Questions tagged [touchscreen]

Use this tag for questions about touchscreen compatibility, and how to use compatible touchscreens with the Raspberry Pi.

159 questions with no upvoted or accepted answers
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87 views

Relay for controlling backlight of touchscreen not reacting after a while

I connected my rpi3 to a 10" touchscreen. I connected the backlight of the touchscreen to a relay which I'm controlling via the GPIO pins. This is working fine for the first couple of minutes. But ...
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3k views

Slow Refresh Rate on WaveShare 3.5" LCD (B) on RPi 3 B+

I've flashed StickyFingers-Kali-Pi-armhf-180607 to my Raspberry Pi 3 B+ with Waveshare 3.5" LCD (B). I update and configure the unit for my specific screen using the guide's instructions, entering the ...
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1answer
854 views

Raspberry Pi 3 Model B- 3M Touch Systems

I connected yesterday a Raspberry Pi 3 Model B at a 3M touch Systems touchscreen. For installing I followed this tutorial that I found here: Inverted GPIO Touchscreen (Using 99-calibration.conf) What ...
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75 views

Some parts of Official 7" Touschscreen no longer registering touch

My Touschscreen has been working fine for over a year, but since a couple of days ago some parts of the screen stopped registering touch. It started with a region in the top left, a day later the ...
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158 views

22inch touchscreen slow mouse response

I have 6 identical set-ups with a raspberry pi's (PI 3), and each of them has a 22 inch Dell touchscreen (HDMI / USB). The raspberry pi's are running latest stable Jessie with a kiosk browser (...
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1answer
2k views

Kivy: config.ini [Input] section: My touchscreen settings don't apply

I am trying to use an Elo Touch monitor to work with kivy. At first i calibrated the monitor with xCalibration wich worked fine: Calibrating EVDEV driver for "EloTouchSystems,Inc Elo TouchSystems ...
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62 views

The Python Games that come with NOOBS extend off screen

Most (all?) Python games that come with NOOBS (Pentamino, GemGem etc) extend off the bottom of my Raspberry Pi 7-inch touch screen. I can successfully play some of them by right clicking the TLH ...
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328 views

Cursor doesn't respond to touch in pyqt5 program

I am very new to both programming in python and touch interface stuff on the Pi. I have run into an issue I can't seem to resolve by googling: I have a Sainsmart 7" touch screen that works perfectly ...
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65 views

Adafruit 7-in touchscreen startup troubles

I recently bought a 7-inch touchscreen, from Adafruit, for my RPi3. I downloaded the latest disk image for Raspbian, did all the updates per the startup instructions: sudo apt-get update sudo apt-...
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166 views

Can I enable a HDMI auto detect to substitute a GPIO screen

Ok so I am running raspbian jessie pixel on a pi 3 b and I have installed adafruits 3.5' piTFT and it uses the GPIO pins and I would like to know if I can cause it to auto detect HDMI on boot and oly ...
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1answer
859 views

PiTFT Touchscreen calibration is ignored by Pi Zero W

I'm using an Adafruit 2.4" Resistive PiTFT on my shiny new Raspberry Pi Zero W and I've finally managed to get the display configured but the touchscreen is proving a problem... (Please note that ...
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279 views

Incorrect Pygame touch events from Raspi Display without startx

I have a Clock / Weather / MPD client PyGame application that runs on a Raspi3 with an official Raspi Touchscreen. The app works fine when executed under startx. When started from the command line, ...
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401 views

Console is bigger than my Raspberry Pi screen resolution

I have bought a Raspberry Pi 7" touch screen, and it seems to work fine. When the boot process is running, the normal Linux boot messages appear on the screen - but after the screen is filled, it ...
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701 views

Trouble with touchscreen on a kiosk

I have a Raspberry Pi set up as a web kiosk that displays a web app that I wrote for parents to check their children in and out of a preschool. The browser is chromium in kiosk mode. The web app is ...
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0answers
5k views

Can the official 7" touch display be used at the same time as an hdmi monitor?

I am making a project where I want a monitor to host a webpage and the touchscreen will control an app I made that dynamically changes things on the webpage. Is the pi (pi3, mod. b) capable of ...
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267 views

Interface capacitive digitizer via i2c

Hi Guys I need help interfacing a capacitive digitizer with the rpi2. The digitizer has a goodix gt9137 touch controller and the drivers are in the Linux kernel.After I hook it up what do I do?Will it ...
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154 views

Sound troubles with the 3.5" spotpear/waveshare touchscreen

I purchased a 3.5" waveshare/spotpear touchscreen for my Pi. Long story made short, I cobbled together a few different ways of getting it to work consistently. I've described the process here. I hit ...
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1answer
2k views

Issues with Kivy on Raspberry Pi 3 with 3.5 in Touchscreen

I followed every guide I could find on installing Kivy to Raspberry Pi. My touchscreen works totally fine. Trying to launch various Kivy demos will result in what seems to be a partial launch, but ...
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0answers
754 views

Touchscreen - configuration issue?

Good day! I have a rpi B+ with 3,2" display (fb_ili9340) and XPT2046 touch controller. Previously 3.18.10, now 4.0.7 kernel. Display works perfectly as with waveshare32b module, but no touchscreen ...
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1answer
1k views

how to get touchscreen coordinates

I'm using waveshare 5 inch HDMI touchscreen on my raspberry pi , I need a python code to determine the X,Y coordinates of touched point. Do you have any idea ?
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65 views

RPi not booting into system

I just followed a couple of steps to try to configure a eGalax Touch Screen monitor, and always, after installing the three programs listed in the picture, the RPi gets stuck in a black screen with a ...
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2answers
745 views

Raspberry pi model b waveshare spotpear 3.2 inch lcd touchscreen is not working

I'm working on a Raspberry Pi portable system and I'm using a waveshare spotpear 3.2 inch TFT LCD touch screen; I have followed the instructions on that page. I get the screen to work but not the ...
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1answer
6k views

Touchscreen with Qt QML eglfs

The goal is to run QtQuick2 Qt5 applications on the RPI 2B with USB+HDMI resistive touchscreen (7" 800x480 AR1100 http://www.adafruit.com/products/2407). Current state Visual part is fine. Touch ...
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1answer
284 views

Simultaneous using of Touchscreean LCD and MCP3008 on Raspberry Pi 3

I want to use a touchscreen LCD (3.5" TFT) and a MPC3008 ADC at the same time to monitor data fast and continuously in my project. And I know the data interface of each three parts (LCD, touch, and ...
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1answer
615 views

Transfer driver in Raspberry Pi 2 Model B with Screen Kedai 3.5

I have a Raspberry Pi 2 Model B and I bought an 3.5" LCD screen from China called Kedai 3.5. To be able to use it, the Chinese company provides a link for downloading a Raspbian image with the screen ...
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27 views

Raspberry Pi 4 Touchscreen Not turning on

So, I recently decided to upgrade an old project from a raspberry 3 to a 4. This raspberry Pi is powered over Ethernet and needs a touchscreen attached to it. After I connected the PoE hat and the ...
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33 views

Driver corrupts OS

I've been working on a PI project, I am using Waveshare 7" touchscreen, now I need to download driver to enable touchscreen, I tried downloading it from their website: https://www.waveshare.com/...
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24 views

How do I turn touchscreen on and off while pi is running?

I have this touchscreen: http://www.lcdwiki.com/3.5inch_RPi_Display How do I turn the touchscreen on and off when I want? All the guides I read were about turning an HDMI screen off (I can already do ...
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32 views

Connect small but zoom-able touch-sensitive display to Pi 4 HDMI output for setup and focus?

I have a RPi 4 + HQ PiCamera connected to a computer several meters away via ethernet. I can see live feed from the camera on the ethernet-connected PC in several ways: Configure as a webcam by ...
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0answers
21 views

Raspberry pi waveshare7 inch touchscreem lineage os

I'm recently using raspberry pi with lineage installed on it . When i connect to tv as monitor every thing is perfect. But when I'm using wave_Share 7 inch touchscreen. Connection to internet failed. ...
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20 views

Problems with Raspberry and touchscreen

I'm working on a Raspberry Pi project and I need to use touchcreen, I got 7" Waveshare touchscreen, I plugged it in my Raspberry Pi (via GPIO pins) and touch didn't work... I went on their ...
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1answer
154 views

How to control raspberry pi 4 GPIO pins by running android application in the rpi and in mobile?

I am trying to build a project based on IoT. My goal is to trigger relays connected to GPIO pins in rpi4 by using an android application running in rpi4 itself which can be accessed with an official ...
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11 views

Openbox chromium browser Companion emulator

Do you have a solution to select a window part of a web page and take that on full screen with OpenBox chromium browser? You can look on photos why.
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26 views

Kiosk-mode with CLI

I am writing a command-line application using NCurses and I have a Raspberry Pi with a Kano "Make Your Own Tablet" kit which is essentially a touchscreen with some accessories attached. I ...
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23 views

Official Raspberry Pi Touchscreen display - Touch not working on the right of the display

I recently changed from HDMI display to official PI display. Although I was using this initially with keyboard and mouse, later I see the need for using touch. What I found was the touch was not ...
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25 views

How to full screen the app window in Rpi 7in TFT

I'm currently working on an app for rpi using kivy that will be displayed in a 7in TFT. I used the 7in TFT resolution as window size (800,480) I am developing the code in windows pc since coding it in ...
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32 views

Howto setup a touchscreen as pure display?

I have a Raspberry 3B that I am using with VNC. Now I want to use the 3.5inch RPi Display as a pure output device to display graphics, not for displaying the desktop on it, just using it as a ...
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17 views

Raspberry pi 2B is stuck on rainbow screen and the 7" official screen is white

My Raspberry pi 2B works perfectly fine when it is connected to my TV via HDMI. But when I connect it to the touchscreen at the same time, the touchscreen is just a white screen and on the HDMI, it is ...
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163 views

How can I rotate my screen with OctoDash installed?

I want to rotate the touchscreen on my Pi4 with Octoprint and OctoDash installed on to. I've opend the file /boot/config.txt and added the line "display_rotate=2", but nothing happend (yes I ...
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66 views

Touchscreen on Zero W without X?

I'm designing a Raspberry Pi Zero W project with a touchscreen. I want to use this screen. Would there be a way to use the touchscreen on that without having X? I'll be using /dex/fbX for the display.
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107 views

Touch screen double click area

I got rpi connected to two touch displays. My problem is if I try double click on touch I almost never touch the exactly the same spot two times (sometimes with nail) so the display registers it as ...
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0answers
27 views

Twin touchscreens on Pi 3/4

I'm looking at a project where I will need to drive two separate displays from a Pi, both of which are touchscreen - specifically GT911 type on a separate I2C connection. This will almost certainly be ...
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0answers
109 views

config.txt conditional filter for 7" touch display?

I just bought a brand new Pi4 and official 7" touchscreen display along with case. I also have another existing Pi with HDMI monitor. I'm running a custom image based on Raspbian Lite plus ...
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1answer
36 views

How to physically turn the a Raspberry Touch display on and off?

I use a Raspberry Pi Touch Display that I connect like shown in the following picture to my Raspberry. The black and red wires are connected to thee GND and 5v pins respectively. Now I want to ...
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17 views

pi4 + Official Touch Screen+ old installation

I have a Pi4B+ and have already installed a 3.5" display from Joy-IT. There I needed to configure manually the boot/config.txt as well as some of the Xorg parameters. Since the display remains ...
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39 views

Raspberry Pi integrating into existing touch screen

I have a car headunit which is touch screen and it has RCA AV input option. I've connected a raspberry pi using a HDMI to RCA convertor. The raspberry pi shows up on the screen. I want to run OpenAuto ...
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1answer
106 views

How to deal with VNC login issues and error

I'm doing a project with a Pi 4B, the official touchscreen and the latest version of Raspberry Pi OS. I would like to connect to the Pi via VNC (RealVNC Viewer on Windows 10) at a higher resolution ...
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1answer
222 views

How does the Kedei 3.5" 800*480 SPI touch screen version 1.1 work with a Pi 4?

I am trying to set up a Kedei Raspberry Pi Display version 1.1 2017/10/10 Type 3590 (horizontal 800*480px) with my Pi 4. Unfortunately, I didn't manage to get the Touch Screen running on SPI. The HDMI ...
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1answer
96 views

Raspberry Pi screensaver/DMPS on/off to trigger shell script on change

I've got a touch screen without backlight control and and turning off the HDMI-output just brings up a "no signal" placeholder on the screen. I've soldered a octocoupler to the power toggle ...
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2answers
177 views

Raspberry pi Touchscreen CSI to HDMI extension

I need to connect my raspberry pi 7 inch touchscreen to my raspberry pi board from a distance of 5m, so I bought some CSI/HDMI extensions that seem to work great with a 1m cable, but when I try o ...