raspberry pi 3 model b lcd display quotation

first of all let me say that I dont have any experience with a Raspberry, Arduino etc. at all, and also dont own any equipment yet. This is more a general question to the more experienced members here, so please bear with me if this comes across as a big unfocused

What I would like to do is built a keystand for my girlfriend in a NES case, that includes a function to display random quotes in the cardridge slot on key press. Basically, everytime she leaves the house in the morning she can press a button and a nice random quote from storage will be displayed on a LED. Thats it!

I have read through a lot of post here and other forums, and I found things similar to this (I found a post about random fortune cookie quotes), but those were all a bit more focused on the coding in itself, which is not really accessible to me (i have only very basic programming knowledge, and I am not sure if I have time to learn the basics fully). I am trying to catch up on everything myself, but thought that asking my be helpful. So I just wanted to ask for opinions on the following things:

2) Would it be very possible to do something like this without any knowledge with Arduino, maybe just by following tutorial on how to put out stuff in LED etc?

3) Is there are generally very well regarded resource for such tutorials? I have started reading the "Beginning with Raspberry Thread" here, but just in case I thought it might be good to ask.

Again, I know these are very basic questions. I am trying my best to catch up in the forum myself, but I would like to finish this project by the end of the month, so I thought asking my help a lot! Thank you all of any help, I really appreciate it!

I have a 19" touchscreen display that I got for $2. I believe it works... I connected to a Windows PC and I get an image and some response. I don"t want to spend time getting the display to work perfectly with Windows, because I"d like to use it with my Pi 3 Model B if possible.

It is a Tyco Electronics elo Model ET1937L 19" LCD Touch Monitor. I have a USB cable for the touch response, and a HDMI to VGA converter cable to use the Pi HDMI output to the monitor"s VGA input. And a power supply. On their website I found a driver file with title "Linux (5.x/4.x/3.x Kernel)(Raspian 32-bit ARMv8)". I don"t know much about the Pi or Linux. It appears that the current Linux kernel is a higher version than 5. And the Pi specs describe the processor as 64 bit, while this driver is written for 32 bit. (The monitor is around 10 years old).

Does it sound like I"d have a chance at getting this touchscreen to work with my Pi? They also have "Linux (5.x/4.x/3.x Kernel)(Ubuntu 64-bit ARMv8)" driver for download, if that"s a more likely fit.

Is there a guide somewhere around here to how to use another video driver? (Actually, I suppose the driver is for the video AND the input from the touch screen). High level - does the driver need to be on the SD card that has the OS - in the boot drive? And then is there some command that needs to be included in config.txt to tell the OS to use that driver???

Rather than plug your Raspberry Pi into a TV, or connect via SSH (or remote desktop connections via VNC or RDP), you might have opted to purchase a Raspberry Pi touchscreen display.

Straightforward to set up, the touchscreen display has so many possibilities. But if you"ve left yours gathering dust in a drawer, there"s no way you"re going to experience the full benefits of such a useful piece of kit.

The alternative is to get it out of the drawer, hook your touchscreen display to your Raspberry Pi, and reformat the microSD card. It"s time to work on a new project -- one of these ideas should pique your interest.

Let"s start with perhaps the most obvious option. The official Raspberry Pi touchscreen display is seven inches diagonal, making it an ideal size for a photo frame. For the best results, you"ll need a wireless connection (Ethernet cables look unsightly on a mantelpiece) as well as a Raspberry Pi-compatible battery pack.

Several options are available to create a Raspberry Pi photo frame, mostly using Python code. You might opt to script your own, pulling images from a pre-populated directory. Alternatively, take a look at our guide to making your own photo frame with beautiful images and inspiring quotes. It pulls content from two Reddit channels -- images from /r/EarthPorn and quotes from /r/ShowerThoughts -- and mixes them together.

Rather than wait for the 24th century, why not bring the slick user interface found in Star Trek: The Next Generation to your Raspberry Pi today? While you won"t be able to drive a dilithium crystal powered warp drive with it, you can certainly control your smart home.

In the example above, Belkin WeMo switches and a Nest thermostat are manipulated via the Raspberry Pi, touchscreen display, and the InControlHA system with Wemo and Nest plugins. ST:TNG magic comes from an implementation of the Library Computer Access and Retrieval System (LCARS) seen in 1980s/1990s Star Trek. Coder Toby Kurien has developed an LCARS user interface for the Pi that has uses beyond home automation.

Building a carputer has long been the holy grail of technology DIYers, and the Raspberry Pi makes it far more achievable than ever before. But for the carputer to really take shape, it needs a display -- and what better than a touchscreen interface?

Ideal for entertainment, as a satnav, monitoring your car"s performance via the OBD-II interface, and even for reverse parking, a carputer can considerably improve your driving experience. Often, though, the focus is on entertainment.

Setting up a Raspberry Pi carputer also requires a user interface, suitable power supply, as well as working connections to any additional hardware you employ. (This might include a mobile dongle and GPS for satnav, for instance.)

Now here is a unique use for the Pi and its touchscreen display. A compact, bench-based tool for controlling hardware on your bench (or kitchen or desk), this is a build with several purposes. It"s designed to help you get your home automation projects off the ground, but also includes support for a webcam to help you record your progress.

The idea here is simple. With just a Raspberry Pi, a webcam, and a touchscreen display -- plus a thermal printer -- you can build a versatile photo booth!

Various projects of this kind have sprung up. While the versions displayed above uses a thermal printer outputting a low-res image, you might prefer to employ a standard color photo printer. The wait will be longer, but the results better!

Projects along these lines can also benefit from better use of the touchscreen. Perhaps you could improve on this, and introduce some interesting photo effects that can be tweaked via the touchscreen prior to printing?

How about a smart mirror for your Raspberry Pi touchscreen display project? This is basically a mirror that not only shows your reflection, but also useful information. For instance, latest news and weather updates.

Naturally, a larger display would deliver the best results, but if you"re looking to get started with a smart mirror project, or develop your own from scratch, a Raspberry Pi combined with a touchscreen display is an excellent place to start.

Many existing projects are underway, and we took the time to compile six of them into a single list for your perusal. Use this as inspiration, a starting point, or just use someone else"s code to build your own information-serving smart mirror.

Want to pump some banging "toons" out of your Raspberry Pi? We"ve looked at some internet radio projects in the past, but adding in a touchscreen display changes things considerably. For a start, it"s a lot easier to find the station you want to listen to!

This example uses a much smaller Adafruit touchscreen display for the Raspberry Pi. You can get suitable results from any compatible touchscreen, however.

Alternatively, you might prefer the option to integrate your Raspberry Pi with your home audio setup. The build outlined below uses RuneAudio, a Bluetooth speaker, and your preferred audio HAT or shield.

Requiring the ProtoCentral HealthyPi HAT (a HAT is an expansion board for the Raspberry Pi) and the Windows-only Atmel software, this project results in a portable device to measure yours (or a patient"s) health.

With probes and electrodes attached, you"ll be able to observe and record thanks to visualization software on the Pi. Whether this is a system that can be adopted by the medical profession remains to be seen. We suspect it could turn out to be very useful in developing nations, or in the heart of infectious outbreaks.

We were impressed by this project over at Hackster.io, but note that there are many alternatives. Often these rely on compact LCD displays rather than the touchscreen solution.

Many home automation systems have been developed for, or ported to, the Raspberry Pi -- enough for their own list. Not all of these feature a touchscreen display, however.

One that does is the Makezine project below, that hooks up a Raspberry Pi running OpenHAB, an open source home automation system that can interface with hundreds of smart home products. Our own guide shows how you can use it to control some smart lighting. OpenHAB comes with several user interfaces. However, if they"re not your cup of tea, an LCARS UI theme is available.

Another great build, and the one we"re finishing on, is a Raspberry Pi-powered tablet computer. The idea is simple: place the Pi, the touchscreen display, and a rechargeable battery pack into a suitable case (more than likely 3D printed). You might opt to change the operating system; Raspbian Jessie with PIXEL (nor the previous desktop) isn"t really suitable as a touch-friendly interface. Happily, there are versions of Android available for the Raspberry Pi.

This is one of those projects where the electronics and the UI are straightforward. It"s really the case that can pose problems, if you don"t own a 3D printer.

None of the Raspberry Pi boards have their own storage device. You need a SD card to store the Operating System and the Pi will boot from it. Earlier versions of Pi have a SD card slot, whereas the latest models like the Pi 3 support Micro SD cards.

Most of the sites recommend an 8 GB Micro SD card. Is it sufficient ? Look at the 3rd picture. I have loaded NOOBS (New Out Of Box Software : We will discuss about it latter) in an 8 GB Micro SD Card. When I tried to install Windows IOT Core Insider Preview, the system says that it needs 7765 MB of space whereas the space remaining in the Micro SD card is only 6428 MB. So, when you buy a Micro SD card go for a minimum of 16 GB. The cost difference between an 8 GB and 16 GB Micro SD cards is not much and you will not regret your decision.

There are different types of Micro SD cards available in the market. You need a faster Micro SD card so that it won"t take lot of time to boot as well as easy to work with. Please see the second picture. The specifications on the Micro SD card cover says "Micro SDHC, UHS-1 card" and 16 GB capacity with 48 MB per second transfer speed / Class 10. The SDHC stands for "Secure Digital High Capacity" and the UHS stands for "Ultra High Speed". The SDHC cards have the capacity between 4GB to 32GB. Another type of MICRO SD card known as SDXC (Secure Digital eXtended Capacity) offers more than 32 GB storage capacity.

In the first picture I have shown a SD Adapter along with the 16 GB Micro SD Card. When Raspberry Pi 3 supports only Micro SD card, why do you need a SD Adapter ?

You need to load or flash the Operating System for the Pi 3 in the Micro SD Card using a Laptop or a Desktop Computer. The Card Reader slots provided in the Laptop / Desktop supports only SD type cards. Using the SD adapter it is possible to read or write to the Micro SD card in a Laptop / Desktop.

The Micro SD Card needs to be formatted before being used. You can use a program known as "SD Formatter 4.0 for SD/SDHC/SDXC" which you can download and install on your computer based on the Operating System used from the following link :

Before progressing with formatting, insert the Micro SD Card with adapter in your system"s SD card reader slot and note down the correct drive letter from "My Computer". Please refer the 4th picture here, which is Drive letter "F" in my case. Selection of wrong drive letter may delete all data permanently from that drive, so proceed with caution.

Start the SD Formatter program and select the correct Drive letter to be formatted.In the Options Setting menu for Format Type, select "Full Erase" and Format Size Adjustment "On" Click "OK" and then "Format".

Editors" note, Aug. 14, 2018: Originally published July 2, 2017, this article has since been updated to include new DAKboard features and an open-source alternative to DAKboard, MagicMirror.

For instance, a Raspberry Pi 3 Model B has a higher power requirement (2.5A) and, thus, necessitates a specific power brick. It will definitely still work, but a Raspberry Pi 2 Model B

The ideal board for the job is the £9.30 or AU$14.96) for the board. To set up and connect the Raspberry Pi, you will need a short HDMI cable and a microSD card of at least 8GB.

The most important thing you need is an old monitor -- preferably a slim model with HDMI. Some computer monitors will work better than others. Specifically, those that have the connection ports facing downward instead of straight out from the back work much better.

You will also need an extension cable with at least two plugs at the end. Take note of whether your monitor"s power supply needs a two- or three-pronged plug and buy the appropriate extension cord.

Finally, you will need supplies to mount the Raspberry Pi, the monitor"s power supply, all the cables and the female end of the extension cord on the back of the monitor. I used two-sided mounting tape. And I used duct tape to keep the excess cord attached as tightly to the back of the monitor as possible.

Typically, there isn"t enough room to install a Raspberry Pi inside the original backplate -- unless you"re using a Pi Zero W. Even then, the excess cords and the power supply for the monitor won"t fit. The monitor will sit closer to the wall without the back cover, so it"s best to discard it.

Connect the Raspberry Pi to the HDMI port on the monitor and -- without plugging in the extension cord -- connect the power cables to both the Raspberry Pi and the monitor. Use this to figure out the best layout of all the parts to keep everything as slim as possible.

As for the picture-hanging wire, there were no decent places to connect on the Dell monitor I used, so I drilled one hole on either side of the rear bezel that held the back cover on. This is where you might have to get creative, since no two monitors are the same.

Surprisingly, this project doesn"t require any special code for the Raspberry Pi. In fact, it will be running on Raspbian OS, a Linux distribution specifically for the Raspberry Pi.

DAKboard is the web interface used to display all the information on the monitor. It can be set up from the Raspberry Pi or from a computer, phone or tablet.

Just go to dakboard.com and create an account. Then begin configuring the layout to your liking. There are five different screen configurations to choose from:Top/Bottom

Next, you must configure DAKboard to suit your needs. For instance, start by choosing your time zone, selecting either an analog or a digital clock. Select a date-and-time format.

For background options, you can choose between a host of different sources, such as Instagram, Google Photos, Dropbox, OneDrive, Bing, Flickr, etc. After that, you can connect up to two ICAL calendars for free, select between Yahoo and AccuWeather for the forecast source, add a single RSS feed for rotating headlines, and connect Todoist, Wunderlist or Microsoft To-Do as a task manager to display and add a custom message to the DAKboard.

By upgrading to DAKboard Premium, which starts at $4.95 per month (no specific info about international pricing and availability), you can unlock the ability to add additional calendars, set a Vimeo, YouTube video or website as the background, select

The idea is that, when powered on, the Raspberry Pi will automatically boot to your DAKboard. If you want to hang the monitor vertically instead of horizontally, you will also need to rotate the display.

First, power on the Raspberry Pi, open Terminal and type in sudo raspi-config. Once in the configuration tool:Go to Boot Options > Desktop Autologin Desktop GUI and press Enter.

Next, you will want to edit the config.txt file to rotate the screen 90 degrees. In Terminal, type sudo nano /boot/config.txt and press Enter. This opens the config file in the nano text editor. Add these lines to the end of the file (without the bullet points):# Display orientation. Landscape = 0, Portrait = 1

Finally, to force the screen to stay on and automatically boot with dakboard.com loaded in Chromium, type sudo nano ~/.config/lxsession/LXDE-pi/autostart and press Enter. Inside nano, add these four lines (without the bullet points):@xset s off

Once the Raspberry Pi has fully rebooted, use a connected mouse and keyboard to log in to DAKboard. Click Login and enter your credentials. Your DAKboard should load with your previously configured settings. If you want to change anything, click the settings cog in the upper right corner of the display (move the cursor to make it appear).

Hang the monitor on the wall and you"ll have yourself a digital clock and calendar, the week"s forecast, important headlines and beautiful pictures on display all day.

If you would prefer the monitor to turn on and off at different times to save power, DAKboard includes instructions on how to set that up with a script.

DAKboard is a great way to set up a Raspberry Pi display in a hurry. It"s easy and user-friendly and it looks great. However, it has its limitations and encourages users to upgrade to Premium to unlock the best features.

Work as HDMI touch monitorThis product can be used as the HDMI touch monitor of Windows computer, only need to connect HDMI interface and TOUCH interface,

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Wide Compatibility: The case is designed to perfectly house Raspberry Pi 4 B, 3 B/B+ with a small touch screen. NOTE: Raspberry Pi motherboards are not included.

Features: 480 x 320 display resolution (HDMI input resolution supports 480*320 to 1920*1280); Refreshes up to 30 frames per second; 3.5mm audio/headphone jack; The backlight can be adjusted and turned on/off.

Effective Cooling Design: It comes with a copper heatsink for the CPU, the display board is mounted a 25mm×25mm brushless quiet fan, and cuts for air outlets, all of them cool your pi 4 effectively.

Plug & Play: Don"t need to reboot the Pi when connected, it doesn"t require any external power supply, and it displays with no need for the driver. Please note the touch function needs to install the driver.

Lightweight and Portable: the overall dimension of this tiny screen with enclosure is 3.66" ×2.48" ×1.18", and the delicate design and mini stylus make this kit completed and convenient to use.

If you want to use the touch function, you need to download and install the driver manually refers to the instructions we provided. The driver includes the settings of the Raspbian OS resolution and touch screen support.

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Kuman 3.5" Inch TFT LCD Display 480x320 RGB Pixels Touch Screen Monitor for Raspberry Pi 3 2 Model B B+ A+ A Module SPI Interface with Touch Pen SC06 (3.5 inch Touch Screen) : A…

If you are like me, you might have a bunch of different components laying around the house that aren"t doing much but collecting dust. I decided to build this for my daughters room, so maybe someone else can enjoy building it if they are looking for a simple project to learn python or the Raspberry Pi.

And that"s it! If you have dependency issues you may have to do some troubleshooting on your own. I wrote this documentation awhile after I made the project so hopefully everything runs smoothly!

Obtain the the touchscreen driver and Slideshow application onto a USB stick. Insert the USB stick, open file manager, open a command line, and run the setup

Both the display driver board and the Pi need power- you can bridge them using the red and black jump wires supplied from the 5v and GND on the display driver board to the 5V and GND on the Pi ( find them here: http://pi.gadgetoid.com/pinout ) then plug the power into the display board.

If your touchscreen or display doesn’t work, triple check the FPC connectors - I’ve tested a lot of “not working” LCDs to find them working perfectly. In all cases the cables should be pushed in firmly and the clips secured fully- the larger FPC for the display ribbon takes quite a bit of force. I’ve posted a guide to the FPC connectors here: http://forums.pimoroni.com/t/raspberry-pi-official-7-touchscreen-assembly/1132

If you’ve got any reservations about connecting wires to your Pi’s GPIO, I recommend our split dial microB USB power cable: https://shop.pimoroni.com/products/split-microb-usb-power-cable

Make sure you update your Pi first, you’ll need the latest software and the Raspbian OS in order to drive the screen. A full reinstall of Raspbian Jessie works best, you can find it here: https://www.raspberrypi.org/downloads/raspbian/

Follow the linked Installation Guide, and make sure you go into Menu -> Preferences -> Raspberry Pi Configuration and expand your filesystem when you first boot up your Pi.

If you don’t want to reinstall and want to make sure you’re using the latest stable firmware, make sure you have a network connection and type this into Terminal:

There’s no better place to learn everything you might need to know about the screen than the Raspberry Pi blog post which you can find here: https://www.raspberrypi.org/blog/the-eagerly-awaited-raspberry-pi-display/

The touchscreen works over the DSI connector, so no extra connections are needed. It’s connected to the driver board via the smaller ribbon cable- don’t forget it!

It’s capacitive touch- it senses your finger, but not pointy objects like a resitive screen. It works with stylii (styluses?) like the ones you might use with your iPad

This is unfortunately a side-effect of many developers assuming a minimum screen resolution of 1024x768 pixels. You can usually reveal hidden buttons and fields by;

Yes and no. As explained in the official Pi blog on the subject, only applications which know how to output over HDMI can be used. An example is given for OMXPlayer: https://www.raspberrypi.org/blog/the-eagerly-awaited-raspberry-pi-display/

It is possible to use both display outputs at the same time, but it does require software to choose the right display. Omxplayer is one application that has been modified to enable secondary display output.

Please note, you may need to increase the amount of memory allocated to the GPU to 128MB if the videos are 1080P, adjust the gpu_mem value in config.txt for this. The Raspberry Pi headline figures are 1080P30 decode, so if you are using two 1080P clips it may not play correctly depending on the complexity of the videos.

Currently you can’t run a dual display X desktop, and we don’t know when or if this will be possible. If you know how to make it happen, you can chime in on this thread: https://www.raspberrypi.org/forums/viewtopic.php?f=108&t=120541

Note: An update has been pushed to Raspbian to flip the screen ( rotate it by 180 degrees ) for a better desktop viewing angle. This makes it upside-down in our stand and the official Pi stand, so you’ll need to change a setting to flip it back.

With the software updated it’s actually reasonably straight-forward to get the touchscreen working with a Model A or B Raspberry Pi. First you must make two additional connections between your Pi’s GPIO and the touchscreen: these are the SDA ( http://pinout.xyz/pinout/pin3_gpio2 ) and SCL ( http://pinout.xyz/pinout/pin5_gpio3 ) lines ( which you can connect using the supplied green and yellow wires ).

Note: This will give your i2c over to the Pi for running the LCD/Touchscreen and you wont be able to use any other i2c devices or add-on boards which require i2c.

We’ve decided to keep the current design and orientation because it’s the best out of the two and the 10 degree difference in viewing angle is very slight. ( I use these screens every day ).

If you absolutely need an extra 10 degrees of vertical viewing you can fit a Pibow Coupe to the back of the LCD screen and remove the legs. This lets it rest slightly further back while still remaining stable enough for everyday use. It also fits pretty neatly into a bag, too.

If you get a white screen, it probably means the screen’s ribbon cable isn’t seated properly. Make sure it’s pushed firmly into place and that the connector is closed properly.

If you get a black screen, it likely means your DSI cable ( the one between the Pi and the driver board ) isn’t seated correctly or is… backwards ( I’m not even sure this is a real thing! ). We’ve had some success reversing the cable in this case- switching which end plugs into which part.

Be extremely careful when re-seating any ribbon cables, the retaining clips can be fragile. If you have a pre-assembled screen then the main ribbon cable is probably fine.

I’ve tried a number of USB cables from the USB port on the LCD driver board to the power input of my Pi and have invariably seen the little rainbow square indicating undervoltage in the top right hand corner of the LCD. (Note: This has seen been updated to a lightning bolt indicating the same)

I have put together a prototype split cable, and we’re looking into sourcing microUSB cable splitters to use in conjunction with the official Pi power supply as the most reliable solution.

Chris_c on the official Pi forums has discovered how to enable right-click with a simple configuration change. This allows you to press and hold on the touchscreen to trigger a right click.

As Clive demonstrates below, you can make a much more compact setup by flipping your Pi and mounting it with the ports facing towards the back of the LCD.

A standard GPIO ribbon cable will not fit between the two metal risers, so it’s impossible to route a Black HAT Hack3r or Cobbler out from the display in this position, but there might be cables out there that fit.

Gasp! Okay, I can see why you’d want to do this! I couldn’t put it better than the great step-by-step forum post here: https://www.raspberrypi.org/forums/viewtopic.php?f=108&t=120793

You can find a technical drawing with dimensions of the display and mount hole locations here: https://github.com/raspberrypi/documentation/tree/master/hardware/display

Make sure you mount your screen by screwing, gently, into the mounting holes either side of the metal frame, or for the driver board. Don’t attempt to mount the screen by the glass front. The tape bonding the glass to the rest of the screen isn’t designed to carry the weight of the screen, your Pi and whatever else might be connected.

The Compute Module IO board (for CM and CM3) includes a connector for the screen, see: https://www.raspberrypi.org/documentation/hardware/computemodule/cmio-display.md

In the previous article, I described the steps needed to install an LCD touchscreen on the Raspberry Pi. In this article, I will show you how to adjust the screen rotation of the LCD to landscape mode, and will show you how to calibrate the touchscreen pointer for optimal accuracy. Just follow the steps below to compete the process of setting up your Raspberry Pi LCD touchscreen:

1. First we need to change the setting for screen rotation in the /boot/cmdline.txt file. This setting is called fbtft_device.rotate=X. By default, this is set to X=0, which results in a portrait mode screen orientation. In order to switch the orientation to landscape mode, change fbtft_device.rotate=0 to fbtft_device.rotate=90. Enter sudo nano /boot/cmdline.txt at the command prompt. There should only be one line in this file. Go to the end of it and you will find the fbtft_device.rotate=X setting. Change the value from 0 to 90:

However, if you try to touch the screen now, you will find that the pointer movement does not correspond to your finger movement. This is because the LCD screen driver and the touchscreen controller driver have separate settings for screen rotation. We need to change the rotation of the touchscreen controller driver to match the rotation of the LCD screen driver.

2. You probably noticed that dragging your finger to the right moves the pointer up, not to the right. This indicates that the x and y axes of the touchscreen are swapped. To correct this, we need to swap the x axis for the y axis. This can be done by changing the swap_xy=X parameter in /etc/modules.

After the Pi finishes rebooting, you should notice that when you move your finger across the touch screen, the pointer should follow correctly in both axes. If you are using the Raspberry Pi 2 Model B, you will need to complete the calibration steps below before the pointer follows your finger correctly (and make sure that you have enabled startx to load automatically – see step 6 in this article).

You can rotate the screen 90 degrees (as we did in this tutorial) and the power connector will be at the bottom of the screen, but you can also rotate it 270 degrees so that the power connector is at the top of the screen. To do this, simply enter fbtft_device.rotate=270 in the /boot/cmdline.txt file. Then change the DISPLAY=:0 xinput --set-prop "ADS7846 Touchscreen" "Evdev Axis Inversion" 0 1 line in the /etc/X11/xinit/xinitrc file to DISPLAY=:0 xinput --set-prop "ADS7846 Touchscreen" "Evdev Axis Inversion" 1 0. All you need to do is switch the values of the 0 and 1 at the end of this line.

Now that we have our LCD touchscreen up and running, the final step in the installation is the calibration of touch control. This will make the pointer much more accurate and easier to use.

2. Now we need to install the calibration tool we will be using, xinput_calibrator; and other filters for controlling the touchscreen response. Install the tslib library by entering aptitude install libts-bin:

This will create a configuration file called /etc/ts.conf, which contains settings for variance and jitter that can be changed to optimize pointer response. See here for information about configuring ts.conf.

3. The calibration tool we will use is called ts_calibrate. We will also be using a program to check the results of the calibration called ts_test. In order to use ts_calibrate and ts_test, we must first set proper environmental variables. Enter export TSLIB_TSDEVICE=/dev/input/event0 into the command prompt, then enter export TSLIB_FBDEVICE=/dev/fb1:

4. Now we can use ts_calibrate. Enter ts_calibrate at the command prompt (make sure you are still in root mode) to run the ts_calibrate program. The program will consecutively display five crosses on different parts of the screen, which you need to touch with as much precision as possible:

This calibration data will be written to a calibration file called /etc/pointercal. To view the contents of this file, enter cat /etc/pointercal at the root command prompt.

Drag the cross around the screen and observe how closely it follows your finger or stylus to test the accuracy of the calibration. Now press the “Draw” button to enter the drawing mode:

This is kind of a long process, but it is well worth it if you want to get the LCD touchscreen set up properly. So if you have any trouble setting this up or have anything to say, please leave a comment below. Also, if you found this article useful, please share it with your friends!