Velocity-sensitive DIY MIDI keyboard

After some searching through wildly available low price keyboards I have stopped with Behringer UMX610. The major “pro” for the keyboard is keys constuction with fairly long “fall” allowing to build a cascaded setup with them. Mechanic part is good enough for a cheap semi-weighted keyboard. The

… in progress …

Behringer UMX610

Behringer keys only

First prototype

Button and LED to combine

Breaking it

Still prototype