Extract temp to external display

tecno

Hi guys,
Is there an easy way to get hotend/bed/chamber temperatures on external display like 4x20 text?

dc42

@tecno you will need a microcontroller (e.g. Arduino or RPi Pico) to drive the 4x20 display. If it's network enabled then it can use the rr_model http call to retrieve the temperature from the object model. Alternatively, if your Duet has a spare serial port then you can connect your microcontroller to that port and use the M409 command to retrieve the temperature from the object model.

Depending on which Duet you are using, it may be simpler to add a 12864 graphics display, which some Duets can drive directly, and construct a menu file that displays just the temperature.

tecno

@dc42
Using Mini5 for the printer in question so 12864 might be a easier solution.
My other printers rr_model http call.

dc42

@tecno I suggest you read https://docs.duet3d.com/en/User_manual/Connecting_hardware/Display_12864#duet-3-mini-5-support-for-12864-displays then.

tecno

@dc42
alt text

So this would be OK to use? MKS Mini12864 V3

dc42

@tecno yes that display is suitable.

tecno

@dc42

So I got two displays now to play with, need help to what files to copy to SD card and config lines.

1 Bigtree-tech MINI12864 V.1.0
2. Bigtree-tech RepRapDiscount full graphic smart controller

Advice much appreciated

DIY-O-Sphere

@tecno said in Extract temp to external display:

12864

The second one may have problems with the logic level.
Background info here
https://duet3d.dozuki.com/Wiki/Connecting_an_LCD_control_panel#Section_Connecting_a_12864_mono_graphics_LCD_display_with_rotary_encoder

The second one works for me with a level shifter
https://forum.duet3d.com/topic/23034/12864-display-st7920-on-duet-3-mini5
But I would recommend to use the first one.
Then

M918 P2

must be set in config.g

For the menu files see here:
https://docs.duet3d.com/en/User_manual/Connecting_hardware/Display_12864_menu
I use this version
https://github.com/jadonmmiller/UltimateDuetMenuSystem
There is also a demo video.
You can download the archive here:
https://github.com/jadonmmiller/UltimateDuetMenuSystem/releases/download/V1.10/V1.10_UltimateDuetMenuSystem.zip

Extract the files and upload them via DWC to the display folder.
https://docs.duet3d.com/en/User_manual/Reference/Duet_Web_Control_Manual#main-menu

tecno

@DIY-O-Sphere
This is what I have in config
; General preferences
M575 P1 S0 B57600 ; enable support for PanelDue
M918 P2 ; configure direct-connect display
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"BigDelta"

So how do I create DISPLAY and copy the files there?

DIY-O-Sphere

@tecno
Sorry,
DWC link is outdated.....I haven't found the upload in the current version.....
Pull the SD card and create an folder called "menu"

DIY-O-Sphere

@tecno
In DWC it is here:

tecno

@DIY-O-Sphere

I have menu and creates Display folder and files in it. Still no go

tecno

But does not show in left column ?

DIY-O-Sphere

@tecno
Put all menu files directy into menu folder. You don't need the subfolder display.

tecno

@DIY-O-Sphere

Done and still no go. Is M918 P2 enough to initialize the display?

DIY-O-Sphere

@tecno

https://docs.duet3d.com/User_manual/Reference/Gcodes#m918-configure-direct-connect-display
Maybe check the contrast parameter
That is different to mine.....

tecno

@DIY-O-Sphere

M918 P2 E4 R6

Done no diff, but when I turn the encoder board resets.

tecno

Tried another set of cables = no go

Is it maybe so that there is no firmware, if so what files do I need?

DIY-O-Sphere

@tecno
Maybe swapped wiring?
Check if EXP1 + EXP2 on board and the display are plugged in correctly.

DIY-O-Sphere

@tecno
This is what it looks like in my menu folder