KBC Poker Matrix

[hasu]

I looked into PCB traces of Poker and hope this helps someone. Though, these info may include inaccuracy in particular pin numbers, 'cause counting fine pitch pins was very difficult for my eyes.


Key switch matrix
These key events were observed with xev command on Xorg/Linux.
PCB says "Fn Keyboard Rev 1.2". Column pins are active low and Row pins are input with pull-up.

Code: [Select]

    R\C|7       8       9       10      15      16      23      24      25      26      27      28      36
    ---+----------------------------------------------------------------------------------------------------------
    3  |z       x       c       v       m       ,       .       (P6)    Fn      (9)     (8)     (?)     RCtrl
    4  |(*1)    (*2)    (*3)    b       n       (X)     App     (P7)    (1)     (PgUp)  (?)     RAlt    (4)
    5  |`       (F1)    (F2)    5       6       =       (F8)    (P4)    (6)     (PgDn)  -       (?)     LCtrl
    6  |1       2       3       4       7       8       9       (Left)  (X)     (X)     0       (*4)    (F5)
    43 |q       w       e       r       u       i       o       (Right) (X)     (5)     p       (SclLk) (Pause)
    44 |Tab     (CapLk) (F3)    t       y       ]       (F7)    LShift  (3)     LWin    [       (?)     (7)
    45 |a       s       d       f       j       k       l       RShift  Rwin    (4)     ;       (?)     (6)
    46 |(Esc)   (,)     (F4)    g       h       (F6)    (X)     (Down)  (2)     (0)     '       LAlt    (5)
    ( ): no real switch                 
    (X): no key event                 
    (?): unclear(media key?)           
    *1: Muhenkan                       
    *2: Henkan-Mode                   
    *3: Hiragana-katakana             
    *4: ScreenShot event?

LED pins and resistors
Esc:                 13(active low), R15(1.5KOhm)
CapsLock:       17(active low), R8(1.5KOhm)
Spc, Arrows:    14(active low), R13(1.5KOhm) for 4 LEDs

DIP switch pins
Turning switch on makes line pull down to ground.
SW1:            47(input with pull-up)
SW2:            30(input with pull-up)
SW3:            1(input with pull-up) 
SW4:            2(input with pull-up)

[WhiteFireDragon]

Hey thanks for this, it really helps. I tried following traces, got lost a few times, and eventually gave up haha. Kudos to you.

[esoomenona]

I was just going to walk out of here... but I'm curious to learn. What is it I'm looking at here, and how can it be helpful? Either way, thanks for going through the effort to provide info such as this.

[SmallFry]

This is how the keyboard is wired up, if you wanted to hook up a new controller, you need to tell the controller which key is which by tell its location. Essentially this is a map of the traces on the PCB.

[esoomenona]

So with this information, someone could theoretically swap the controller for a more programmable one if they had the technical know-how? That is useful!

[SmallFry]

So with this information, someone could theoretically swap the controller for a more programmable one if they had the technical know-how? That is useful!

Exactly.

[desal]

Interesting that the matrix still has keys that aren't physically present on the keyboard.

I was looking at putting a teensy/etc in my poker, but with an imsto aluminium case there's really no room. Now I'm thinking i could rewire the right hand modifiers to be the standard ralt/apps/win/rctrl and then make some sort of ps/2 (if i recall correctly the poker will work via a passive adapter) to usb dongle with an avr to add fn-layers/etc.

[hasu]

Exactly same as what I thought about.
Changing Fn key into RALT with rewiring is reasonable way to tweak keymap of this keyboard.
Remap with software like AHK or something is easier but if you need a hardware remap you may want to look at my converter or Soarer's.