I have a RAMPS 1.4 full graphic display (128x64) with a built in SD card reader, jog wheel and buzzer left over from a 3D printer which I no longer own and was hoping to put it to use with another project.
Although I haven't yet done so I imagine the buzzer and jog wheel will be quite simple to get working.
At the moment I am just trying to get the 128x64 LCD to work with an Arduino (Uno or Mega2560) but to little joy, all I've managed to get out of it is the back-light which comes on as soon as power is added to the Arduino.
I've been working with two different pinouts with no luck:
and the information here: http://rigidtalk.com/wiki/index.php?title=LCD_Smart_Controller
The unit I have is mounted on the red PCB, so I am guessing that the latter would be the more useful one for me.
Can anybody offer any advice with wiring and/or a simple sketch to get me started?