1.1 KiB
1.1 KiB
Vail MIDI Protocol
When it boots, the Vail adapter sends left and right Control keyboard key up and down events. It also shows up as a MIDI device.
The Vail web site sends MIDI control commands to enable MIDI keyer mode, tells the keyer what sideband pitch to generate, and can set the keyer mode.
Controller 0 - MIDI Mode
b0 00 ff will enable MIDI mode and disable Keyboard mode
b0 00 00 will enable Keyboard mode and disable MIDI mode
Controller 1 - dit length
b0 00 xx will set the dit duration to xx times 2 milliseconds
Controller 2 - sidetone note
b0 00 xx will play note xx as the sidetone note
Program Change
c0 xx will change the keyer mode to xx.
Keyer Modes
- 0: passthrough (sends C# and D for dit and dah)
- 1: cootie / straight key
- 2: bug
- 3: electric bug
- 4: single dot
- 5: ultimatic
- 6: plain iambic
- 7: iambic a
- 8: iambic b
- 9: keyahead
Any other mode will set to passthrough.
Notes (key down / key up)
90 00 xx will begin playing note xx
80 00 xx will end playing note xx
These work just like a regular MIDI synthesizer.