Step 2: Hack a keyboard
For this step, I have modified my keyboard to have a parallel port connector at the back. I recommend you use an old keyboard and place the entire circuit board directly in the guitar (a keyboard's circuit board is usually about 3-4 inches wide by 1-2 inches high), then trash the case and keys.
The trick is track down the traces for 7 keys (14 wires). Though you can use 7 keys of your choice, I recommend you trace 7 keys that are on the same trace (this changes the number of required wires from 14 to 8). Be careful, some cheap keyboards prevent you from pressing certain combinaisons of keys, so 2 or 3 fingers chords might not work.
Controls to be used with the guitar:
Button 1, 2, 3, 4 and 5;
Flipper Up and Down.
I bypassed keys 1, 2, 3, 4, 5, X and Z, by soldering some extra wires to the parallel port connector.
Cut one or two RJ-45 cables (LAN) of about 10 feet long, and solder the wires to the male connector.
The trick is track down the traces for 7 keys (14 wires). Though you can use 7 keys of your choice, I recommend you trace 7 keys that are on the same trace (this changes the number of required wires from 14 to 8). Be careful, some cheap keyboards prevent you from pressing certain combinaisons of keys, so 2 or 3 fingers chords might not work.
Controls to be used with the guitar:
Button 1, 2, 3, 4 and 5;
Flipper Up and Down.
I bypassed keys 1, 2, 3, 4, 5, X and Z, by soldering some extra wires to the parallel port connector.
Cut one or two RJ-45 cables (LAN) of about 10 feet long, and solder the wires to the male connector.
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