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- https://www.thingiverse.com/thing:3030160
- It can be a huge hassle to get TouchUI & your touchscreen running. I spend almost 2 days figuring out, getting information from different surces and ran from issue to issue. These are the steps I made to get mine working (Windows 10 64bit). Follow them closely and yours should work as well!
- This tutorial works with my hardware. If you are using a different Pi / Touchscreen combo this may not work.
- Touchscreen im using: Elegoo Display 3.5" https://www.amazon.de/gp/product/B01JRUH0CY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 (Identifies within the pi with "ADS7846 Touchscreen")
- Raspberry Pi 3 Model B: https://www.amazon.de/gp/product/B01CD5VC92/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- 40mm USB Fan: https://www.amazon.de/gp/product/B074YGZHQG/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
- Heatsinks: https://www.amazon.de/gp/product/B07C5NM8XR/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
- Power-Adapter: https://www.amazon.de/gp/product/B01E75SB2C/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- MicroSD: https://www.amazon.de/gp/product/B06XFSZGCC/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- PiCam V2.1: https://www.amazon.de/gp/product/B01ER2SKFS/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- PiCam Cable: https://www.amazon.de/gp/product/B075PH4MWG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- Software / Files you need:
- Install Etcher (Software to flash SD Cards) https://etcher.io/
- Install Win32DiskImager (Software to backup) https://sourceforge.net/projects/win32diskimager/
- Install PuTTY (SSH Software to access your Pi) https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html
- Install Notepad++ (Software to edit textfiles, do NOT use Windows Notepad) https://notepad-plus-plus.org/download/
- Download latest Octopi image https://octoprint.org/download/
- Lets get started:
- Insert your MicroSD Card (I recommend at least 8GB Class 10 or U1), Run Etcher, Select Octopi Image, Select your MicroSD Card and hit Flash. Wait untill it's done.
- Unplug your MicroSD Card and replug it again. Windows will show an error and wants to format your drive. DO NOT DO THIS.
- Open your MicroSD Card (Drive is called "boot"). Open the file "octopi-wpa-supplicant.txt" (if you want to enable WiFi), uncomment (remove #) infront of the 4 lines that fits your WiFi and input your SSID and password. Save and Exit.
- Optional (if you are using the PiCam V2): Open the file "octopi.txt" with Notepad++, scroll all the way down and uncomment and edit this: camera_raspi_options="-x 800 -y 600 -fps 15 -quality 8" This config works great for me trough wifi. Save and Exit.
- Eject and remove the MicroSD from your computer and plug into your raspberry. You can already attach the touchscreen.
- After your Pi is booted up access your pi trough a browser with the Pi's IP (find the ip in your router) or trough http://octopi.local
- Do the initial configuration and set up Octoprint according to your liking. Go into Settings > Octoprint > Plugin Manager > Get More... and install TouchUI
- Shutdown your raspberry (do not unplug to turn off, use the web interface, click on the power button in the upper right corner and select "Shutdown System". Wait a few seconds (15 or so) and unplug your pi from power.
- Plug your pi back in, wait till its fully booted (check webinterface)
- Open PuTTY, type octopi.local or Pi's IP into the box Host Name, Use Port 22 (SSH) and hit Open (bottom right)
- A black window should pop up, login with username "pi", hit enter, type password "raspberry". You should now see the raspberrys console (pi@octopi:~ $)
- Pay close attention now, follow each step exactly. When your pi wants you to confirm something, hit Y to accept.
- Type the following, line after line. Always wait until the action is complete before you proceed to the next line. Some steps take some time to finish:
- sudo apt-mark hold raspberrypi-bootloader
- sudo apt-get update
- sudo apt-get upgrade
- git clone https://github.com/goodtft/LCD-show.git
- chmod -R 755 LCD-show
- cd LCD-show/
- sudo ./LCD35-show
- Your pi should restart automatically, your display should be active now showing console. Major step done! :)
- Lets rotate the screen to fit our mount (if you do not need screen rotation skip this step)
- Close your old putty window, start putty again, login to your pi.
- Type the following:
- sudo nano /boot/config.txt
- scroll all the way down (using arrow keys) and change dtoverlay=tft35a to dtoverlay=tft35a:rotate=270
- Press CTRL+O > ENTER > CTRL+X to save & exit (CTRL = STRG in german)
- Type the following:
- sudo reboot
- Your Pi will restart and the display should have the correct orientation
- Close old Putty window, open new one, login to your pi. Type the following to install TouchUI. Note: You can select and copy those lines, paste them into Putty with a simple right click:
- sudo apt-get install --no-install-recommends xinit xinput xserver-xorg xserver-xorg-video-fbdev x11-xserver-utils matchbox unclutter chromium-browser
- sudo nano /usr/share/X11/xorg.conf.d/99-fbdev.conf
- Copy & paste the following:
- Section "Device"
- Identifier "touchscreen"
- Driver "fbdev"
- Option "fbdev" "/dev/fb1"
- EndSection
- Press CTRL+O > Enter > CTRL+X
- Type the following into the console:
- sudo sed -i 's/allowed_users=console/allowed_users=anybody/' /etc/X11/Xwrapper.config
- If it fails, simply ignore it. It will still work.
- git clone https://github.com/BillyBlaze/OctoPrint-TouchUI-autostart.git ~/TouchUI-autostart/
- sudo cp ~/TouchUI-autostart/touchui.init /etc/init.d/touchui
- sudo chmod +x /etc/init.d/touchui
- sudo cp ~/TouchUI-autostart/touchui.default /etc/default/touchui
- sudo update-rc.d touchui defaults
- sudo reboot
- Your Pi should restart, your touchscreen will come to life and TouchUI will load. Your Touchscreen wont work properly yet. The axes will be inverted. Lets fix that: (NOTE: If TouchUI doesn't load (loads long time, red text) read below!!)
- Close old putty window, open putty, login to your pi.
- Type the following:
- sudo nano /etc/X11/xorg.conf.d/99-calibration.conf
- Delete everything in there and insert the following:
- Section "InputClass"
- Identifier "calibration"
- MatchProduct "ADS7846 Touchscreen"
- Option "MinX" "3914"
- Option "MaxX" "62713"
- Option "MinY" "3021"
- Option "MaxY" "61593"
- Option "SwapXY" "0" # unless it was already set to 1
- Option "InvertX" "0" # unless it was already set
- Option "InvertY" "0" # unless it was already set
- Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
- EndSection
- Press CTRL+O > Enter > CTRL+X
- sudo reboot
- Your pi will restart, touch UI should load and the touchscreen should work! Congrats, almost there! ;)
- Optional: Lets enable the Pi's Camera
- Close old Putty window, open new one, login to your pi
- sudo raspi-config
- Select Interfacing Options
- Select Camera
- Select Yes
- Select Finish and reboot
- Your Pi's camera should be enabled now.
- After your Pi is booted up, open your browser, go to Octoprint (http://octopi.local), open your settings and select "Webcam & Timelapse".
- Change Stream-URL to http://YOUR-PI's-IP-ADRESS:8080/?action=stream
- Your almost done!!
- Shut down your Pi trough the Octoprint interface. Power down and unplug the SD card. Insert it into your windows machine and open up the programm Win32DiskImager. Insert a path and a file name into the empty line. For example C:\backup\octopi_configured.img and hit the "Read" button. When something breaks you can always use Etcher to reflash your OS to your SD card.
- Please make sure to always shut down your pi! Unplugging it from power directly without shutdown can break your installation.
- Trough the Octoprint Webinterface: https://i.imgur.com/l59gbgB.png
- Or trough PuTTY:
- sudo shutdown now
- OR
- sudo reboot
- Done! I hope this was helpful to you. <3
- NOTE: There is currently a bug in Octoprint V1.3.9 that prevents TouchUI from loading. If you have this problem downgrade your Octoprint installation back to 1.3.8 until the problem is solved. How to do that:
- Open Putty, Login to your pi
- Type the following:
- ~/oprint/bin/pip install https://github.com/foosel/OctoPrint/archive/1.3.8.zip
- sudo reboot
- TouchUI should load correctly now.
- Have fun with your new setup guys. If you need any help I'll try my best to help you out.
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