raspberry pi touchscreen display tutorial - lcd touch screen display

Discard the HDMI cable because now you can have a screen on your Pi!
This Instructure will guide you through the process of getting the Pi settings through the touch screen display and how to use it to meet your needs.
Any type of hat
Style displays are invaluable for any project as they allow you to debug the Pi without the need for an external monitor.
You can deploy the project from the Pi itself and monitor its progress.
Display and Pi are the main components of this project.
DFRobot sells an excellent monitor that I will discuss in this tutorial: If you don't have a keyboard/mouse, micro SD card, then you may also want to pick up a handy power supply: this monitor also supports the gravity interface of DFRobot.
You can connect up to three sensing modules to the Monitor: you need an HDMI monitor to start and run the system, but once the monitor is set up, you no longer need an HDMI monitor.
The first thing you need to do is configure the SD card correctly.
First download the disk image of Raspbian from this website to your computer: the latest version of Raspbian cannot use the driver of the monitor yet.
I downloaded the raspberry. 2017-01-
10/release, the effect is very good.
I like to install image files to my SD card using the app Etcher: Etcher actually did everything for you.
Just open the app, select your disk image and SD card and let it run.
Once Etcher is done, you can plug the SD card into the Pi, connect the HDMI display and power it on.
Some text should flash on the screen and the Pi should boot to the Raspbian desktop.
Connect the Pi to wifi or Ethernet and then visit this page.
It will explain the process of how to install the display driver.
Before running the script, make sure to connect the touch screen to the Pi.
If everything is OK, your monitor should now show the Raspbian desktop!
You can now unplug the HDMI display.
As you can see from the image above the screen's perspective, this is just OK.
In the horizontal direction, you can see the contents of the display until about 30 ° angle, but in the vertical direction, it is much less.
The color is good but everything has a slight blue color.
It's not as obvious as it looks in the photo.
The touch screen is surprisingly responsive and actually useful for navigation.
This surprised me because I didn't feel the Raspbian was touching at first --friendly.
The touch screen is not as capacitive as the touch screen on a mobile phone or tablet;
The display does not just rely on pressure to sense the current.
You can use any object like a toothpick to activate this resistive touch screen.
Refresh rate is sufficient for general navigation, but I will discuss video performance in the next step.
A common use case for Raspberry Pi is as media-
Consumer devices.
Therefore, it is important to process video on the touch screen.
I will fix the screen refresh rate around 20Hz.
This means that it is hardly suitable for watching videos.
It works, of course, but I'm not going to use this monitor just for media consumption.
Browsing YouTube and other video streaming sites with built-in video is definitely feasible
However, chromium.
Raspberry Pi 3 B is actually very funky, especially when it only needs to drive a small number of pixels.
There is no obvious lag when browsing the internet.
Your screen is not real.
However, I do not recommend reading novels in this regard.
Touch navigation does work, but I recommend using the mouse for a better experience.
I found all the keyboards on the screen were too cramped to use correctly with my fingers, so I would use the physical keyboard.
As mentioned earlier, the DFRobot touch screen has slots for three gravity modules.
This allows you to easily add sensing or output functions to any project without any soldering.
The gravity interface makes it very easy to connect.
If you want to create a project using anything else, most of the pins of the Raspberry Pi are disconnected on the side of the board.
I think this touch screen is the ideal solution for the manufacturer as it allows the individual to be completely self-contained
Contains items that do not require an external monitor.
Writing some code in Python, getting input from the GPIO and displaying it on a graphic or meter optimized for that screen will be very simple.
All in all, this is a great display for a variety of purposes.
Its video and game performance may be insufficient, but this touch screen is a great solution for general interaction with Pi.