ALPS 60% keyboard PCB
=====================
Primary goal is to support 60% cut AEK(Apple Extended Keyboard) layout and fits into Poker X cmpatible cases.
Revisions
---------
Rev.A 2015/03
Rev.B 2015/05 ISO Enter fix
Rev.C 2015/10 Silk fix: position of K70, K40 and value of resistor:10K -> 1K
Capslock for Cherry Stepped 1.25u
Rev.D 2016/04 Fix Xtal foot print and value of R and C
Rev.E 2016/08 Retouch USB connector footprint and silks
Rev.F 2017/08 Add breakout for unused pins(PC4, PC6, PC7)
Ideas
-----
### LED ###
Backlight won't support. Indicators may be needed for debug.
LED footprint for ALPS Green?
### PCB mount plate: ###
1.6mm PCB will be OK for switch plate.
SMD LED? WS2812? Matias style underside LED?
### TrackPoint ###
ATMega32u2 has no spare pins for TrackPoint three buttons and signals.
TODO
----
Footprint library
Centroid: Diode and capacitor footprint
Pin1 is cathode or capacitor-positive. Pin1 is left for two pin devices like resitor and caps.
Pin1 is on upper left for many pin device like DIP, QFP, SOT...
http://pcbget.ru/Files/Standarts/IPC_7351.pdf
http://www.screamingcircuits.com/Home/HowItWorks
http://i.screamingcircuits.com/docs/understanding-the-centroid-file-r2-2.pdf
Schematic:
reversed pins of LED: create new LED component
Silk fix: DONE 10/09
placement of K70, K40
value of resistor:10K -> 1K
Capslock for Cherry Stepped 1.25u: DONE 10/09
Someone may use Cherry keycaps with stem adapters.
never seen 1.25u stepped Capslock for Alps, normally 1.5u stepped or 1.75u(no stepped) for Alps
ISP pads:
Support for infinity bottom row: 1.5, 1, 1, 1.5: DONE 03/05
Thumb keys, split space bar: near future
Trackpoint support: mount holes and IO pins: Future revision
Bluetooth support: Future revision
USB connector should be shifted to outside by 0.3-0.5mm. 04/05
ISO Enter Support:
ISO Enter key can be used in Rev.B and later revision. The PCB supports three mount positions, 1u, 1.25u and 1.5u. See pictures and figure below. Matias has 1.25u mount, Dell and Alps have 1.5u mount and ISO Enter with 1u mount is not confirmed its existence yet. By the way, Cherry ISO key is also located in middle of 1.25u as Matias does.
keycap from Matias
https://geekhack.org/index.php?topic=69740.msg1760105#msg1760105
http://i.imgur.com/tiPWImU.png
keycap from NEC Rakuraku keyboard(Alps)
https://geekhack.org/index.php?topic=69740.msg1760805#msg1760805
http://i.imgur.com/YKIbKlrl.jpg
keycap from Dell AT102W
https://geekhack.org/index.php?topic=69740.msg1761095#msg1761095
https://geekhack.org/index.php?action=dlattach;topic=69740.0;attach=101849;image
------- -------
| | |
| + | + | 1u
| | | |
------- -------
| | |
| +| | 1.25u
| || |
`---------'
| || |
| +|| | 1.5u
| ||| |
`-----------'
.-----------, 1.5u
| ||| |
| ||| |
` +++ |
| |
| |
`---------' 1.25u
Support Layouts
---------------
Hopefully supports AEK, KBP V60, Omnikey and Dell layouts. AEK ISO layout is not supported due to its anormaly. See below link.
Top right:
\, ` (HHKB style)
Backspace (US)
Right shift:
RShift, Fn (HHKB/Omnikey style)
RShift (US)
Bottom row:
1.5, 1.25, 1.5, space 6.5, 1.5, 1.25, 1.5 (AEK)
1.5, 1, 1.5, space 7, 1.5, 1, 1.5 (101key,103key)
1.25, 1.25, 1.25, space 6.25, 1.25, 1.25, 1.25, 1.25 (V60, 104key, Infinity Standard)
1.5, 1, 1.5, space 6, 1.5, 1, 1, 1.5 (Infinity Hacker)
ISO:
ISO Enter key
ISO LShift
Space bar:
7.0u (AEK, 101key, 103key)
6.375u (V60, 104key, Infinity Standard)
6.5u (Infinity Hacker)
Caps lock:
0.75u(3/8) (Non Stepped)
0.25u(2/8) (Dell/SGI Stepped)
0.125u(1/8) (Cherry Stepped)
(key unit; Top row: Esc[0u], 1[1u], ... 7[7u], ...)
Support Cases
-------------
Poker X case and its compatibles.
Also V60 case are supported hopefully with ballpark figure from pics.
TODO:
Poker3/Pok3r case
https://massdrop-s3.imgix.net/product-images/MD-6955_20150414182153_3159611692efb865.jpg
Pics and Resources
------------------
Apple Extended Keyboard & II:
http://i.imgur.com/mB5pcJy.jpg
AEK ISO is not standard, weirdly shfted to right and not supported.
http://www.finestcomputers.co.uk/FinC/Apple/hardware/ExtendedKeyboard-II/No.3/EK2-1.JPG
Dutch Apple Extended Keyboard with different spacebar stab(2018/05)
https://i.imgur.com/I1DEexi.jpg
https://geekhack.org/index.php?topic=69740.msg2604163#msg2604163
KBParadise V60 with Matias:
https://geekhack.org/index.php?topic=57386.30
http://deskthority.net/review-f45/kbp-v60-matias-click-and-matias-quiet-click-keyboards-t9502.html
PCB: http://i.imgur.com/Mj51unC.jpg
PCB: http://www.hardcoreware.net/wordpress/wp-content/uploads/2014/06/kbp-v60-mini-review-pcb.jpg
Case: http://i.imgur.com/WiYtefc.jpg
On their Facebook they said:
we can screw V60 plate on 4 holes of Poker2/Pure Pro case. Basicly , V60 can fit in Poker 2 case. But V60 has 6 dip switch , Poker 2 only has 4 dip switch. If the back side hole space not enough , the plate touch , not balance.
Poker 2 can not fit in V60 case. Because V60 case is a little smaller than Poker 2.
Northgate Omnikey 101key:
http://cdn.overclock.net/1/15/900x900px-LL-15fea91e_29fpe1c.jpeg
http://www.overclock.net/t/538389/official-mechanical-keyboard-club-because-saving-money-is-boring/12140#post_19494881
http://sandy55.fc2web.com/keyboard/omnikeyultra.html
Dell/SGI 101 Spacebar pos:7u
http://deskthority.net/w/images/9/96/Sgi_granite_203.jpg
Dell 101W(104key with Windows key) Spacebar pos 6.375u
https://geekhack.org/index.php?topic=50993.msg1126977#msg1126977
https://geekhack.org/index.php?action=dlattach;topic=50993.0;attach=45171;image
Matias switch custom keyboard:
https://geekhack.org/index.php?topic=49920.msg1083821#msg1083821
https://geekhack.org/index.php?topic=46060.0
Face U replica PCB(Cherry)
http://imgur.com/a/StdLF
Nerd 60 PCB(Cherry)
https://geekhack.org/index.php?topic=63507.0
https://geekhack.org/index.php?topic=63507.0
Infinity PCB(Alps/Cherry)
https://github.com/kiibohd/pcb
https://d3jqoivu6qpygv.cloudfront.net/img_site/articles/keyboard/massdrop-infinity-circuit.jpg
Duckmini V2 PCB(Alps/Cherry)
https://geekhack.org/index.php?topic=46060.msg1065980#msg1065980
Some case has extra standoffs
https://geekhack.org/index.php?topic=50580
https://geekhack.org/index.php?action=dlattach;topic=50580.0;attach=56770;image
Other Alps SKCM keyboards
http://deskthority.net/wiki/Category:Keyboards_with_Alps_SKCL/SKCM_switches
ISO Enter(Matias: 1.25u center/Alps: 1.5u center)
https://geekhack.org/index.php?topic=69740.msg1760105#msg1760105
https://geekhack.org/index.php?topic=69740.msg1760805#msg1760805
http://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/ra118/users/4/5/3/6/kanami55bros-img591x600-1425099861y5vvwi23067.jpg