Touchscreens for Raspberry Pi

[kerob_labs]

I'm trying as well LCD + touchscreen, with no luck...

https://dl.dropbox.com/u/88787/IMG_20120805_203946.jpg

My USB controller uses CY7C63xx that is a USB to serial, now I think I would need a driver for HID through serial, over USB...

I shall move to another forum: how to compile Raspbian ...

Cheers

[JF002]

Hello!

I'm searching for a LCD touchscreen (7-10") for my Pi.

In this post, you gave a lot of touchscreen references but... do anyone of you have already tried one of these?

I know that the critical part is the touch controller, that will be recognized or not by the kernel, but this information is almost never given on the websites.

Do you know if a list of supported touchscreens (or touchscreen controllers) in Debian ARM exists?

In the Wiki, there is only a reference to a 23" touchscreen monitor but I suppose that a lot more are supported.

[Joshua]

I ran across this on woot today:

http://sellout.woot.com/offers/velocity ... d-tablet-4

$50 for a tablet...wondering if there is a way to use that as a display, either by running it through android or by straight ripping the screen out of it and attaching it directly. Anyone have any insight on that (realizing that its running old android, 2.2).

[sbeckeriv]

I got this screen.
http://www.aliexpress.com/item/7-Inch-T ... 79284.html

They sent me to touchkit for drivers. I emailed someone about touchkit for ARM. They sent me to eGTouch.

http://210.64.17.162/web20/eGalaxTouchD ... Driver.htm

I have recompiled the kernel with hidraw, uinput, and evdev. The pi sees my screen but it complains about a calibration file.

Will post more if I get it to work.

other things I had to do.

Code: Select all

sudo vi /etc/rc.local 

add

Code: Select all

insmod /lib/modules/3.2.27-cutdown+/kernel/drivers/input/misc/uinput.ko

I had to manually copy the files from the setup.sh script for the driver, ini file and other file. The files it copied were blank. Also setup.sh said I had an old copy of X. The script lies and can be ignored for that part.

[doggy]

Is there a way someone can upload recompiled version for people that only know how to use XBMC,and dont know anything about linux? So I can just install that version of raspbmc(or something like that) on my sd card and have my touchscreen working?

[Master_Unicorn]

Lilliput UK makes a monitor that seems to be compatible
with the RPi. I am thinking about ordering one...

http://www.carcomputer.co.uk/index.php? ... en-monitor

Looks like that has moved to here:
http://www.carcomputer.co.uk/index.php? ... &Itemid=28

[Sobiguy]

I too Would like to achieve this As I'm sure so would many others. Truth is I'll bet the first person to show proof and be able to help other by sharing there efforts would achieve a great credit for themselves...

[jfornango]

I've looked at those alibaba screens. THey look sweet, but the $20 - 200 per piece is just two weird for me.

I'm looking at another possible solution that would open up the possibilities.
Buy whatever TFT LCD (or LED, oLED, etc.) you like, then buy the touch panel separately (it's just a resistive film overlay).

I have found quite a few displays under 4 inches that come with composite-in jacks already attached, and quite reasonably priced. I've also found a variety of 4- and 5- wire resistive touch screens, also reasonably prices.

The monitor works out of the box, so no mods/issues there. I have to look at how resistive touch screens work, but I'm thinking a little circuitry to pipe the panel through an ADC and a routine to pipe the values though the OS mouse controls...

I haven't gotten my RPi in, so I can't start proto-typing yet, but as soon as I do, I'll document, document, document.

[jfornango]

One possible solution (god love the people at AdaFruit): http://www.adafruit.com/products/335

They say up front that it is designed for an Arduino, but they wrote an open-source library that should be "easily adaptable." If you don't mind the smaller display area, this would be a good starting spot for developing a package for "official" consideration.

[adafruit]

One possible solution (god love the people at AdaFruit): http://www.adafruit.com/products/335 They say up front that it is designed for an Arduino, but they wrote an open-source library that should be "easily adaptable." If you don't mind the smaller display area, this would be a good starting spot for developing a package for "official" consideration.

thank you

hang tight folks, we are working a lot of products for the pi, including a touchscreen!

-ladyada

[tetravalence]

I have a touchscreen up an working using adafruit's 3.5" tft and a touch panel I found on DigiKey, using a TSC2007 IC from Texas Intruments for the I2C interface with the Pi. I have a thread here (http://www.raspberrypi.org/phpBB3/viewt ... 41&t=17819), so take a look and if it looks like what you want to do, let me know. If enough people are interested, I'll post step-by-step instructions.

[mattk17]

thutchis, have you received your touchscreen monitor yet?

Been looking around for a 7" touchscreen for the raspPi and its weird to see that no one has a solid solution yet.

[ghans]

I think it was almost obvious , when you look how bad the situation on
Linux is , what do you think how bad the situation the Pi has to be ?
We still do not know the limitations of the USB on the board.

tetravalences solution looks good to me. No CPU max-out too.


ghans

[aragats]

Some people mentioned Lilliput monitors here. I've ordered and received one:
http://lilliputweb.net/index.php?Contro ... duct_id=41
(although mine is marked as 619AT).

HDMI video works out of the box, but with trial and errors I've found the optimal resolution 720x480 using the following settings in "config.txt":

Code: Select all

hdmi_group=1
hdmi_mode=3
hdmi_drive=2
hdmi_ignore_edid=0xa5000080

The touchscreen "eGalax Inc. USB TouchController" works with X without special drivers (although the vendor provides ones in binary form, but only for x86/amd64). I'm running Archlinux, tried with both 3.1.9 and 3.2.27 kernels, xorg-server 1.12.4. However, it is not usable without calibration (the axes are swapped too). I've compiled "xinput_calibrator" from:
http://www.freedesktop.org/wiki/Softwar ... calibrator
Archlinux AUR:
https://aur.archlinux.org/packages.php?ID=35031

After 2 iterations of calibration I've got the following options to store in "/etc/X11/xorg.conf.d/99-touch-calibr.conf":

Code: Select all

Section "InputClass"
	Identifier	"calibration"
	MatchProduct	"eGalax Inc. USB TouchController"
	Option	"Calibration"	"79 4012 3895 262"
	Option	"SwapAxes"	"1"
EndSection

Thus now the touchscreen works fine. The problem remaining at the moment is the HDMI audio. Principally it works, but there are strange issues I described in the post:
http://www.raspberrypi.org/phpBB3/viewt ... 47#p178247

The overall impression of Lilliput HDMI touchscreen monitor is really good.

[msmithy12]

im trying to get xinout callibrator installed and i keep getting,

package requirements (x11 xext xi inputproto) were not met

any ideas?

[aragats]

im trying to get xinout callibrator installed and i keep getting,
package requirements (x11 xext xi inputproto) were not met

If you're running Archlinux just install "libxext" (it will also install "xextproto" as dependency):

Code: Select all

# pacman -S libxext

For other distros you'll need to find the corresponding package.

[tetravalence]

In Debian/Raspbian,
sudo apt-get install libx11-dev libxext-dev libxi-dev x11proto-input-dev

[msmithy12]

You guys are amazing, thank you!

Incase anyone is on here in the future heres what i did to get my touchscreen running.

Code: Select all

sudo apt-get install libx11-dev
sudo apt-get install libxext-dev
sudo apt-get install libxi-dev
sudo apt-get install x11proto-input-dev

if any of those fail run update and upgrade and try again

then

download http://github.com/downloads/tias/xinput ... 7.5.tar.gz

Code: Select all

 
tar xvzf (downloaded file)
cd (downloaded file)
./configure
make
sudo make install

then

prefrances/calibrate touchscreen

[Mechduino]

I tried this and I keep getting an error that says it cannot find a configurable device, I looked at lsusb and it finds my touchscreen, is their a way to make the software see it as a touchscreen?

[ComputerXplorer]

What about a 3D touchscreen for the raspberry pi! Are there any?

[Mechduino]

Get a 3D screen then put a touch film over top of it is what I reccomend.

[Abhiram88]

Hello people, I'm trying to calibrate Lilliput 669GL TFT monitor as a touch screen, can anyone tell me where I can find the tutorial to calibrate touch screen?
I have already downloaded and configured the xinput_calibrator file and now I need to calibrate the monitor as a touch screen.

[Abhiram88]

You guys are amazing, thank you!

Incase anyone is on here in the future heres what i did to get my touchscreen running.

Code: Select all

sudo apt-get install libx11-dev
sudo apt-get install libxext-dev
sudo apt-get install libxi-dev
sudo apt-get install x11proto-input-dev

if any of those fail run update and upgrade and try again

then

download http://github.com/downloads/tias/xinput ... 7.5.tar.gz

Code: Select all

 
tar xvzf (downloaded file)
cd (downloaded file)
./configure
make
sudo make install

then

prefrances/calibrate touchscreen

Hi,
Could you please tell me where the tutorial to calibrate a touch screen is? I have followed you instructions but I don't know how to calibrate a touch screen on Raspberry pi.
If there's a link to the tutorial, I would be grateful to you if you post it.

[aragats]

The "xinput_calibrator" program is self-explaining, just run it in graphical environment from a terminal emulator (xterm, urxvt etc.) and it will ask to touch the screen at drawn crosses sequentially in 4 corners and in the center, then it will produce a textual output with simple instructions. Personally I used xorg.conf section.

[msmithy12]

The "xinput_calibrator" program is self-explaining, just run it in graphical environment from a terminal emulator (xterm, urxvt etc.) and it will ask to touch the screen at drawn crosses sequentially in 4 corners and in the center, then it will produce a textual output with simple instructions. ...

Thats the way i did it, i'd love to post a video but Im using the pi/touchscreen for a company project and uploading a youtube a vid of what im doing would get me fired.

But if you follow my previous instructions and then theres a calibrate touchscreen option in system tools or settings (sorry im away from my pi ATM)

Also someone PMd me about the screen im using and a link to it: http://www.carcomputer.co.uk/index.php? ... word=669gl

its a lilliput 669gl which is 7" but im sure they do a 896gl which is 9" and they delivered in like 3days.