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Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchscree
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Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchscree

by asku on Sat Mar 03, 2018 7:47 pm

I purchased the Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchscreen this past November (if that helps with what version it is as the manual says they have been many changes made over time) and I followed these steps using the default options after setting up my pi the way I wanted:

1. sudo raspi-config --> Advanced options --> (expand filesystem) --> sudo reboot
2. curl -SLs https://apt.adafruit.com/add-pin | sudo bash
3. sudo apt-get install raspberrypi-bootloader adafruit-pitft-helper raspberrypi-kernel
4. sudo adafruit-pitft-helper -t 28r

I purchased a stylus but still nothing I do on the screen is showing a response. Any ideas about what I need to do to fix this?
Attachments
Screen Shot 2018-03-03 at 6.41.44 PM.png
Screen Shot 2018-03-03 at 6.41.44 PM.png (380.27 KiB) Viewed 329 times

asku
 
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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by adafruit_support_carter on Mon Mar 05, 2018 1:00 pm

4. sudo adafruit-pitft-helper -t 28r

Looks like you may have installed the resistive touch version. Change the 'r' to a 'c' at the very end.
https://learn.adafruit.com/adafruit-2-8 ... -the-pitft

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by asku on Mon Mar 05, 2018 2:04 pm

Thanks! That was a quick fix. Now I have an issue where the mouse will only move within a small area near the top left corner of the screen. I can select the menu after start up but nothing else is accessible within the small area. Any thoughts on a missed/incorrect step that could cause this behavior?

asku
 
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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by Eskiimov on Tue Mar 06, 2018 6:39 am

What version OS are you running?

I just tried a fresh image Raspbian Stretch, and update+upgrade, then tried to run the install guide, but i cant for some reason, and i don't know why.

It already fails at
Code: Select all | TOGGLE FULL SIZE
curl -SLs https://apt.adafruit.com/add-pin | sudo bash

I get an error
Code: Select all | TOGGLE FULL SIZE
W: GPG error: http://apt.adafruit.com/raspbian wheezy InRelease: The following signatures were invalid: 58A1FE78D61C7C13E28B92A7C24E6D5378661FA5
W: The repository 'http://apt.adafruit.com/raspbian wheezy InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.


Is because i must use Jessie?

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by adafruit_support_carter on Tue Mar 06, 2018 11:55 am

@Eskiimov Please start a new thread for your issue.

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by adafruit_support_carter on Tue Mar 06, 2018 12:04 pm

Let's see if the screen is responding to touches across the entire area. Try installing these tools:
https://learn.adafruit.com/adafruit-2-8 ... nt-testing
and then with the touchscreen utility running, try touching various locations across the entire screen to make sure it is reporting.

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by asku on Wed Mar 07, 2018 12:04 am

All of that works very well, so I’m not sure why I can’t get the same response on the RPi desktop. Clicking anywhere on the screen, including an opposite corner, clicks the mouse which is locked in a small area near the top left corner.
Attachments
38C37556-1CA2-4F95-94A0-01D76DFE5958.jpeg
38C37556-1CA2-4F95-94A0-01D76DFE5958.jpeg (765.33 KiB) Viewed 258 times

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by adafruit_support_carter on Thu Mar 08, 2018 3:23 pm

Cool. At least we now know the hardware works. So now it's most likely just something in the software somewhere. What OS and version are you starting out with?

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by asku on Thu Mar 08, 2018 4:37 pm

cat /etc/debian_version shows 8.0

cat /etc/os-release gives
PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)"
NAME="Raspbian GNU/Linux"
VERSION_ID="8"
VERSION="8 (jessie)"
ID=raspbian

and
uname -a gives
Linux mypi 4.4.27-v7+ #2 SMP Wed Oct 26 19:09:12 UTC 2016 armv7l GNU/Linux

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Re: Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchs

by adafruit_support_carter on Wed Mar 14, 2018 12:12 pm

Try one of the ready to go images from here:
https://learn.adafruit.com/adafruit-2-8 ... o-go-image

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Please be positive and constructive with your questions and comments.