ARDUINO MIDI keyboard 66 keys with velocity sensitivity (passive ground method)

Hello!

I just found this site and decided to try. I’m trying to find a Arduino MIDI specialist.

I would need help for writing Arduino MIDI keyboard controller code. I’m not able to do this myself, it’s too complicated for me. Is there anyone who could solve my problem?

Here’s the project:

I’m trying to figure out how I could do a MIDI keyboard with velocity sensitivity with Arduino. I understand the idea behind the velocity sensitivity keyboard, but I’m not able to code it myself.

I know already how to make a ACTIVE MATRIX based velocity sensitivity BUT I would like to know how to do a PASSIVE one which doesn’t use rows and columns, only common ground method (just like in the 61 midi keyboard code).

I’m sending you a ready code I found for MIDI 61 keyboard without velocity sensitivity. And I am sending you also another code with a 25-keys MIDI keyboard which has velocity sensitivity. I just don’t know how to take the velocity sensitivity from the 25-key version to the 61 keyboard code. I think it’s possible to do somehow.

So, the whole idea is to get rid of the active matrix in the code and use common ground method. I would like to use common ground method without any matrix scanning.

Would someone be able to make changes to the Arduino code so that my keyboard would work with passibe method instead of active matrix?

I would need codes for the 61 and 88-keyboard versions.

Please, contact me if you know how to do this and are able to help me!

Thank you very much!
, Pete.