Ender 3 Pro - RRF 2.04 - can't get 12864 LCD to work
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I've found a discrepancy between the known setup and what I have here - the guide shows the setup for a board labeled "128647W-10" while mine is labeled "ENH12864Z-1"
They are similar in that they both have the three big black dots on the back, but are actually very different in the arrangement of pretty much all the other components
Y'all reckon this is the issue ? My LCD is some weird variant that just isn't going to work with the proven pin connections ?
but that doesn't explain why the other LCD, the RepRap one, doesn't work either
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It shouldn't make any difference; but what happens if you leave out the F2000000 parameter on the M918 command in config.g? Or use a lower value such as F1000000 ?
When using the RepRapDiscount display, you do not need to reverse the connectors, assuming it is a faithful clone of the original design.
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image url)
removed the G4 line above M918 and deleted the F parameter.The RepRap LCD looks legit to me - labeled "RepRap Discount Smart Controller - www.bigtree-tech"
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@ccluck
I had similar problems with a "RepRapDiscount Full Graphic Smart Controller" only displaying blocks.
Can you also remove the E parameter for testing.
That code worked with RRF2:
; Display
M918 P1 ; 128x64 Reprap Display -
@ccluck, the LCD in that picture is the wrong sort. It's a 20 x 4 text LCD, not a 128 x 64 graphic LCD.
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Thanks David - I guess that's a non-starter then. I truly didn't know that. I think I'll order a 128X64 RepRap LCD off Amazon for $12USD. Worth the investment just to see if these two particular Maestros really will drive a display.
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So you weren't using the display that came with the Ender?
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@Phaedrux , yes, I was making every attempt to get the OEM Ender display running, without success. I only just threw the other one into the mix to see if it might work. Wasn't aware that it is an entirely different sort of device. I just pulled it out of a box of Tevo Tarantula that was given to me, read the label that says RepRap...... so I tried it.
To reiterate, my stock Ender 3 Pro LCD doesn't work with ANY of the suggestions proffered thus far. I've meticulously followed your guide, been back over it several times, tried everything suggested in this thread - all to no avail.
I'll buy a RepRap display off Amazon to see what's up - I'll be doubly sure it is a 12864 device. If that doesn't work, then OK, its an ineffable mystery and I'll just continue using an old phone when I need to stand right in front of the machine for babystepping.
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@ccluck how do the pins on the maestro LCD connector look?
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they look OK to me, the connectors are snug when they go on, not loose or wiggly -
@ccluck 
)This is the back side of the LCD board I'm trying to connect - not same as the one in the Duet_Ender3 guide, but it works fine with a Creality 1.14 board and the upgraded Creality "silent" 1.15 board connected to their single ten-pin (EXP1) connectors ( they don't have EXP2 or EXP3 ) Like I said earlier, I have two Maestros here, each easily accessible, so I've tried both with no luck. I must be missing some fundamental key to the puzzle, like it needs some other key besides the M918 enablement.
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I'm wondering if the pinout on that LCD version is just different.
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@Phaedrux , me too, but further investigations must wait. GF has persuaded me to take her out dancing at the biker bar out in the woods .... it'll be a nice break from the print room.
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For all interested parties, I have news - the $12 RepRap Discount Full Graphic Smart Controller arrived today, and instantly worked as it should, no set up or monkey business required to get it going. Yahoo !
So there it is - there is at least one Ender OEM LCD variant out there that will not readily play with the Maestro.
Thanks to all who contributed advice and comments - I appreciate your time and attention to this little issue.
image url) -
I am glad you got it working.
I changed the main menu files to suit my use.
Top left icon should be Duet3D's icon, next along on top row should be an image of a nozzle, next should be a bed icon last should be a fan icon.
Rem: is remaining time and bottom row to the right of CTRL should be % complete.Should look like this.
I was using firmware 2.04 and now RRF3 and works fine with my Maestro.
Maybe a connection issue....Regards,
Paul -
@PaulHew , thanks for your support - it is working as I had hoped. I was babystepping with it a few minutes ago. Very handy.
