i finally have finished the frontplate and the prototype PCB.
Now i have clock+reset inputs on the backside of the module which would really open tons of feature possibillities but unfortunately there is no room for additional jacks or controls. And there is no analog or digital pin left on the Arduino UNO as well. I already replaced multiple led pins with an adressable LED strip which only needs a single pin on the Arduino for using 36 RGB leds.
Anyway - i am glad that i was able the create a perfectly working module that absolutely meets my requirement of having a tiny keyboard in the horizontal row of my rack. And i really like the vibrato feature (or the fact that there are no additional modules needed to create such vibratos).
https://www.modulargrid.net/e/other-unknown-akai-synth-station-25-mod
