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Alternative Controller for HHKB
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===============================
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Feature
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-------
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- Mouse Keys
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- NKRO on USB(PJRC Tennsy only)
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- Keymap Layers
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Customize Keymap
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----------------
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see keymap.c.
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Build
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=====
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PJRC Teensy
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-----------
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0. Edit matrix.c.
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adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts)
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1. Define macros in config_pjrc.h.(Optional)
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VENDOR_ID, PRODUCT_ID and string descriptor.
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IS_COMMAND
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2. Edit Makefile for MCU setting and build options.
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MCU, F_CPU
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MOUSEKEY_ENABLE, EXTRAKEY_ENABLE, NKRO_ENABLE
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3. Build hex file.
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$ make -f Makefile.pjrc
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4. Program MCU.
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$ make -f Makefile.pjrc program
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V-USB
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-----
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0. Edit matrix.c and usbconfig.h.
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adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts)
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define macros for V-USB in usbconfig.h.
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1. Define macros in config_vusb.h.(Optional)
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IS_COMMAND
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2. Edit Makefile.vusb for MCU setting and build options.
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MCU, F_CPU
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MOUSEKEY_ENABLE, EXTRAKEY_ENABLE
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3. Build hex file.
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$ make -f Makefile.vusb
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4. Program MCU.
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$ make -f Makefile.vusb program
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Using a bootloader to program for convenience is recommended.
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Once program this V-USB bootloader at first, you can program MCU without
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extra programmer. You should have reset switch to start up as bootloader
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mode in this case.
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USBaspLoader:
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http://www.obdev.at/products/vusb/usbasploader.html
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iWRAP
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-----
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0. Edit matrix.c and usbconfig.h.
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adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts)
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define macros for V-USB in usbconfig.h.
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1. Define macros in config_iwrap.h.(Optional)
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IS_COMMAND
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2. Edit Makefile.iwrap for MCU setting and build options.
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MCU, F_CPU
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MOUSEKEY_ENABLE, EXTRAKEY_ENABLE
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3. Build hex file.
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$ make -f Makefile.iwrap
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4. Program MCU.
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$ make -f Makefile.iwrap program
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Hardware
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========
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PJRC Teensy
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-----------
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+---------------+
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| Teensy++ |
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| | HHKB
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| | ~~~~
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| PB0-2|------->ROW(6-8)
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| PB3-5|------->COL(9-11)
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| PB6|------->ENABLE(12)
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| PE6|<-------KEY(4)
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| PE7|------->PREV(5)
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+---------------+
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V-USB
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-----
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+---+ +---------------+
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USB GND | | ATmega168 |
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~~~ C3 | |
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5V <-------+--------+---|Vcc,AVCC | HHKB
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R1 | | ~~~~
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D- <----+--+-----R2-----|INT1 PB2-4|------->ROW(6-8)
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D+ <----|---+----R3-----|INT0 PC0-2|------->COL(9-11)
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Z1 Z2 | PC3|------->ENABLE(12)
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GND<----+---+-----------|GND PB0|<-------KEY(4)
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| PB1|------->PREV(5)
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GND+-C2--+--|XTAL1 RXD|------->Debug Console
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X1 | TXD|<-------Debug Console
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GND+-C3--+--|XTAL2 RST|---SW--+GND
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+---------------+
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R1: 1.5K Ohm
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R2,R3: 68 Ohm
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Z1,Z2: Zener 3.6V
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C1,C2: 22pF
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C3: 0.1uF
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X1: Crystal 20MHz(16MHz/12MHz)
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SW: Push Switch(Optional for bootloader)
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iWRAP
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-----
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+---------------+ WT12
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5V | ATmega168 | 5V/3.3V~~~~
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+-----+---|Vcc,AVCC PC4|---/--->iWRAP(RxD)
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USB | C3 | PC5|<--/----iWRAP(TxD)
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~~~ | + | |
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5V <--BATT + GND | | HHKB
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R1 | | ~~~~
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D- <----+-----+--R2-----|INT1 PB2-4|------->ROW(6-8)
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D+ <----|---+----R3-----|INT0 PC0-2|------->COL(9-11)
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Z1 Z2 | PC3|------->ENABLE(12)
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GND<----+---+-----------|GND PB0|<-------KEY(4)
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| PB1|------->PREV(5)
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GND+-C2--+--|XTAL1 RXD|------->Debug Console
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X1 | TXD|<-------Debug Console
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GND+-C3--+--|XTAL2 RST|---SW--+GND
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+---------------+
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R1: 1.5K Ohm
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R2,R3: 68 Ohm
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Z1,Z2: Zener 3.6V
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C1,C2: 22pF
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C3: 0.1uF
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X1: Crystal 12MHz
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SW: Push Switch(Optional)
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BATT: Li-Po Battery, Battery Charger and Voltage Regulator(5V and 3.3V).
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EOF
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