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Questions tagged [touchscreen]

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

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Raspberry pi 2 wont boot without touchscreen

I know, this sounds like similar responses. I have tried editing config.txt however it appears that some code in it is still running after i boot with the raspberry pi with a touch screen. I did also ...
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17 views

Waveshare 3.5 (A) display speed 41000000 not work

i had a real waveshare 3.5 lcd. and, i try to edit config.txt. i'm try to edited speed=41000000,fps=60 and speed=36000000,fps=60. refresh rate is worked so smoothly! but display's color is terrible. i ...
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13 views

Simple network manager application for 5inch display

I want to install on my Raspbian Lite (I already installed basic xinit packages and I'm able to run a graphical jar app without problem) a simple network configuration with GUI. My goal is to connect ...
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1answer
25 views

Change back from LCD driver

I've successfully installed this 3.5" LCD display, which uses this LCD driver: https://github.com/goodtft/LCD-show. My problem is, that when I use VNC to remotely access the PI, (I assume) because of ...
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28 views

Pi Official Touchscreen Dim on Timeout (Screensaver like)

I've done a lot of Googling but not found anything. What I would like to do is dim the backlighting after a timeout period of no GUI activity and restore the backlight brightness on GUI activity. ...
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1answer
30 views

where to buy the raspberry pi 7" touchscreen display board separately?

My raspberry pi 7" touchscreen display board black plastic connector (BROWN CONNECTION ABOVE RPI DISPLAY LETTERING) that holds the ribbon to the raspberry pi broke and I am looking for a replacement ...
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25 views

Composite not Working on Raspberry Pi 3 B+

Raspberry Pi 3B+ with Noobs installation Then Emulation Station There is an official Rasberry pi touch screen attached by the ribon cable and 4 jumper wires to the Gpio. I used different power and ...
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11 views

Is there anyway to use raspberry pi to control an air compressor driving a hydraulic press?

I have a 20 ton shop press that I would like to automate to have certain run settings at a certain psi for a specific amount of time. For instance if I wanted to press something at 140 psi for 3 ...
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1answer
38 views

Can the GPIO pins be used to compromise a raspberry pi?

For example, would a touchscreen device that uses the below pins on a Raspberry Pi 3 be able to do something more than say, send touch and keyboard events? Anything hackish/nefarious? (edit: use case: ...
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46 views

Touch screen functionality not working on raspberry pi zero w and 5 inch lcd screen

I have a raspberry pi zero w and a 5 inch lcd touch screen with hdmi. I have the raspberry pi connected to the screen by HDMI. I am running the latest raspian OS on it. It boots up and starts just ...
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26 views

RPI File Browser for Touchscreen

I'm building a Webinterface for the RPi with a 7" Touchscreen. I'm running Raspbian Lite with xorg and chromium-browser. If I now wanna upload a file to the webinterface (by a html input), then there ...
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25 views

Disabling multitouch?

I have Pi version 3 (Raspbian installed) and touchscreen Waveshare WS170120. I have a problem with it. When I touch the screen with two (or more) fingers simultaneously, touchscreen freezes and touch ...
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40 views

Inverting Touch input permanently

I am trying to replace an XUbuntu mchine with a raspberry pi set up as a Kiosk. I already had an ELO touch screen, whcih worked fine. I have read through all the posts on inverting the display for ...
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22 views

my 3.5" touch screen inverts the input of the touch

when ever i touch the top right of the screen and move to the bottom right the mouse moves from the top left to the top right i've already tried "display_rotate=2" and "lcd_rotate=2" but nothing ...
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1answer
177 views

Stream Deck Using PI 2

I have a RPi2 1gb. I've recently got a touch screen for it and have decided that I actually should use it for what it was intended for. Programming! So my adventure starts here. I want to make a ...
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1answer
62 views

Setting official touchscreen display boot-time brightness

I've got an official display, and having found other questions about setting the brightness I know I can change the brightness, and make a script that will run on boot, but that means the screen will ...
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0answers
27 views

RPi3 Touchscreen white fade reboot

I have an RPi3 with the 7in touchscreen attached. Sometimes when I boot up, it runs through the startup procedure, then at some point (it varies, has happened right near the beginning after the ...
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1answer
94 views

Official touchscreen questions

I'm a French web developer so forgive my Englush I'm currently working on yet another in-car embedded Raspberry Pi project. I plan to build the software as a Chromium kiosk web app, served by a Node....
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0answers
18 views

Is it possible to use half the screen as touch screen and the other half as a waveform display pane?

I am using waveshare 3.5 inch RPi LCD (A). Is it possible to use it as just a display for waveforms and half the screen of it responsive to the touch?
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34 views

Physically make screen smaller (overscan?) While maintaining touch screen calibration

I am having trouble finding a way to make the 'active' screen size smaller. I have a 7" display and I have a 6" gap in which I want the display to be seen through (the screen will sit behind this ...
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1answer
79 views

Change GPIO pins for official Raspberry Pi 7" touchscreen

I need to use different GPIO pins with the Raspberry Pi official 7" touchscreen. I'm already using pins 3, 4, 5 and 6 with a hat, and it would be a pain to change them. I've looked through several ...
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1answer
186 views

Touchscreen GUI with control loop

I'd like to create a fullscreen-GUI on my Pi's 7"-touchscreen and I think this would be pretty easy to accomplish if I just wanna have some GUI that let's me click some buttons to control some GPIO-...
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1answer
73 views

Is it okay to power the Pi Touchscreen by plugging into the Pi?

I have the official raspberry Pi 7 inch touch screen, and I have mounted to it a Pi 2. Lately I have been using it and I have been plugging the power into the Pi itself. I however recently remember ...
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0answers
25 views

Java AWT full screen window / touch screen: mouse events “fall through”

I'm having a Scala (Java) app open a javax.swing.JFrame and put it to full screen; the physical display is a 3.5" touch screen on the GPIO. I just noticed that when I click on parts of my UI where ...
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2answers
50 views

PiScreen 3.5" TFT only shows white

I am attempting to set up a Zynthian Live Sampler (https://www.zynthian.org) which uses the Ozzmaker PiScreen 3.5" (http://ozzmaker.com/product/piscreen-3-5-tft-with-touch-for-the-raspberry-pi/) as it'...
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0answers
37 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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0answers
42 views

Powering a 7 inch touchscreen for the Raspberry Pi 3

I ordered a 7 inch hdmi touchscreen for the Raspberry Pi 3 on ebay and started developing my Python openCV application. So my setup is a Raspberry Pi 3 + webcam + 7 inch touchscreen powered via usb ...
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0answers
70 views

How to fix adafruit 7" display resolution problem on PI3?

I recently bought adafruit 7" display to be used with my PI3 to see if it will work. Well, it sort of works. The screen comes up everything is displayed but the resolution is screwed up. I have tried ...
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0answers
117 views

Raspberry Pi goes black on launching kivy application

After installing kivy on my raspberry pi model 3 b+ i tried to launch a simple kivy application. When launched the application just goes black instead of showing the buttons. import kivy from kivy....
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1answer
346 views

Raspbian Stretch Lite with Touchscreen - Chromium “Couldn't initialize SDL: No available video device”

I have a Raspberry Pi 3 B+, with the RPi 7-inch touchscreen hooked up. I installed Raspbian Stretch Lite on a 16GB SD card. I have booted the Raspberry Pi, changed my password, connected to Wifi, and ...
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0answers
811 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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0answers
90 views

How could I draw a persistent overlay on the Official Touch Screen?

I have the Official 7" Screen connected to a Pi 3B V1.2. I want to create an overlay to be displayed on the screen at all times (regardless of whether I'm in a desktop environment like X, a CLI, etc.)....
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0answers
34 views

Large title bar buttons?

On the latest release of Raspbian, there's a new feature that allows you to change the UI settings to make it suitable for Large, Medium and Small displays. The setting for Large displays (among other ...
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2answers
357 views

Upside down screen on Pi with Kumantech 3.5"

On a pi B with raspbian-stretch, I have tried every tip I could find to get the touch screen to rotate 180 degrees: commands in config.txt, new drivers, using ./LCD-show 180, and more. Nothing works ...
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0answers
116 views

Problem with touchscreen Waveshare

I purchased a 5inch touchscreen WaveShark. Screen model I connected it to the board Raspberry Pi3 model B (OS Android Things) and it immediately displayed the contents of the program. After that, I ...
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1answer
116 views

My Raspberry Pi 3 B won't work with the touchscreen

So i've got a KeDei 3.5" touch screen Version 6.3 and i installed an image of Kali with the driver that's given of KeDei's website (http://kedei.net/raspberry/raspberry.html) but it hasn't been ...
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0answers
96 views

Pi3 + Waveshare touchscreen not work on start

i have a waveshare 7inch revices with rev.2.1. On the start i cant use the touchscreen. The touchscreen works only with the following steps: after the start unplug and plug the usb. What can i do ?
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259 views

Touchscreen programing

I have to do a project for school, the project involves raspberry Pi and its touchscreen. I'm new to Pi but I'm not new to programming by any means. My question is if i want to use the touchscreen to ...
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1answer
173 views

Waveshare 4.3inch HDMI LCD shows blank white screen

I have a Raspberry Pi 3 model B running the latest version of Rasbian Stretch. Yesterday I've received my Waveshare 4,3 inch display. First thing I did was build it in my project, due to save height ...
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1answer
64 views

What to look for in a touchscreen for RPi?

I would like to build a project on RPi with touchscreen, and wonder what to look for beyond the official (rather expensive) ones. How can I tell whether a screen will work or not? What kind of ...
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0answers
441 views

Auto-detect HDMI on boot (touchscreen attached)

I'm using the 7" official Raspberry Pi touchscreen, attached with a ribbon, on an RPi 3 Raspbian Jesse. This screen does not support displaying on both it and HDMI output simultaneously, so I can only ...
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1answer
153 views

PiTFT 3,5" Inverted X & Y

So for the last 3 weeks I have been trying to get this touchscreen(3,5" Resistive) to work properly, but I cannot, for the life of me, figure it out! I have made a very simple SDL 1.2 program that ...
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0answers
90 views

Raspberry 3,5 inch LCD with reverse colors

I just want you check if you got the same error, or if maybe, the screen arrived broken. I'm using a kedei 3.5 inch SPI TFTLCD screen on a rapsberry pi 3. It works, but all colors seems to be wrong ...
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1answer
261 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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1answer
195 views

1020x1080 Touchscreen driver

I want to install the LCD-show driver to my raspberry Pi. But the touchscreen I have to use has a 1920 x 1080 resolution. I havent found a way to get the driver for this resolution. Is there somekind ...
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0answers
200 views

Can't get drivers to work on RPi3 with Elo Touchsystems ET1919L monitor

Trying to get an RPi3 (latest raspbian stretch) to work with an Elo Touchsystems ET1919L monitor. Tried all the arm32 drivers from the Elo site and the touch won't work. It shows up in lsusb as "ID ...
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0answers
40 views

Stuck at colorful boot screen AFTER installing software to run an LCD 3.5" GPIO screen on my pi3

the charger I am using is for an Amazon Alexa and it outputs 5.25V; there is enough power to power the pi, multiple peripherals, ethernet, HDMI, and the screen. BUT- when I install the software to ...
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1answer
1k views

Raspberry pi 3 b+ and 7" touchscreen over poe

I have an issue, i want to power my pi and 7" touchscreen over poe but the raspberry pi poe hat supplies only 2.5 amp. 7" touchscreen requires 2.5 amp and rpi 3 b+ also requires 2.5 amp so i am in ...
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1answer
450 views

2018 Touchscreen Calibration

This issue has been mentioned before, but with Debian stretch it has changed. I have a 15inch touchscreen that will not calibrate with the usual x-input that debain jesse had. I have tried to run the ...
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0answers
646 views

On-screen keyboard with app integration

I'm aware of matchbox-keyboard, but I'm looking for a more Android or iOS kind of keyboard solution. When selecting a text input, of type alpha or numeric, I would like the appropriate keyboard, text ...