Configuring 12864 LCD on Maestro?



  • will try tonight and report



  • 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!

    0_1548911675017_R15jfGiCR%+kSTKifItNOA.jpg



  • @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?



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



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



  • @dc42 it work the same not needed 🙂



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

    0_1549298878999_9d3d5687-011e-4ba7-a9a8-04a355cf58a0-image.png

    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:
    0_1549298782224_21b3e5c3-3192-406a-9533-9d9a7f28791d-image.png
    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



  • @puterpro said in Configuring 12864 LCD on Maestro?:

    @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?

    Hey @puterpro - The good news is that you don't need EXP3 at all!

    EXP3 is a combination of pins from EXP1 and EXP2, which is used on some Creality printers as a single-cable connection instead of 1 and 2. It's basically redundant, and not needed when connecting the screen to the Duet Maestro. Just connect EXP1 to EXP1 and EXP2 to EXP2 (after flipping them both on the screen board!!) and you'll be golden. This approach uses the original ribbon cables with no chopping.

    My printer is a few months old now, I spose... yours might be newer. I have no SD reader on the screen board.

    (Oh and so sorry for the slow reply!)



  • @jameswood Thanks! I have it hooked up and working with the two cables (reversed the plastic to fix polarity), was just curious if EXP3 was setup for SD card use. Just curiosity, no real need...

    It works fine but the contrast is terrible. Seems there's a pot to adjust it on most boards but if there's one on this one I sure can't find it!! Don't want to desolder the boards to look, but not visible from the edges.

    I'll control it from a touchscreen PC so the 12864 is strictly for redundancy. Thanks for the info!!



  • @pixelpieper Thanks! Nice explanation!!


 

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