3.5 tft lcd shield for arduino uno mega ili9481 price

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).

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.

That’s it for this tutorial guys, thanks for reading. If you made some cool projects based on this or you just want to ask questions about this tutorial, feel free to reach out via the comment section below.

Hey guys, its Nick again, welcome once again to educ8s.tv a channel that is all about DIY electronics projects with Arduino, Raspberry Pi, ESP8266 and other popular boards. Today we are going to look at how to drive the low cost, big, Arduino 3.5″ Color TFT display. At the end of this tutorial, we would have learned how to use this interesting display with the Arduino Uno and Mega boards.

The display is quite big and offers a resolution of 480×320 pixels. It is based on the ILI9481 TFT driver, comes with an SD card slot at the back and it is pre-soldered with pins for easy mount on the Arduino Uno, which is nice since there are not many big TFT displays that work with the Arduino Uno.

Few weeks ago, I discovered this Arduino 3.5″ Color TFT display on Banggood.com and thought it will be useful in some of our projects because of its size and its low price. The price of the display is very low for such a big display, it costs 10$ and banggood.com were kind enough to send me a sample unit in order to test it and share my opinion about it with you.

As shown in the video, we will be performing simple tasks with the display to demonstrate how it works and how you can integrate it in your project. I will be performing demos such as showing how Images stored on an SD card and inserted into the SD slot of the display can be shown on the display.

Connecting the module to the Arduino is very easy. Since the module comes in a shield form, all we need to do is to snap it onto the top of the Arduino Uno as shown in the image below.

One of the few downsides to this display is the amount of the Arduino pins it uses. If we don’t use the SD card slot, we will be left with 6 digitals pins and one analog pin which can be connected to other modules or sensors. but when we use the SD card module part of the display, we will be left with just 2 digital and one analog pin which at times limits what we the kind of project for which we can use this display but fortunately, this display is also compatible with the Arduino Mega board which offers many more digital pins to work with, so when you need extra pins, and size is not an issue, use the mega. Unfortunately, this display does not work with some other Arduino Uno form factor based boards like the Arduino Due or the Wemos D1 ESP8266 board due to pin compatibility and library Issues. The Wemos D1, in particular, has just one analog pin and the display requires 5.

To use this display, we will need the libraries which can found on the product page on banggood.com. All we have to do is to install the library and load any of the examples that are designed for this shield. Since the display uses the familiar Adafruit libraries, we can easily build several impressive projects. I have developed a simple program just to demonstrate how easy it is to use the display thanks to the Adafruit libraries! It uses some of the basic functions in order to display text and simple graphics. You can download the code of this simple example for the Arduino 3.5″ Color TFT display by clicking on the download link below or by clicking on the link in the description of the video.

With this done, we then write the void setup() function. To begin we clear the LCD of previous settings, then set the type LCD we are using via the LCD.begin function. With this done, we set the rotation of the TFT and proceed to fill the screen with different colors.

That’s it for today’s tutorial guys, thanks for reading/watching. If you get stuck at any point while building this project, feel free to reach out to me via the comment section, I will be glad to answer whatever questions you might have. Don’t forget to share, like and subscribe on youtube. Thanks!

Only US$14.99, buy best 3.5 inch tft color display screen module 320 x 480 support uno mega2560 geekcreit for arduino - products that work with official arduino boards sale online store at wholesale price.

It appears to me that there is no backlight control, either through software or hardware. Neither is there a comprehensive schematic for either the screen part or for the circuit board. The controller chip, the ILI9481 does, however, appear to be well documented.

Before I start experimenting and unsoldering pins etc to see what happens, I"d be happy to hear from anyone who has any comments about this or the best way to proceed.

I also found this picture which appears to imply you may be able to make a neater job by making 2 cuts on the board without disturbing the 24 pin connector. Cut the 2 visible traces to connector pin 1 at the point above the "1" on the silk screen and to the left of the chevron "<" then make your connection to the pad of the connector. Before making the connection, check with a meter (or by confirming that the back light no longer works) that pin 1 is really then isolated from the ground plane.

I just reloaded/reran the "Bodmer_UTFT_Demo_480x320" sketch - I had to rotate the due/tft 180degrees but text is printing correctly so clearly I"m having one of those moments...

With the screen orientated correctly for the demo sketch above my bitmaps are loading upside down! (they were right way up on a ILI9486 display which is what has thrown me). I can rotate those and reload but i"ll then need to also either invert the calculation of Y axis values (GFX has 0,0 in the top left corner, normal convention is bottom left).

I purchased a shield with the description 3.5" TFT LCD Shield for Arduino Uno/Mega (ILI9481) recently from here 3.5" TFT LCD Shield for Arduino Uno/Mega (ILI9481) - Electronics Display LCD Graphic - Boxtec Onlineshop.

I have used the library MCUFRIEND_kbv.h and it generally appears to work using a sketch based on a supplied example for printing text. The problem is only that the sketch reports a display resolution of 240x320 which differs from the advertised specification.

The obvious conclusion is that there is an error in the specification from the supplier, but could there be another explanation ? 320x420 is anyway an unusual resolution and I am wondering if I can actually get up to 320x480 which the ILI9481 driver appears to support.

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TFT LCDs are the most popular color displays – the displays in smartphones, tablets, and laptops are actually the TFT LCDs only. There are TFT LCD shields available for Arduino in a variety of sizes like 1.44″, 1.8″, 2.0″, 2.4″, and 2.8″. Arduino is quite a humble machine whenever it comes to process or control graphics. After all, it is a microcontroller platform, and graphical applications usually require much greater processing resources. Still, Arduino is capable enough to control small display units. TFT LCDs are colorful display screens that can host beautiful user interfaces.

Most of the smaller TFT LCD shields can be controlled using the Adafruit TFT LCD library. There is also a larger TFT LCD shield of 3.5 inches, with an ILI9486 8-bit driver.

The Adafruit library does not support the ILI9486 driver. Actually, the Adafruit library is written to control only TFT displays smaller than 3.5 inches. To control the 3.5 inch TFT LCD touch screen, we need another library. This is MCUFRIEND_kbv. The MCUFRIEND_kbv library is, in fact, even easier to use in comparison to the Adafruit TFT LCD library. This library only requires instantiating a TFT object and even does not require specifying pin connections.

TFT LCDs for ArduinoUser interfaces are an essential part of any embedded application. The user interface enables any interaction with the end-user and makes possible the ultimate use of the device. The user interfaces are hosted using a number of devices like seven-segments, character LCDs, graphical LCDs, and full-color TFT LCDs. Out of all these devices, only full-color TFT displays are capable of hosting sophisticated interfaces. A sophisticated user interface may have many data fields to display or may need to host menus and sub-menus or host interactive graphics. A TFT LCD is an active matrix LCD capable of hosting high-quality images.

Arduino operates at low frequency. That is why it is not possible to render high-definition images or videos with Arduino. However, Arduino can control a small TFT display screen rendering graphically enriched data and commands. By interfacing a TFT LCD touch screen with Arduino, it is possible to render interactive graphics, menus, charts, graphs, and user panels.

Some of the popular full-color TFT LCDs available for Arduino include 3.5″ 480×320 display, 2.8″ 400×200 display, 2.4″ 320×240 display and 1.8″ 220×176 display. A TFT screen of appropriate size and resolution can be selected as per a given application.

If the user interface has only graphical data and commands, Atmega328 Arduino boards can control the display. If the user interface is a large program hosting several menus and/or submenus, Arduino Mega2560 should be preferred to control the TFT display. If the user interface needs to host high-resolution images and motions, ARM core Arduino boards like the DUE should be used to control the TFT display.

MCUFRIEND_kbv libraryAdafruit TFT LCD library supports only small TFT displays. For large TFT display shields like 3.5-inch, 3.6-inch, 3.95-inch, including 2.4-inch and 2.8-inch TFT LCDs, MCUFRIEND_kbv library is useful. This library has been designed to control 28-pin TFT LCD shields for Arduino UNO. It also works with Arduino Mega2560. Apart from UNO and Mega2560, the library also supports LEONARDO, DUE, ZERO, and M0-PRO. It also runs on NUCLEO-F103 and TEENSY3.2 with Sparkfun Adapter. The Mcufriend-style shields tend to have a resistive TouchScreen on A1, 7, A2, 6 but are not always in the same direction rotation. The MCUFRIEND_kbv library can be included in an Arduino sketch from the library manager.

The 3.5-inch TFT LCD shield needs to be plugged atop the Arduino board. The Mcufriend-style shields are designed to fit into all the above-mentioned Arduino boards. The shields have a TFT touch screen that can display colorful images and interfaces and a micro SD card reader to save images and other data. A 3.5-inch TFT LCD touch screen has the following pin diagram.

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This 3.5 inch TFT LCD is based on the ILI9481 LCD driver and gives a very sharp/nice picture quality and works amazing well with Arduino Uno and Arduino Mega Microcontrollers. Unfortunately this display is not a touchscreen display, however it makes it up with the included MicroSD Card Slot. No soldering, no wiring, no fuss just plug and play!