Tue, 17 December 2013, 14:31:52 by agodinhost »
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
GH60 |GH60-Alps |GH60-BT |GHPad/GHPad Alps |GH60-Case |Alps TKL |EL Wire |OS Controller, Round 2 |My Custom Keyboard |WTT/WTB

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #868 on: Tue, 17 December 2013, 14:35:19 »
While I'm pretty sure everything is fine with the layout, don't you want to perhaps wait until one of them has been tested?  If not, that's fine, more testers is good.  Also, I updated the github yesterday with some minor tweaks to the silkscreen.

The only reason I had some made is I wanted to put the onus on myself, and not the rest of the community in case something was flawed with the design (ie: diode pads not sized properly).  Also I got to choose the colors :D



Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #869 on: Tue, 17 December 2013, 14:42:31 »
Hmm yes, actually I'd be more interested in a 5x4 than a 6x4

I didn't want to make a big production out of it. Of course with untested stuff like this there is a risk  :p

Though I saw that you are in brazil, it may not be worth it to ship between USA (where I am) and brazil

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #870 on: Tue, 17 December 2013, 14:47:48 »
Hmm yes, actually I'd be more interested in a 5x4 than a 6x4

I didn't want to make a big production out of it. Of course with untested stuff like this there is a risk  :p

Though I saw that you are in brazil, it may not be worth it to ship between USA (where I am) and brazil
For small packages it is okay.

JDCarpe wants 5 5x4 PCBs too.
I want 5 - you could ship my PCBs to him - it would be easier.

anyone else guys?
 :)
« Last Edit: Tue, 17 December 2013, 14:51:08 by agodinhost »
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
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Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #871 on: Tue, 17 December 2013, 14:52:50 »
If agodinhost wants to modify the KiCad files and make a 5x4 GHPad, I would be willing to proxy the shipping, since I'm already shipping some stuff to him in Brazil. Plus I would also get a few 5x4 GHPads, just for the sake of having them. :)
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #872 on: Tue, 17 December 2013, 14:56:32 »
Oh ok, that sounds good.

I can do an order of 20, anyone else want some?

Let me know w/ the file. If I remember correctly its just cutting off that marked part from the bottom.

Offline whiskytango

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #873 on: Tue, 17 December 2013, 15:05:05 »
Oh ok, that sounds good.

I can do an order of 20, anyone else want some?

Let me know w/ the file. If I remember correctly its just cutting off that marked part from the bottom.

I want two of the 5x4 if you're doing them.
I stay busy with work and family these days, but I'm still around, lurking.

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #874 on: Tue, 17 December 2013, 15:09:43 »
You know, I could just re-order 20 of them from PCBwing at $5.50/pcb + shipping...

I'm just not trying to get into the middle of a group buy....

Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #875 on: Tue, 17 December 2013, 15:11:57 »
seeedstudio is 2.29/pcb for 20

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #876 on: Tue, 17 December 2013, 15:14:47 »
If I remember correctly its just cutting off that marked part from the bottom.
Yup - that's it.
I can do it if you want - you do just need to pay attention into the delete operation cause sometimes it deletes more than you want (tracks for instance).

give me one or two hours (kinda in the middle of something for my wife here) ...
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
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Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #877 on: Tue, 17 December 2013, 15:19:04 »
You know, I could just re-order 20 of them from PCBwing at $5.50/pcb + shipping...

I'm just not trying to get into the middle of a group buy....

The original one you made for me, or the current design with only 5 rows?
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #878 on: Tue, 17 December 2013, 15:20:37 »
Oh that's right,  is the $5.50 for the 5 or 6 row?

I think $5.50/pcb is in line with what seeedstudio charges for the 6row layout.

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #879 on: Tue, 17 December 2013, 15:23:31 »
I'm just not trying to get into the middle of a group buy....
lol
you are the father of this keypad Regack, so you were in the middle anyway ...
 :D
Building one square I2C keyboard with those 1200 switches (thanks JDCarpe)
GH60 |GH60-Alps |GH60-BT |GHPad/GHPad Alps |GH60-Case |Alps TKL |EL Wire |OS Controller, Round 2 |My Custom Keyboard |WTT/WTB

Offline Sifo

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #880 on: Tue, 17 December 2013, 15:26:18 »
Cool I'm getting a keypad!
(Forever) Illustrious.


Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #881 on: Tue, 17 December 2013, 15:26:51 »
Oh that's right,  is the $5.50 for the 5 or 6 row?

I think $5.50/pcb is in line with what seeedstudio charges for the 6row layout.

Yeah, that was for the 6-row with black soldermask and chemical gold... I didn't have a 4x5 made there... but anyway, try this one out:

https://github.com/regack/4x6/tree/4x5

I removed the bottom row stuff and extra footprints that were not necessary, as well as the pin references to row 6 on the MCP23018 and such...

This is from the 0.12.1 revision, so it has the silkscreen fixes for the diodes and R6 & R7.

Also... my apologies to agodinhost for preempting you...
« Last Edit: Tue, 17 December 2013, 15:29:21 by regack »

Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #882 on: Tue, 17 December 2013, 15:37:30 »
the master father delivers!  :thumb:

btw, I'm not opposed to doing the order from pcbwing either

did you want a few? I can close the order w/ whiskeytango as the last and we can send 3 pcbs to regack. I can cover the cost of those extra pcbs/shipping.

Unless we can find a bunch of people  for 30 qty, I'll leave the count as:

jdcarpe-5
agodinhost-5
whiskeytango-2
me-5

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #883 on: Tue, 17 December 2013, 15:41:04 »
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Offline damorgue

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #884 on: Tue, 17 December 2013, 15:46:03 »
Could someone summarize the progress and where it is at currently? Any upcoming prototype runs?

Offline agodinhost

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #885 on: Tue, 17 December 2013, 15:51:15 »
GOSH, you are way quick man!
Thank you!!! :thumb:

Could someone summarize the progress and where it is at currently? Any upcoming prototype runs?
We are testing Regack work.
Be aware that small mistakes are still possible and no one is authorized to rape Regack because of it.
 :-X

So, whom is going to get the money?
Via paypal?
Is that you phatdood9?
« Last Edit: Tue, 17 December 2013, 15:56:41 by agodinhost »
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #886 on: Tue, 17 December 2013, 15:56:25 »
Oh that's right,  is the $5.50 for the 5 or 6 row?

I think $5.50/pcb is in line with what seeedstudio charges for the 6row layout.

Yeah, that was for the 6-row with black soldermask and chemical gold... I didn't have a 4x5 made there... but anyway, try this one out:

https://github.com/regack/4x6/tree/4x5

I removed the bottom row stuff and extra footprints that were not necessary, as well as the pin references to row 6 on the MCP23018 and such...

This is from the 0.12.1 revision, so it has the silkscreen fixes for the diodes and R6 & R7.

Also... my apologies to agodinhost for preempting you...

how many did you order? pcbwing calculator shows $9.83ea with 75.54x94.97mm dimensions (chemical gold rohs, black solder mask)

Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #887 on: Tue, 17 December 2013, 15:59:23 »
GOSH, you are way quick man!
Thank you!!! :thumb:

Could someone summarize the progress and where it is at currently? Any upcoming prototype runs?
We are testing Regack work.
Be aware that small mistakes are still possible and no one is authorized to rape Regack because of it.
 :-X

So, whom is going to get the money?
Via paypal?
Is that you phatdood9?

I think paypal would be easiest

The most sensible way would be to send 2 payments, one to me for the pcb and one to jdcarpe for the shipping.

any objections?

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #888 on: Tue, 17 December 2013, 16:03:06 »
Oh that's right,  is the $5.50 for the 5 or 6 row?

I think $5.50/pcb is in line with what seeedstudio charges for the 6row layout.

Yeah, that was for the 6-row with black soldermask and chemical gold... I didn't have a 4x5 made there... but anyway, try this one out:

https://github.com/regack/4x6/tree/4x5

I removed the bottom row stuff and extra footprints that were not necessary, as well as the pin references to row 6 on the MCP23018 and such...

This is from the 0.12.1 revision, so it has the silkscreen fixes for the diodes and R6 & R7.

Also... my apologies to agodinhost for preempting you...

how many did you order? pcbwing calculator shows $9.83ea with 75.54x94.97mm dimensions (chemical gold rohs, black solder mask)

PCBWing will show tooling fees for initial-run and re-orders.  In this case, I went to my last order and started the re-order process to see what the cost would be to get more of the 4x6.  That's where I got my cost from.  The 4x5 would be a whole new order and would suffer from 'initial-run' setup costs.

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #889 on: Tue, 17 December 2013, 16:05:45 »
Could someone summarize the progress and where it is at currently? Any upcoming prototype runs?

I ordered 10 of the 4x6 prototypes and already have them in hand.  At this point, these are all spoken for.

phatdood9 is arranging for another test group but of a slightly modified 4x5 version based on the current 4x6 revision but omits the bottom row entirely (and subsequently costs a little less).


Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #890 on: Tue, 17 December 2013, 16:08:09 »
So with the latest revision, one should be able to connect a ribbon cable between the GH60 and the GHPad, and program the firmware on the GH60 to recognize the new switches on the GHpad, correct?
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Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #891 on: Tue, 17 December 2013, 16:17:29 »
So with the latest revision, one should be able to connect a ribbon cable between the GH60 and the GHPad, and program the firmware on the GH60 to recognize the new switches on the GHpad, correct?

I sure hope so!  I wanted to test that with another little test board I made but I just got these, and I'm not much of a programmer.  With the ribbon cable you're just connecting row/column input (GPIO pins?) on the GH60 to the row/column pins on the keypad.  All you'd need is diodes! (SOD-123 this time, not those tiny little SOD-523 ones :D)


Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #892 on: Tue, 17 December 2013, 16:47:22 »
That's what I suspected, the tooling cost is a bit of a killer, especially when the subsequent orders are likely going to be an improved revision.

I'll order tomorrow, could you send me your mailing address/email address jdcarpe? So I can ship it to you and fwd you the emails.

I think it will come out to around $3.3/pcb

You guys want ENIG or lead free PCB?

Offline jdcarpe

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #893 on: Tue, 17 December 2013, 16:50:21 »
No lead-free. We need the Pb. :)

Sent you a PM with my address info.
« Last Edit: Tue, 17 December 2013, 16:54:33 by jdcarpe »
KMAC :: LZ-GH :: WASD CODE :: WASD v2 :: GH60 :: Alps64 :: JD45 :: IBM Model M :: IBM 4704 "Pingmaster"

http://jd40.info :: http://jd45.info


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Offline whiskytango

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #894 on: Tue, 17 December 2013, 16:57:27 »
Oh that's right,  is the $5.50 for the 5 or 6 row?

I think $5.50/pcb is in line with what seeedstudio charges for the 6row layout.

Yeah, that was for the 6-row with black soldermask and chemical gold... I didn't have a 4x5 made there... but anyway, try this one out:

https://github.com/regack/4x6/tree/4x5

I removed the bottom row stuff and extra footprints that were not necessary, as well as the pin references to row 6 on the MCP23018 and such...

This is from the 0.12.1 revision, so it has the silkscreen fixes for the diodes and R6 & R7.

Also... my apologies to agodinhost for preempting you...

how many did you order? pcbwing calculator shows $9.83ea with 75.54x94.97mm dimensions (chemical gold rohs, black solder mask)

PCBWing will show tooling fees for initial-run and re-orders.  In this case, I went to my last order and started the re-order process to see what the cost would be to get more of the 4x6.  That's where I got my cost from.  The 4x5 would be a whole new order and would suffer from 'initial-run' setup costs.

I am down for whatever, but is there a reason we can't just order more of the 4x6 PCBs and break off the bottom if we want 4x5? It seems it would be cheaper. Either way, I'm in for any option that gets me a 4x5
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Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #895 on: Tue, 17 December 2013, 17:03:53 »
Yes we could do that too, we would get the chemical gold finish too.

The price would still be around $40 more though, even with the reorder discount (for 20 qty)

Also looks like regack cleaned up a few unnecessary parts w/ his 4x5 design.

Offline damorgue

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #896 on: Tue, 17 December 2013, 17:05:22 »
I am down for whatever, but is there a reason we can't just order more of the 4x6 PCBs and break off the bottom if we want 4x5? It seems it would be cheaper. Either way, I'm in for any option that gets me a 4x5

I like the idea, mainly because I want a 4x6. I suppose the next run is the final run, or are there any major revisions planned large enough to warrant a new prototype run?

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #897 on: Tue, 17 December 2013, 17:22:44 »
I am down for whatever, but is there a reason we can't just order more of the 4x6 PCBs and break off the bottom if we want 4x5? It seems it would be cheaper. Either way, I'm in for any option that gets me a 4x5



I like the idea, mainly because I want a 4x6. I suppose the next run is the final run, or are there any major revisions planned large enough to warrant a new prototype run?


I don't think so, but I know agodinhost had some ideas for improving the i2c expansion capability... that might be for a version down the road though.  Really I just wanted to get these tested then turn it loose for people to decide what to do...

The only thing I've really changed was placement of silkscreen text.  The 'R7' silkscreen was... under the module... and was hard to read.  I'm missing the USB port, or I'd have basic functionality tested already  :-[

I also hope to get info to metalliqaz so he can put maybe add it to his firmware programmer
« Last Edit: Tue, 17 December 2013, 17:25:28 by regack »

Offline phatdood9

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #898 on: Wed, 18 December 2013, 13:40:24 »
Going to place the order in a couple hrs, anyone have a pcb color that that don't like?

Offline regack

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Re: GHpad FTW (10-Key Pad for GH60)
« Reply #899 on: Wed, 18 December 2013, 13:55:35 »
Going to place the order in a couple hrs, anyone have a pcb color that that don't like?

Anything but green? :D