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I want to use this 3.5" adafruit touchscreen, so I followed this tutorial

I ran the following commands from the link :

curl -SLs https://apt.adafruit.com/add | sudo bash
sudo apt-get install raspberrypi-bootloader
sudo apt-get install adafruit-pitft-helper
sudo adafruit-pitft-helper -t 28r

When rebooting I get just a part of the touchscreen that is displaying Raspbian and I want it fullscreen.

I don't know firstly that I need a tutorial for 3.5 inch and not 2.8 inch so what I did I ran this command again with a little change because I'm using 3.5 inch:

sudo adafruit-pitft-helper -t 35r

Another change that I made is to remove the adafruit duplicate in /boot/config.txt, and now after rebooting the only thing I get is a big white screen.

Update: this what I removed

# --- added by adafruit-pitft-helper Fri Aug  7 16:06:03 UTC 2015 ---
[pi1] 
device_tree=bcm2708-rpi-b-plus.dtb 
[pi2]   device_tree=bcm2709-rpi-2-b.dtb [all]
 dtparam=spi=on
 dtparam=i2c1=on
 dtparam=i2c_arm=on
 dtoverlay=pitft28r,rotate=90,speed=32000000,fps=20
# --- end adafruit-pitft-helper Fri Aug  7 16:06:03 UTC 2015 ---

I got 2 section like described with just the difference in one line

 dtoverlay=pitft28r,rotate=90,speed=32000000,fps=20
 dtoverlay=pitft35r,rotate=90,speed=42000000,fps=20

So I removed the first section !!!

I have ran all commands again either for 2.8, or 3.5 but that hasn't changed anything.

Any suggestions will be appreciated :) thanks

5
  • What did you remove out of /boot/config.txt?
    – Wilf
    Aug 8, 2015 at 15:57
  • @Wilf please see the updated post
    – The Beast
    Aug 9, 2015 at 21:06
  • it worked when using it with a new sd card because installing raspberrypi-bootloader and adafruit-pitft-helper makes a lot of changes in the system ...
    – The Beast
    Aug 12, 2015 at 14:22
  • 1
    It may be that the 3.5" requires some of the stuff provided for the 2.8". It may work to use a version of boot config not modifed by adafruit-pitft-helper, and then use the command sudo adafruit-pitft-helper -t 35r and it might set it up as needed (though the thing seems to be for 2.4" & 2.8")- you could use this tutorial (which is for this), but I would suggest contacting them in case the wrong software/firmware/drivers/stuff blows things up.
    – Wilf
    Aug 12, 2015 at 21:52
  • 1
    @Wilf i will contact them because they don't tell what changes are made (because not just the config file how is changed)
    – The Beast
    Aug 12, 2015 at 22:46

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