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DWIN_T5UIC1_LCD

Python class for the Ender 3 V2 LCD runing klipper3d with OctoPrint / Moonraker

https://www.klipper3d.org

https://octoprint.org/

https://github.com/arksine/moonraker

Setup:

By default, the primary UART is assigned to the Linux console. If you wish to use the primary UART for other purposes, you must reconfigure Raspberry Pi OS. This can be done by using raspi-config:

  • Start raspi-config: sudo raspi-config.
  • Select option 3 - Interface Options.
  • Select option P6 - Serial Port.
  • At the prompt Would you like a login shell to be accessible over serial? answer 'No'
  • At the prompt Would you like the serial port hardware to be enabled? answer 'Yes'
  • Exit raspi-config and reboot the Pi for changes to take effect.

For full instructions on how to use Device Tree overlays see this page.

In brief, add a line to the /boot/config.txt file to apply a Device Tree overlay.

dtoverlay=disable-bt

By default, the Klipper's API socket is not enabled. In order to use the API server, the file /etc/default/klipper need to be updated form

KLIPPY_ARGS="/home/pi/klipper/klippy/klippy.py /home/pi/printer.cfg -l /tmp/klippy.log"

To:

KLIPPY_ARGS="/home/pi/klipper/klippy/klippy.py /home/pi/printer.cfg -a /tmp/klippy_uds -l /tmp/klippy.log"

Library requirements

Thanks to wolfstlkr

sudo apt-get install python3-pip python3-gpiozero python3-serial git

sudo pip3 install multitimer

git clone https://github.com/odwdinc/DWIN_T5UIC1_LCD.git

Wire the display

  • Display <-> Raspberry Pi GPIO BCM
  • Rx = GPIO14 (Tx)
  • Tx = GPIO15 (Rx)
  • Ent = GPIO13
  • A = GPIO19
  • B = GPIO26
  • Vcc = 2 (5v)
  • Gnd = 6 (GND)

Run The Code

Enter the downloaded DWIN_T5UIC1_LCD folder. Make new file run.py and add

#!/usr/bin/env python3
from dwinlcd import DWIN_LCD

encoder_Pins = (26, 19)
button_Pin = 13
LCD_COM_Port = '/dev/ttyAMA0'
API_Key = 'XXXXXX'

DWINLCD = DWIN_LCD(
	LCD_COM_Port,
	encoder_Pins,
	button_Pin,
	API_Key
)

Run with python3 ./run.py

Run at boot:

Note: Delay of 30s after boot to allow webservices to settal.

path of `run.py` is expected to be `/home/pi/DWIN_T5UIC1_LCD/run.py`

sudo chmod +x run.py

sudo chmod +x simpleLCD.service

sudo mv simpleLCD.service /lib/systemd/system/simpleLCD.service

sudo chmod 644 /lib/systemd/system/simpleLCD.service

sudo systemctl daemon-reload

sudo systemctl enable simpleLCD.service

sudo reboot

Status:

Working:

Print Menu:

* List / Print jobs from OctoPrint / Moonraker
* Auto swiching from to Print Menu on job start / end.
* Display Print time, Progress, Temps, and Job name.
* Pause / Resume / Cancle Job
* Tune Menu: Print speed & Temps

Perpare Menu:

* Move / Jog toolhead
* Disable stepper
* Auto Home
* Z offset (PROBE_CALIBRATE)
* Preheat
* cooldown

Info Menu

* Shows printer info.

Notworking:

* Save / Loding Preheat setting, hardcode on start can be changed in menu but will not retane on restart.
* The Control: Motion Menu

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Python class for the Ender 3 V2 LCD

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