Duet2 ethernet and 12864 display using ST7567

fs9

Hello!

This is my first post on the forum, so if I apologize in advance for any gaffes I eventually make.

I've been following this topic and others related to ST7567-based LCDs for a while, and a few days ago, I was discussing with a friend about the mess that wiring it for the Duet2 can quickly become, so I made a simple adapter board and wanted to share it, in case anyone has an interest. I have tested the wiring the board is based on, but not yet the board itself (I'll make it on a protoboard before placing an order), but it does look pretty straightforward. Board sits directly over Duet2, and EXP_1/EXP_2 cables go between it and the LCD.

https://github.com/fs9/Duet-Mini12864

I would very much appreciate feedback and suggestions, should anybody have any.

dc42

@leckietech you need to run RRF 3.3 to be able to drive the WS2811 LEDs.

izeman

@dc42 I installed 3.3 and a ST7567 https://wiki.fysetc.com/Generic_12864_Panel/ to my duet2 wifi. Did the wiring loom and all seems to work fine. Communication between display and printer works, SD card access works etc.
Only thing not working is the LED.
I set the display up with M918 P2.
And then I should be able to address the Neopixel LEDs with M150. Only command accepted is M150 X2, but it doesnt drive any LED of the display.
And M150 X1 gives Error: M150: Unsupported LED strip type
Any idea what to do to make the backlight of this display work with the Duet Wifi?

izeman

Could someone using the Fysetc 2.1 and running a DUET please post his config here? I had it running for month now, but somehow my config got erased, and I can't get the display's LEDs working again.

I need this part, with the CORRECT PIN to setup... io5.out is not the correct one, and even after looking into manual ans stuff I can't figure it out. That's very confusing to me.

M918 P2 E-4 F2000000           ; Fysetc 12864mini
M950 E1 C"io5.out" T1 U3       ; create a RGB Neopixel LED strip with 3 LEDs on the Duet 3 Mini 5+ 12864_EXP1 header
M150 E1 R0 U0 B255 P255 S1 F1  ; display led blue
M150 E1 R255 U0 B0 P255 S1 F1  ; left encoder led red
M150 E1 R0 U255 B0 P255 S1 F0  ; right encoder led green

dc42

@izeman which firmware version are you using?

izeman

@dc42 said in Duet2 ethernet and 12864 display using ST7567:

@izeman which firmware version are you using?

3.5.0-rc.1

Thanks!

dc42

@izeman try pin name "connlcd.np".

izeman

@dc42 said in Duet2 ethernet and 12864 display using ST7567:

connlcd.np

You're a true GENIUS. Thank you so much! Works perfectly fine now!!

dc42

@izeman I'm no genius, I'm the person who chose the pin names. We'll update the documentation. I'm glad it's working for you.

izeman

@dc42 I know, but still
Tbh pin names are the most confusing part of Duet stuff. I tried converting to Klipper to try it out, but came back to RFF as I couldn't get bltouch working - just couldn't find the correct pins ...
Nethertheless I don't think I need klipper anyway. Ordered an accelerometer now and will try input shaping. Great stuff!!