Note: There is a Version 3 of this FMC PCB, please see https://easyeda.com/dotsha747/737fmccdu-v3. I designed a PCB board to be used with the FMC CDU 3D panel by "User0180" on thingiverse (http://www.thingiverse.com/thing:774564). Details on the board can be found here: http://blog.shahada.abubakar.net/post/737-fmc-cdu-pcb-board. The keys have been designed in a 8x9 "matrix" layout. You should be able to read them and also control the LEDs using any microcontroller (Arduino or Raspberry Pi) or I/O Controller that supports matrix inputs (PoKeys, etc) and has enough GPIO pins. If you just want to order a PCB, I have a written a step-by-step guide here: http://blog.shahada.abubakar.net/post/737-fmc-cdu-ordering-the-pcb. For my build notes on integrating this FMC with X-Plane using a Raspberry Pi, see my project blog here: http://blog.shahada.abubakar.net/tag/737fmccdu. This requires just an ethernet connection to X-Plane, as the Raspberry Pi will render the display on the LCD by itself. shahada@abubakar.net