lcd touch screen 17 inch free sample

2023-01-03 12:32:11

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

For this tutorial I composed three examples. The first example is distance measurement using ultrasonic sensor. The output from the sensor, or the distance is printed on the screen and using the touch screen we can select the units, either centimeters or inches.

The third example is a game. Actually it’s a replica of the popular Flappy Bird game for smartphones. We can play the game using the push button or even using the touch screen itself.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

Next we need to define the fonts that are coming with the libraries and also define some variables needed for the program. In the setup section we need to initiate the screen and the touch, define the pin modes for the connected sensor, the led and the button, and initially call the drawHomeSreen() custom function, which will draw the home screen of the program.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Now we need to make the buttons functional so that when we press them they would send us to the appropriate example. In the setup section we set the character ‘0’ to the currentPage variable, which will indicate that we are at the home screen. So if that’s true, and if we press on the screen this if statement would become true and using these lines here we will get the X and Y coordinates where the screen has been pressed. If that’s the area that covers the first button we will call the drawDistanceSensor() custom function which will activate the distance sensor example. Also we will set the character ‘1’ to the variable currentPage which will indicate that we are at the first example. The drawFrame() custom function is used for highlighting the button when it’s pressed. The same procedure goes for the two other buttons.

So the drawDistanceSensor() custom function needs to be called only once when the button is pressed in order to draw all the graphics of this example in similar way as we described for the home screen. However, the getDistance() custom function needs to be called repeatedly in order to print the latest results of the distance measured by the sensor.

Here’s that function which uses the ultrasonic sensor to calculate the distance and print the values with SevenSegNum font in green color, either in centimeters or inches. If you need more details how the ultrasonic sensor works you can check my particular tutorialfor that. Back in the loop section we can see what happens when we press the select unit buttons as well as the back button.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

lcd touch screen 17 inch free sample

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lcd touch screen 17 inch free sample

Touch laptops are popular because their touch displays make it faster and easier to interact with your computer -- whether you"re navigating the desktop, making selections in software programs, or just about anything else.

As a tablet, the display is sensitive to contact, either from the force of your touch or the flow of electrons from your fingertips. Each action requires just a simple touch or swipe, with no need to move or click a mouse or keyboard. Take a look. Every laptop featured on this page is available with a touch display!

And with Windows 10 preloaded on most models, the benefits of touch technology go even further thanks to this revolutionary operating system that"s fully optimized for intuitive touch input and browsing.

The advantages of touch technology on laptops go beyond user speed. Because their visuals are so important to their function, they often have better-than-average display technology (resolution, color, etc.).

Plus, touch models are ideal for work and creation using a stylus, from art projects to data entry and note-taking. And many Lenovo models pack in a pen as standard so that you can interact more precisely with your touch display.

Touch technology was once considered a luxury. Not any longer. Its benefits are plentiful, and today touch displays are a common companion of laptops across all the top manufacturers – Lenovo included.

In large part, this is because consumer demand for touch technology has grown alongside the evolution of modern operating systems, applications, and other software. It now makes more sense than ever to interact with your computer of choice through touch owing to how attuned to touch interaction most of us are – just think of how much time we spend browsing our phones with just the use of a single finger. Touch capability is now a natural and highly-expected technology for almost any electronic device that features a visual display.

As the technology behind touch displays has become more commonplace so have the prices come down. The low or high cost of your next laptop is most likely going to depend more on other features and components than touch. For example, a great touchscreen gaming laptop that"s equipped with a speedy Intel Core i5 processor, NVIDIA GeForce graphics card, 16GB of RAM, and Full High-definition (HD) display might run you between $1,400-1,600, but the same model without a touchscreen wouldn"t nudge the low end of that range any further down.

Lenovo Yoga 2 in 1 touchscreen laptop computers deliver a premium experience inside and out. With smooth exteriors that show off a slick style, along with top-tier components on the inside, Yoga convertible laptops have it all: Up to the latest Intel Core processor options, high-end graphics (including discrete graphics for top-tier gaming on select models), active pen compatibility, and a variety of usability modes, including a tablet mode that lets you flip your keyboard completely around to lay flush against the back of your laptop"s display – now you have the benefit of two devices in one.

Speaking of displays, one of the most important considerations when considering the best laptop for you is screen size. 15 inches is the sweet spot for most users. But many models also feature 14" displays that allow for a slimmer profile and even easier haul. You"ll want to consider the pros and cons of each available size: more screen real estate, or an overall slimmer and lighter device?

For our current pick as the best under-500 touch laptop, shop IdeaPad 2 in 1 laptop featuring up to 15" touch displays, 4GB of RAM or more, and bold Full High Definition (FHD) visuals that allow for better working, creating, and streaming.

Or maybe you"re looking for an even better value? You"ve come this far, so why not save a couple hundred more? Consider our Lenovo Chromebook touch lineup to find many touchscreen laptops under 300. Chromebooks are built around the Google ecosystem, meaning that using a Chromebook is as easy and intuitive as swiping through a piece of fruit on your touchscreen Chromebook laptop display.

Each operating system offers different things. With a Lenovo Windows touchscreen laptop, you get a lot of flexibility, while Lenovo Chrome touchscreen laptops are incredibly intuitive. The best operating system all depends on your needs. We recommend Lenovo Chrome touchscreen laptops for activities like drawing and learning, while for activities like programming, we recommend a windows touch screen laptop.

A touchscreen laptop has a touchscreen display that isn"t detachable or flexible, while a 2-in-1 laptop is a hybrid between a regular laptop and a tablet. A 2-in-1 laptop can either be a detachable touch screen laptop or a foldable laptop with a flexible screen display. The hinges allow the screen to flip 180° from the keyboard to lay flat like a tablet.

Our ThinkPad, Chromebook, and IdeaPad lineups all feature some of the best touch screen laptop for drawing. However, the Lenovo ThinkPad is our current pick for the best touchscreen laptop for drawing. The ThinkPad delivers the bandwidth to create and draw with ease. With Intel Core processor options and high-end graphics, you can count on an exceptional drawing experience.

No, you don"t have to, but it is recommended to use one. The stylus pen is specially designed to operate a touchscreen with ease. If you are a designer, artist, or student, we recommend getting one. They allow you have control to write, jot and draw with precision and ease in a way you can"t with your fingers. Using a stylus pen will feel like holding an actual pen or paintbrush. We have a range of stylus pen for touch screen laptop that is designed to increase your accuracy and speed while creating art, studying, or working.

Yes, we do our Lenovo ThinkPad, Lenovo Legion, and Lenovo Ideapad, all feature 17-inch touch screen laptop. In addition, we have touchscreen laptops with screen sizes that range from 10 inches to more than 32 inches.

No, it is not difficult cleaning touch screen laptop. Here"s how to clean touch screen laptop; turn off your laptop, use a microfiber cloth to remove dust and smudges from the screen, clean stubborn smudges with eyeglass cleaner, and dry the screen with a microfiber cloth.

Though many people have found affordable a used touch screen laptop that works fine, buying a used laptop can be very risky. Many retailers will sell refurbished touch screen laptops initially shipped with some sort of defects, and you may end up with an inferior product and zero support when you try to get help. Getting a used laptop may seem like a cheaper option than getting a new one. However, the maintenance costs coupled with the potential of earlier replacement make the actual value of buying a used laptop far lower than you may realize. This is why we recommend buying a new laptop. If you are trying to save costs, we regularly offer deals on laptops.

Lenovo regularly offers many of our top touchscreen laptops on sale. Our laptop deals page serves as your doorway to a feast of savings available at any time and spanning our entire assortment of the latest and great Lenovo laptops – including those with touch technology.

A touchscreen laptop provides a number of benefits over a traditional laptop. Perhaps the most obvious benefit is the ability to interact directly with the screen. This can make tasks such as browsing the web or editing documents much more intuitive and efficient. Another benefit of touchscreen laptops is that they tend to be more portable and lightweight than traditional laptops. This makes them ideal for use on the go, whether you"re traveling for business or pleasure. Finally, touchscreen laptops often come equipped with features that make them perfect for creative professionals. For example, many models come with built-in styluses that allow for precise drawing and painting. If you"re looking for a laptop that can help you unleash your creativity, a touchscreen model is definitely worth considering.

If you"re looking for a touchscreen laptop that"s also good for gaming, there are a few things you"ll want to keep in mind. First, touchscreen laptops tend to be more expensive than traditional laptops. Second, touchscreen laptops usually have lower-end hardware compared to dedicated gaming laptops. This means that if you"re looking for the best possible gaming performance, a touchscreen laptop is not going to be your best option. Third, touchscreen laptops can be more difficult to game on because of their glossy screens and smaller size. If you don"t mind these potential drawbacks, then a touchscreen laptop could be an option for you.

lcd touch screen 17 inch free sample

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