Hello.
I have a unrelated project to 3d printing.
I want to use the 4x20 RepRapDiscount Smart Controller with an Arduino nano 3.
I like the display size and the fact that there is an encoder that could be useful tool.
Can I interface the display with the nano 3 directly by wiring or some other parts are required?
Thank you.

P.S.
After looking at reprap documentation for the discount smart controller I have learned that it is composed of DMC204LCD , the rotary encoder, sd card interface.
So what I need is to basically connect the DMC204LCD to the arduino nano 3 and go from there. Is it like any other lcd 16x2 or similar? Use 8 data lines but in half mode?
4 data and the other necessary pins.

Edited 1 time(s). Last edit at 03/26/2022 08:11PM by konstantin.neo.

This is how you get it to work on a ramps/mega2560 using a simple test sketch [github.com]

Just have a read of it.

You will need to change the pins for your nano.

Edited 1 time(s). Last edit at 03/27/2022 12:06AM by Dust.

20*4 is wired as 4 bit parallel + 2 control lines 6 io pins

This might also be useful Circuit diagram [reprap.org]

Edited 1 time(s). Last edit at 03/27/2022 01:15AM by Dust.