New controller is released: MIDI DJ CJ CONTROLLER 3.0 USB
http://avargesnano.narod.ru/3/MIDI-DJ-CJ-CONTROLLER-3.0.html
Now i have 10 knobs, 4 buttons & Jogwheel@encoder, LCD 16x2 symbols.
It connects via USB and work like midi-device in Cubase, FL Studio, Virtual DJ, Ableton, ...
There are schematic, sources, PCB, .hex-flash in the article. Use google translator to read article and translate from russian to your language.