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Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (2.8" diagonal) bright (4 white-LED ...

The LCD is designed for use with an Arduino Uno. When I plug the sucker into my Mega I can"t get the "Arduino_TFT_Tutorial_Example_01" let alone the "graphicstest" codes to generate anything on the LCD. I believe I have all the recommended libraries for the LCD shield (although the recommendations assume I am using an Uno). All I get is the same lit up white screen before and after uploading.

I don"t have too much experience with the mega and I am not too crafty with the LCD yet so any info/suggestions are much appreciated. Not sure if this is an easy fix or a stretch.

Thank you for your interest. I have now attempted to provide you with all the info that I have – including photos. The wiring shown in them is not very clear but I have listed under here all the Adafruit instructions I followed (many times) and guarantee that the wires connect what they should! The screen is folded back so that you can see the wires.

• CLK connects to SPI clock. On Arduino Uno/Duemilanove/328-based, thats Digital 13. On Mega"s, its Digital 52 and on Leonardo/Due its ICSP-3 (See SPI Connections for more details)

• MISO connects to SPI MISO. On Arduino Uno/Duemilanove/328-based, thats Digital 12. On Mega"s, its Digital 50 and on Leonardo/Due its ICSP-1 (See SPI Connections for more details)

• MOSI connects to SPI MOSI. On Arduino Uno/Duemilanove/328-based, thats Digital 11. On Mega"s, its Digital 51 and on Leonardo/Due its ICSP-4 (See SPI Connections for more details)

NOTE: Elsewhere is says that for the mega we should use Pin 53 but in graphicstest software it defines pin 10. To be safe I have tried both pin 10 and Pin 53 and modifying the define entry. Neither worked. Note also that the instructions refer to “SS” but we do not have a “SS” so I assume that this is “CS”. Further note – also connected are four touchscreen leads; I have tried it both with and without these connected. All above DONE! – thousands of times! Install Arduino Libraries. We have example code ready to go for use with these TFTs. It"s written for Arduino, which should be portable to any microcontroller by adapting the C++ source.

Three libraries need to be installed using the Arduino Library Manager…this is the preferred and modern way. From the Arduino “Sketch” menu, select “Include Library” then “Manage Libraries…”

Upload the graphicstest sketch to your Arduino. You may need to press the Reset button to reset the Arduino and TFT. You should see a collection of graphical tests draw out on the TFT.

If you"re having difficulties, check the serial console.The first thing the sketch does is read the driver configuration from the TFT, you should see the same numbers as below

If you did not connect up the MISO line to the TFT, you wont see the read configuation bytes so please make sure you connect up the MISO line for easy debugging! Once its all working, you can remove the MISO line

Add some jazz & pizazz to your project with a color touchscreen LCD. This TFT display is big (2.8" diagonal) bright (4 white-LED backlight) and colorful! 240x320 pixels with ...

C:\Users\user\OneDrive\Documents\Arduino\libraries\Adafruit_TFTLCD_Library\Adafruit_TFTLCD.cpp: In member function "void Adafruit_TFTLCD::begin(uint16_t)":

C:\Users\user\OneDrive\Documents\Arduino\libraries\Adafruit_TFTLCD_Library\pin_magic.h:533:12: warning: large integer implicitly truncated to unsigned type [-Woverflow]

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flashcards, and modes are 3.3V-only, many makers find that they need to perform level ...

I can do the soldering if I have to. I also agree that the TFT should be mounted on the Mega. I can hardwire this shield and mount it remotely if I need to.

I have connected the motor shield to the Mega and confirmed correct operation of a piece of example code and then manually connected all the digital pins except 13. I also connected +5V and 0V for power and it sort of works but not correctly. just vibrates the stepper motor and moves a little bit where it should do a full revolution as part of the test code.

I compared the serial values that are printed between the previously mentioned NANO connected to this display with hardware SPI and default SD library compared to the exact same display and SD card connected to a MEGA and using the SDFat.h file. I am including that serial output here:

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.

This library has a selection of files that were copied from a contributer by the name of materone, and the file structure has been reorganized slightly. Here is a link to materone"s repository: https://github.com/materone/ILI9341-Arduini-Mega2560-Lib

Adafruit Industries is the original creator of this library (see Adafruit information below for more details). Here is a link to Adafruit"s repository: https://github.com/adafruit/TFTLCD-Library

As Adafruit states below, the Adafruit_GFX library is required and can be found at https://github.com/adafruit/Adafruit-GFX-Library , but it is IMPORTANT to note that compilation errors may occur with versions later than 1.5.3. Installing version 1.5.3 can be done within the Arduino IDE by going to Library Manager, searching for "Adafruit_GFX_Library" and installing the proper version.

https://github.com/Alftron/Touch-Screen-Library is a library that can also be associated with this touch screen module. This library is a fork that originally descended from https://github.com/adafruit/Adafruit_TouchScreen with fixes and additions from both Jeroi and then Alftron.

To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder Adafruit_TFTLCD. Check that the Adafruit_TFTLCD folder contains Adafruit_TFTLCD.cpp and Adafruit_TFTLCD.

Place the Adafruit_TFT library folder your /libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE

I am trying to make a truly Universal Remote Control out of this mess. I just got the Arduino Uno & the Display and put it together and there are NO pins left to operate an IR LED.

Hello,please post our code also ..the screen driver must be known and that info must be known in order to get these things to work correctly..you show your code and then the vid blurs..Someone needs to write a pdf teaching how ,what ,when and why concerning these screens I would gladly pay $10.00 and I am sure others would too.I have 3 different tftlcds only 1 works its for the mega and Bomer has a lib for it,I am really considering use of Nextion units from now on 4 pins easy programming but higher cost...also the small cell phone screens use spi mode and are real easy to set up and use

The program runs and nothing is displayed but a white screen. when I open the COM4 I see that when I hit the screen numbers appear to calibrate the screens position so it is registering but not showing up on the LCD. please help me before I pull all my hair out.1

Is there any way, with an UNO, to add other I/O, given all the pins are used/covered, and none are brought through? I"d like to interface a 5-pin joystick. Is the only answer "buy a Mega"?ReplyUpvote

I"m thinking I need an Arduino Mega to do what I want - a Universal Remote. Because after mounting the display there are NO pins left for anything else.0

I"m having issues getting this display to work on my Arduino 101 board with the libraries that are suggested - errors in compiling seem to indicate that the board type isn"t supported in the Adafruit_TFTLCD library. Here"s a representative error:

I finally got the touchscreen to work correct using your links to the libraries. Found out that this specific TFT display module uses pin 6 & 7 for touch sensor, instead of the standard 4 & 5.0

I never received a response on this, so went through the painful process of copying code from the video. It can be found here for others that might need it. Not that this has some minor changes, but is fully functional and I will continue to refine: https://github.com/siliconghost/Arduino_2.8in_TFT_wSD

In this guide we’re going to show you how you can use the 1.8 TFT display with the Arduino. You’ll learn how to wire the display, write text, draw shapes and display images on the screen.

The 1.8 TFT is a colorful display with 128 x 160 color pixels. The display can load images from an SD card – it has an SD card slot at the back. The following figure shows the screen front and back view.

This module uses SPI communication – see the wiring below . To control the display we’ll use the TFT library, which is already included with Arduino IDE 1.0.5 and later.

The TFT display communicates with the Arduino via SPI communication, so you need to include the SPI library on your code. We also use the TFT library to write and draw on the display.

The 1.8 TFT display can load images from the SD card. To read from the SD card you use the SD library, already included in the Arduino IDE software. Follow the next steps to display an image on the display:

In this guide we’ve shown you how to use the 1.8 TFT display with the Arduino: display text, draw shapes and display images. You can easily add a nice visual interface to your projects using this display.