This is just a proof of concept for replacing controller of HHKB, not a complete firmware.
My prototype firmware source tree is here:
This is just a proof of concept for replacing controller of HHKB, not a complete firmware.
My prototype firmware source tree is here:
This firmware is a port of my previous project:
HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930)
PJRC:
This firmware is a port of my previous project:
HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930)
PJRC:
Keyswitch PCB connector Teensy++ pins
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Keyswitch PCB connector Teensy++ pins
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6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
7 HC4051 B(bit1) PB1 output
8 HC4051 C(bit2) PB2 output
6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
7 HC4051 B(bit1) PB1 output
8 HC4051 C(bit2) PB2 output
- Space bar locate at ROW:3 COL:7. Key are selected by HC4051(C,B,A) and LS145(C,B,A).
+ Space bar locate at ROW:3 COL:7. A key is selected by HC4051(C,B,A) and LS145(C,B,A).