1

I bought a 3,2" touch screen which was advertised (German website) for Raspbery and ODroid-C1:

Wird einfach auf den ODROID-C1 oder Raspberry Pi Einplatinencomputer aufgesteckt!

Translated:

Is simply plugged onto your ODROID-C1 or Raspberry Pi single board computer.

After it was shipped, the manual says

Dieses TFT-Display darf nur in Verbindung mit dem ODROID-C1 verwendet werden.

Translated:

This TFT display must only be used with the ODROID-C1.

So now I wonder whether it's safe to connect it to the Raspberry Pi 2, since I don't own a ODROID-C1.

Link to hardkernel, which seems to be the original producer. Depending on the pin numbering system, I can only figure out that the 3.3V and 5.0V power supply could match.

  • 1
    YOLO. But on a more serious note: you probably got a different product since the one on the site specifically states that it's for ODROID or RasPi but then you got a screen that's for ODROID only. – Gene Dela Rosa Apr 16 '16 at 14:40
  • I quickly checked and the SPI interface seems to be pin compatible between the two which is a prerequisite. But even if you still need to have an appropriate driver on the RaspberryPi. To safe yourself some trouble I would recommend buying a display which is supported by notro: github.com/notro/fbtft/wiki/LCD-Modules – user1217949 Apr 17 '16 at 9:27
0

I have tried: Yes, it's safe to connect the 3,2" touch screen.

While it didn't display anything (completely white display), I could still attach an HDMI monitor and operate with it. It sometimes displayed the "battery warning" icon in the top right corner, but never failed on a 2A power supply.

To get something displayed, I mainly followed the instructions of the Raspberry Forum. Here's the sequence that made it work for me:

  1. wget http://www.waveshare.com/w/upload/9/9d/LCD-show-151020.tar.gz
  2. tar xvf LCD-show-151020.tar.gz
  3. cd LCD-show/
  4. sudo ./LCD32-show (which will reboot)
  5. cd LCD-show/
  6. sudo dpkg -i xinput-calibrator_0.7.5-1_armhf.deb
  7. sudo modprobe fbtft_device name=waveshare32b rotate=270 gpios=dc:22,reset:27

At this time, I saw the output on the ODroid 3,2" display. After an additional startx I also saw the Raspbian desktop.

Unfortunately I was not able to calibrate the touchscreen and I was not able to apply the changes permanently. After a reboot, the display was white again.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.