HATs and other add-ons • Re: 3.5 inch Waveshare touchscreen is black

I am posting an exact record of what I did for anyone who needs it in the future; the credit goes to @aBUGSworstnightmare.

This is for the Waveshare 3.5inch Capacitive Touch LCD SKU https://www.waveshare.com/3.5inch-Capac ... ch-LCD.htm

• 1) Wire up the screen to the Pi following this guide:
  
  
  2) Download the zipped-up .bin file here: https://forums.raspberrypi.com/viewtopi ... 96.bin.zip
  
  3) Open a terminal window
  
  4) Unzip the file by entering:

  Code:

  unzip wavesku30896.bin.zip

  5) Copy the unzipped file to /lib/firmware/ by entering:

  Code:

  sudo cp wavesku30896.bin /lib/firmware

  6) Open the config.txt file
  On Bookworm:

  Code:

  sudo nano /boot/firmware/config.txt

  on Bullseye:

  Code:

  sudo nano /boot/config.txt

  7) Paste in the following under [all]:

  Code:

  # waveshare 3.5in 320x480pixels - SKU 30896dtoverlay=mipi-dbi-spi,speed=48000000dtparam=compatible=wavesku30896\0panel-mipi-dbi-spidtparam=width=320,height=480,width-mm=49,height-mm=79dtparam=reset-gpio=27,dc-gpio=25,backlight-gpio=18

  8) Reboot by entering:

  Code:

  sudo reboot

Statistics: Posted by KovyJakes — Wed Apr 16, 2025 10:39 pm

---