Schema/ circuit diagram needed. (1 reply)

Decided to go the hard way (as usual.....my wife.. ;)). I have had my prusa I3 working on Ramps/Marlin very pleased with it's performance. Now I like to hook up an LCD, rotary encoder and microsd card reader to the machine. I have sourced all parts as shown in the photo attached rather than buying a complete smart controller..

Can I be pointed to a tutorial or some wiring diagram on how to hook up the component to my ramps board.
Also what modification do I need to make in marlin to make it work?

Thanks!!