Configuring 12864 LCD on Maestro?

[dc42]

@cata, the Duet WiFi and Ethernet do not have the hardware needed to level shift the LCD signals to 5V and gate the SPI clock for compatibility with common 12864 LCD/encoder combos. That's the main reason why the firmware builds for those boards don't include the 12864 support.

[Cata]

@dc42 a level shifter is too basic to implement, not the same with the firm support. Why not implement in the firm and let the users works with the level shifter?

[Veti]

considering you need an adapter for the ramps to connect an lcd this would not be much different

[3dmntbighker]

Is anyone working on the print from SD card functions? It seems like the most glaring thing that's missing from what ships with a Maestro. I'm fully aware that this a back burner project for the devs.

[Veti]

@3dmntbighker
not sure what you mean.
the files uploaded to the maestro are stored on the sd card. you can select those and print them.
also you can select them from the lcd and print them

[3dmntbighker]

@veti said in Configuring 12864 LCD on Maestro?:

@3dmntbighker
not sure what you mean.
the files uploaded to the maestro are stored on the sd card. you can select those and print them.
also you can select them from the lcd and print them

My Maestro SD card failed a week ago. It arrived with a non-functional set of menu files for the 12864. I don't recall seeing any gcode models on the card out of the box either. I managed to get some portion of the menu to work between firmware updates and doing some editing. DC42 sent me the Crane files he had to get me functional again, but the stuff for navigating the card and printing has not worked for me so far since the card failure. I got a missing file error. I'll look it over again when the printer isn't busy.

edit: For whatever reason it failed yesterday and it works now? Go figure.

[zanone]

Hi,

just received my Maestro board and took the 12684 lcd from my ramps board.
After powering the Maestro the lcd shows just a blue screen
I have setup the "main" file with just the follwing line

text R0 C0 F1 T"My 3D Printer "

I tried upgrading the firmware to the latest , but the lcd is still not working.
Is there anything i i'll have to do to make it work?

[Veti]

M918 P1 ; 128x64 Reprap Display

[russell]

@veti Hi i have M918 P1 E2

[zanone]

Thank you guys , it is working !

I am afraid i will bomb you soon with some more noob questions

[jottesman]

If you haven't found it already, you may find this post of interest.

There are some nice examples (shameless plug: Including my own) of menu files there

[secretman]

tank you guys for the work i got my lcd to work
helse than here i never saw that i needed to add G4 P200 M918 P1 any where
lcd are not necessery but i luv to see what is going on when i pass by

[dc42]

@secretman said in Configuring 12864 LCD on Maestro?:

tank you guys for the work i got my lcd to work
helse than here i never saw that i needed to add G4 P200 M918 P1 any where
lcd are not necessery but i luv to see what is going on when i pass by

What happens if you leave out the G4 P200 bit ?

[secretman]

will try tonight and report

[jameswood]

Hey gang! Just a quick note to thank you all for pointing me in the right direction to get my Creality CR10S screen working with the Maestro.

I managed to pull the plastic connectors off the screen's EXP1 & 2 connectors, sliding them up and off the pins. Then I flipped them and slid them back on. No snipping or filing needed, just a prising thumbnail!

[PuterPro]

@jameswood said in Configuring 12864 LCD on Maestro?:

Just a quick note to thank you all for pointing me in the right direction to get my Creality CR-10S screen working with the Maestro.

And a quick Thank YOU for confirming what I thought I needed to do on my CR-10S Complete with picture. Nice!!

EDIT: Ahhh ... Just looked at my 12864 board and I don't have a EXP3 header at all. When did you get your 10S?
Mine was from Nov 17. Did they add an SD Card to it later or something?

[secretman]

@dc42 im cheking this tonight i got a tuff week hahah

[secretman]

and i will let this here juste like that lolll
http://www.hobbytronics.co.uk/downloads/bmp-lcd

[secretman]

@dc42 it work the same not needed

[pixelpieper]

Hi, First post here, I thought that may help you guys out a bit...

If anyone else wants a simple clean way to create a single ribbon cable which does not involve dupont connectors: You can easily crimp yourself a cable, just get yourself some connectors (like this one, no affiliation with sparkfun). You can either reuse the existing cable or, simpler, get some rainbow ribbon cable which allows you to follow this color scheme:

All connectors as seen from the top, i.e. the order in which the pins are on the connectors

Crimp the cable on the LCD side with all wires, if using a rainbow ribbon align the marker (small triangle) with the brown wire so that the colors match up the illustration. Carefully cut the ribbon after two wires, in the center and finally just before the outer two wires. For the EXP1 connector align the first two and last two wires identical to their position on the LCD side. Take the second three wire pair and align it flipped over with the first wires. The top "bridge" of the connector has some indentations which helps with the proper alignment. You should have three remaining wires, these go into the exp2 connector, again flipped over. make sure to skip the first two positions and you should be fine.

Happy crimping!

--Edit--
Configuration when using this wiring to have the wheel inputs properly working:
M918 P1 E-4