tft display 3.5 arduino uno supplier

This is a 3.5-inch 320 * 480 resolution TFT color screen. It supports working boards such as Arduino uno and Arduino mega2560 and Arduino due. Also supports STM32, 51 and other conventional microcontrollers.

When using this screen, you do not need any wiring operations, just plug onto your arduino board, we will provide the corresponding Arduino library files, the development code is open source, you can use arduino and this screen to build some applications.The backlight always on, can not control the backlight, backlight is connect to 3.3V.

{"id":4846767439943,"title":"3.5\" inch TFT LCD Touch Screen Display Board 480x320 For Arduino UNO R3 Mega2560","handle":"3-5-inch-tft-lcd-touch-screen-display-board-480x320-for-arduino-uno-r3-mega2560","description":"\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e3.5 inch TFT LCD Module, Resolution 480x320, Controller ili9481 ili9468, ili9488 hx8357, or r61581.\u003c\/li\u003e\n\u003cli\u003eDesigned with a TF(Micro SD) card socket on the back of board so that you can conveniently insert a card.\u003c\/li\u003e\n\u003cli\u003eSupport touch screen function.\u003c\/li\u003e\n\u003cli\u003eThe test code is provided below.\u003c\/li\u003e\n\u003cli\u003eThis kit requires certain professional knowledge and ability, make sure you know how to use it, please. We cannot provide any technical assistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eController: ili9481 ili9468, ili9488 hx8357, or r61581\u003c\/li\u003e\n\u003cli\u003eResolution: 480x320\u003c\/li\u003e\n\u003cli\u003eVoltage: 5V\/3.3V\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2020-09-23T14:45:22+08:00","created_at":"2020-09-23T14:45:21+08:00","vendor":"DIYMORE","type":"","tags":[],"price":1199,"price_min":1199,"price_max":1199,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32576306151495,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"X30590","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"3.5\" inch TFT LCD Touch Screen Display Board 480x320 For Arduino UNO R3 Mega2560","public_title":null,"options":["Default Title"],"price":1199,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_1.jpg?v=1600843523","\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_2.jpg?v=1600843524","\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_4.jpg?v=1600843524","\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_5.jpg?v=1600843524","\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_3.jpg?v=1600843524","\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_6.jpg?v=1600843524"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_1.jpg?v=1600843523","options":["Title"],"media":[{"alt":null,"id":7475166085191,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_1.jpg?v=1600843523"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_1.jpg?v=1600843523","width":1000},{"alt":null,"id":7475166117959,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_2.jpg?v=1600843524"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_2.jpg?v=1600843524","width":1000},{"alt":null,"id":7475166150727,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_4.jpg?v=1600843524"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_4.jpg?v=1600843524","width":1000},{"alt":null,"id":7475166183495,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_5.jpg?v=1600843524"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_5.jpg?v=1600843524","width":1000},{"alt":null,"id":7475166216263,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_3.jpg?v=1600843524"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_3.jpg?v=1600843524","width":1000},{"alt":null,"id":7475166249031,"position":6,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_6.jpg?v=1600843524"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0122\/7558\/0986\/products\/X30590_6.jpg?v=1600843524","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e3.5 inch TFT LCD Module, Resolution 480x320, Controller ili9481 ili9468, ili9488 hx8357, or r61581.\u003c\/li\u003e\n\u003cli\u003eDesigned with a TF(Micro SD) card socket on the back of board so that you can conveniently insert a card.\u003c\/li\u003e\n\u003cli\u003eSupport touch screen function.\u003c\/li\u003e\n\u003cli\u003eThe test code is provided below.\u003c\/li\u003e\n\u003cli\u003eThis kit requires certain professional knowledge and ability, make sure you know how to use it, please. We cannot provide any technical assistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eController: ili9481 ili9468, ili9488 hx8357, or r61581\u003c\/li\u003e\n\u003cli\u003eResolution: 480x320\u003c\/li\u003e\n\u003cli\u003eVoltage: 5V\/3.3V\u003c\/li\u003e\n\u003c\/ul\u003e"}

Displays are one of the best ways to provide feedback to users of a particular device or project and often the bigger the display, the better. For today’s tutorial, we will look on how to use the relatively big, low cost, ILI9481 based, 3.5″ Color TFT display with Arduino.

This 3.5″ color TFT display as mentioned above, is based on the ILI9481 TFT display driver. The module offers a resolution of 480×320 pixels and comes with an SD card slot through which an SD card loaded with graphics and UI can be attached to the display. The module is also pre-soldered with pins for easy mount (like a shield) on either of the Arduino Mega and Uno, which is nice since there are not many big TFT displays that work with the Arduino Uno.

The module is compatible with either of the Arduino Uno or the Arduino Mega, so feel free to choose between them or test with both. As usual, these components can be bought via the links attached to them.

One of the good things about this module is the ease with which it can be connected to either of the Arduino Mega or Uno. For this tutorial, we will use the Arduino Uno, since the module comes as a shield with pins soldered to match the Uno’s pinout. All we need to do is snap it onto the top of the Arduino Uno as shown in the image below, thus no wiring required.

This ease of using the module mentioned above is, however, one of the few downsides of the display. If we do not use the attached SD card slot, we will be left with 6 digital and one analog pin as the module use the majority of the Arduino pins. When we use the SD card part of the display, we will be left with just 2 digital and one analog pin which at times limits the kind of project in which we can use this display. This is one of the reasons while the compatibility of this display with the Arduino Mega is such a good news, as the “Mega” offers more digital and analog pins to work with, so when you need extra pins, and size is not an issue, use the Mega.

To easily write code to use this display, we will use the GFX and TFT LCD libraries from “Adafruit” which can be downloaded here. With the library installed we can easily navigate through the examples that come with it and upload them to our setup to see the display in action. By studying these examples, one could easily learn how to use this display. However, I have compiled some of the most important functions for the display of text and graphics into an Arduino sketch for the sake of this tutorial. The complete sketch is attached in a zip file under the download section of this tutorial.

As usual, we will do a quick run through of the code and we start by including the libraries which we will use for the project, in this case, the Adafruit GFX and TFT LCD libraries.

With this done, the Void Setup() function is next. We start the function by issuing atft.reset() command to reset the LCD to default configurations. Next, we specify the type of the LCD we are using via the LCD.begin function and set the rotation of the TFT as desired. We proceed to fill the screen with different colors and display different kind of text using diverse color (via the tft.SetTextColor() function) and font size (via the tft.setTextSize() function).

Next is the void loop() function. Here we basically create a UI to display the youtube subscribe button, using some of the same functions we used under the void setup() function.

The Adafruit library helps reduce the amount of work one needs to do while developing the code for this display, leaving the quality of the user interface to the limitations of the creativity and imagination of the person writing the code.

Shield for Arduino Uno consisting of a TFT LCD display with 3.5" resistive touch screen, ILI9486 graphic controller, 480x320 pixel resolution, 65,000 colors, white LED backlight, SD card slot and SPI interface. Ideal for creating applications that need to display data, photos and videos. Suitable for interfacing with Arduino Uno, it is also compatible with Fishino, Nucleo, Xnucleo, MAKERUNO and UNO PLUS (see related products).

This small 3.5-inch touch screen module is designed specially for Arduino UNO. This is ideal for DIY anywhere, anytime, and does not require any separate power source or case to hold it. The screen also comes with a stylus to interact with the small screen.

Arduino development boards always help us to build a project easily and make it look more attractive. Programming an LCD with touch functionality may sound like a complicated task, but it can be made very easy by using Arduino libraries and extension modules. In this project, we will use a 3.5" Arduino TFT LCD to build an Arduino touchscreen calculator that can perform all basic calculations such as addition, subtraction, division, and multiplication.

Before we dive into the project, it is important to understand how this 3.5" TFT LCD module works and the model number used. Let"s take a look at the pinout of this 3.5" TFT LCD module.

As you can see, the module has 28 pins and fits perfectly into any Arduino Uno / Arduino Mega development board. The table below gives a description of these pins.

As you can see, the module pins can be divided into four main categories, namely LCD command pins, LCD data pins, SD card pins and power pins, we don"t need to know the details of how these pins work because they will be implemented by the Arduino library.

You can also find an SD card slot on the bottom of the module shown above. This slot can be used to load an SD card with bmp image files, which can be displayed on our TFT LCD screen using the Arduino program.

Another important thing to keep in mind is your interface IC. there are many types of TFT modules on the market from Adafruit TFT LCD modules to cheap Chinese clones. A program that fits an Adafruit expansion board may not be the same for a Chinese expansion board. Therefore, it is very important to know which type of LCD LCD you are holding. This detail must be obtained from the supplier. If you have a cheap clone like mine, then it most likely uses driver IC ili9341. You can follow the official Arduino tutorial to try some basic example programs to get familiar with this LCD.

If you intend to use the touch screen function of a TFT LCD module, it must be calibrated to work properly. An LCD screen that is not calibrated is unlikely to work properly; for example, you may touch in one place and the TFT may think it is touching somewhere else. These calibration results are not the same for all boards, so you will have to do this work yourself.

The 3.5" TFT LCD is a great Arduino expansion board. You can push the LCD directly onto the top of the Arduino Uno and have it match the pins perfectly and slide them in. However, for safety reasons, the programming terminals of the Arduino UNO must use small insulating tape in case the terminals come into contact with your TFT LCD screen. the LCD assembled to the UNO development board looks like the following.

We use the SPFD5408 library to ensure that the arduino calculator code works properly. This is a modified Adafruit library that works seamlessly with our LCD TFT module. You can view the full program at the end of this article.

Now, open the Arduino IDE and select Sketch -> Include Librarey -> Add .ZIP library. a browser window will open to navigate to the ZIP file and click "OK". If successful, you should notice "Library added to your Libraries" in the bottom left corner of your Arduino.

Now you can use the following code in the Arduino IDE and upload it to Arduino UNO to get the touchscreen calculator working. Further down the page, I"ll explain the code in small segments.

As we know, TFT LCD screens can display many colors, all of which must be entered as hexadecimal values. To make it more readable, we assign these values to a variable as shown below.

Okay, now we can move on to the programming part. This program involves three parts. One is to create a user interface for the calculator using buttons and displays. Then, detect the buttons based on user touch and finally calculate the results and display them. Let"s go through them one by one.

Here you can get creative to design the user interface of the calculator. I simply made the basic layout of the calculator with 16 buttons and a display unit. You must build the design as if you were drawing something on an MS drawing board. The added libraries will allow you to draw lines, rectangles, circles, characters, strings and more in any of the preferred colors. You can learn about the available features from this article.

Another challenging task is to detect the user"s touch. Every time the user touches something, we are able to know the X and Y position of the pixel he touched. This value can be displayed on the serial monitor using println, as shown below.

The final step is to calculate the results and display them on the TFT LCD screen. The arduino calculator can only perform two numeric operations. These two numbers are named as variables "Num1" and "Num2". The variable "Number" is given and taken from Num1 and Num2, and the result is obtained.

The process of working with this Arduino touch screen calculator is very simple. You need to upload the following code to the Arduino development board and then power it up. At this point, a calculator will be displayed on the LCD screen.