AKAI synth station 25 MOD

CV+MIDI keyboard with 25 keys

Arduino UNO based module which features the keyboard unit of an AKAI Synthstation 25 keyboard.

Controls & jacks from left to right

• Octave down with LED indicator
• Octave up with LED indicator
• Vibrato amplitude (potentiometer turned fully left is no vibrato)
• Pitch bend wheel (+/- 1 octave)
• Vibrato frequency wheel (0.2 to 15 Hz)
• Vibrato wave (sine, square, saw, triangle) with LED indicator
• Hold mode toggle with LED indicator
• Pitch output jack (1V/oct)
• Gate output jack with LED indicator
• Gate 2 output jack (triggered by attached pedal or the very right push button) with LED indicator
• Pedal in jack (6.3 mm TS Jack) for sending out on Gate 2 jack
• Push button for sending out on Gate 2 jack

Further a Blazing Baton is included in the LED row. CV-clock, CV-reset and ground are connected via pin headers on the backside of the module because there is no space left on the frontplate.

https://github.com/othmar52/akai-synthstation25-cv-mod