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2.8" PiTFT touchscreen touch not working on Pi 3 Model B
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2.8" PiTFT touchscreen touch not working on Pi 3 Model B

by Guitarshredda on Mon Jun 12, 2017 12:13 pm

Hi,

A few months ago I bought the Adafruit PiTFT - 320x240 2.8" TFT (https://www.adafruit.com/product/1601).
Today I planned to use it on my Raspberry Pi 3 Model B. I followed the Easy Install guide (https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-touchscreen-display-raspberry-pi/easy-install) by downloading the Jessie-based PiTFT Resistive Image and writing it to an empty 8GB SD card with Win32DiskImager.
If I understand correctly, the TFT should be working now if I start the Pi? But when I boot up the Pi, everything works except for the touch.
I can see everything on the screen, but I can only interact with it if I use a mouse and/or keyboard. When I touch the screen, the lights on the side of the TFT dim as well so I assume that it does register the touching? I'm not sure why the Easy Install isn't working since I used a clean SD card with the recommended image.

Any help would be greatly appreciated.
Thanks in advance!

Guitarshredda
 
Posts: 4
Joined: Mon Jun 12, 2017 11:59 am

Re: 2.8" PiTFT touchscreen touch not working on Pi 3 Model B

by gmbgmb on Tue Jun 13, 2017 2:04 pm


gmbgmb
 
Posts: 17
Joined: Thu Jun 16, 2016 12:06 pm

Re: 2.8" PiTFT touchscreen touch not working on Pi 3 Model B

by Guitarshredda on Wed Jun 14, 2017 4:33 am

gmbgmb wrote:Take a look at viewtopic.php?f=50&t=104964


Thanks for your reply.

I read your topic and tried to use the commands, but it can't find pitft35r-overlay.dtb or pitft35r.dts.
This is probably because I have the 2.8" version and you have the 3.5", but there are also no pitft28 files with that name.

These are the only files I could find in /boot/overlays/ with pitft in their names:
pitft22.dtbo
pitft28-capacitive.dtbo
pitft28c.dtbo
pitft28-resistive.dtbo
pitft35-resistive.dtbo

I tried replacing the pitft35 bits in your commands with the files that I have (pitft28c.dtbo and pitft28-resistive.dtbo), but it just gives me errors.

Guitarshredda
 
Posts: 4
Joined: Mon Jun 12, 2017 11:59 am

Re: 2.8" PiTFT touchscreen touch not working on Pi 3 Model B

by Guitarshredda on Wed Jun 14, 2017 2:10 pm

I bought a new TFT today, turns out my previous one was broken.
The new one works perfectly with the Easy Install image.

Thank you for your time!

Guitarshredda
 
Posts: 4
Joined: Mon Jun 12, 2017 11:59 am

Please be positive and constructive with your questions and comments.