mcufriend 2.4 tft lcd shield pinout quotation

This note introduces a low-cost Thin Film Transistor (TFT) display to enhance the operation and usefulness of Liquid Crystal Display(LCD) devices. TFT technology controls the pixel element on the glass surface thereby greatly reducing image blurring and improving viewing angles.

The test board chosen for this exercise is the Elegoo Arduino UNO board from the corresponding Super Starter Kit. The kit already has several simple numeric and text displays. The TFT display may perhaps provide better ways to interact in applications.

The controller for the illustrated model of the TFT display is SSD1297.This information is important because the display (owing to its low cost and high popularity) has many different manufacturers who may not leverage the same controller instruction set. The specification of the controller in the coding exercises is examined in the Appendix section of this note.

Of course, the display can be mounted elsewhere and the pins connected to the Arduino directly or indirectly using, for example, a breadboard. Other components can then use the breadboard in lieu of a shield with custom connectors. Of course, without access to such anon-standard or readily available breadboard, it is impossible to illustrate this arrangement in this note.

The output from the diagnostic program, LCD_ID_reading.ino, is shown below:Read Registers on MCUFRIEND UNO shieldcontrollers either read as single 16-bite.g. the ID is at readReg(0)or as a sequence of 8-bit valuesin special locations (first is dummy)reg(0x0000) 97 97ID: ILI9320, ILI9325, ILI9335, ...reg(0x0004) 97 97 97 97Manufacturer IDreg(0x0009) 97 97 97 97 97Status Registerreg(0x000A) 97 97Get Power Modereg(0x000C) 97 97Get Pixel Formatreg(0x0061) 97 97RDID1 HX8347-Greg(0x0062) 97 97RDID2 HX8347-Greg(0x0063) 97 97RDID3 HX8347-Greg(0x0064) 97 97RDID1 HX8347-Areg(0x0065) 97 97RDID2 HX8347-Areg(0x0066) 97 97RDID3 HX8347-Areg(0x0067) 97 97RDID Himax HX8347-Areg(0x0070) 97 97Panel Himax HX8347-Areg(0x00A1) 97 97 97 97 97RD_DDB SSD1963reg(0x00B0) 97 97RGB Interface Signal Controlreg(0x00B4) 97 97Inversion Controlreg(0x00B6) 97 97 97 97 97Display Controlreg(0x00B7) 97 97Entry Mode Setreg(0x00BF) 97 97 97 97 97 97ILI9481, HX8357-Breg(0x00C0) 97 97 97 97 97 97 97 97 97Panel Controlreg(0x00C8) 97 97 97 97 97 97 97 97 97 97 97 97 97GAMMAreg(0x00CC) 97 97Panel Controlreg(0x00D0) 97 97 97Power Controlreg(0x00D2) 97 97 97 97 97NVM Readreg(0x00D3) 97 97 97 97ILI9341, ILI9488reg(0x00D4) 97 97 97 97Novatek IDreg(0x00DA) 97 97RDID1reg(0x00DB) 97 97RDID2reg(0x00DC) 97 97RDID3reg(0x00E0) 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97GAMMA-Preg(0x00E1) 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97GAMMA-Nreg(0x00EF) 97 97 97 97 97 97ILI9327reg(0x00F2) 97 97 97 97 97 97 97 97 97 97 97 97Adjust Control 2reg(0x00F6) 97 97 97 97Interface Control

This post explains about how to display text on TFT lcd using arduino uno? TFT which is used in the tutorial is 2.4′ TFT by Mcufriend. It has ST7781 controller in it, Driver code is ST7783. This 2.4 inch TFT Lcd is arduino compatible. It can easily be mounted on an Arduino uno board. This TFT can be interfaced in 32,16 and 8 bit parallel mode. It also supports I2c Mode. In this tutorial i am going to interface it in 8-bit parallel mode with arduino uno.

Project code is below. I am not using any predefined library for displaying text on TFT lcd, I actually didn’t find any library that can properly display text on the TFT i have, all the libraries through which i have gone through were unable to initialize my lcd driver properly. So i decided to first read the driver of the TFT and then write my own code according to the driver supported commands. I first read the TFT Driver. To learn about how to check the TFT Lcd driver just go through this small tutorial.

After reading the driver of TFT i went through its datasheet. The TFT which i have is working with ST7781 controller, it’s a Chinese manufactured TFT by Mcufriend, their website says that the TFT is working on ILI9321 driver but its not. The information on ther website is misleading everyone, I have seen many posts on internet that talks about the Mcufriend TFT Lcd driver. So if you have a TFT and you are unable to find its driver than go through the above tutorial.

The TFT use in project can easily be mounted on any Arduino board. I mounted it on Arduino uno. You can also use any other Arduino board but for that you have to make changes in the code.

Changing the code is not a hard task if you understand the code written below. Coming to the Code. I first initialized the TFT Controlling pins LCD_RST, LCD_CS, LCD_RS, LCD_WR, LCD_RD. In the Setup function I made the Port-D and Port-B of Arduino Uno as output Port. Since the data pins of TFT is interfacing with Port-D and Port-B of Arduino so to write data and commands to TFT we have to declare Port-D and Port-B as output. Then the function InitializeTFT() is initializing the TFT.

In the Loop function i am filling TFT with colours. Colors are filled in Horizontal and vertical directions. According to the data sheet which says you can display text on TFT in eight directions.

The Code above will fill TFT with colors and the code below is displaying text “www.microcontroller-project.com” on TFT. Try to first understand the above code before moving to the code below. Above code is simply a method to fill the pixels of TFT. If you grabbed the process of filling TFT Pixels than you can display any text on lcd by manipulating the pixels.

Hi community, I"m trying to read the touch screen values of 2.4" TFT display with no success. The display visual tests are running successfully. I have written a small script based on "diagnose_touchpins" example, because I use Wemos Lolin32 board and the pins are different. Here is the code:

Mine have a S6D0154 controller. The library was from "https://github.com/samuraijap/TFTLCD-Library". For Arduino UNO, you need to install both libraries attached, then replace the file "pin_magic.h" from the installation folder "libraries\TFTLCD-Library-master", with the "pin_magic.h" file attached here.

As pointed out in other answers and comments, step one was trying to get a datasheet for this component. I couldn"t find a datasheet for the shield, but here is the link from the vendor I bought it from, and they provided with some articles were they explained how to perform the resistance measure. However, I then noticed the answer was in the example code itself.

Now, by looking at how the shield couples with arduino, we can see that analog pin A2 of the Arduino board, connects with pin labeled "LCD_RS" in the shield, and that pin 8 connects with pin labeled "LCD_D0".

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.

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.

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).

This module is designed to plug directly into Arduino UNO R3 (or its clone) boards. It is compatible with CH340 and Atmega16u2 version boards, as well as Mega 2560. This LCD shield may also work with other boards, but the compatibility can"t be guaranteed.

The2.4 inch TFT LCD Shield Touch Screen Module For 2.4 inch TFT LCD display screenhas excellent vivid colour contrast. This Arduino Uno TFT display is big (2.4″ diagonal) bright (4 white-LED backlights) and colourful (18-bit 262,000 different shades). 240×320 pixels with individual pixel control.

As with all Arduino Shields, connecting to the Arduino is simply a matter of plugging the shield in. Take care to align the pins correctly, and ensure the bottom of the shield does not make contact with the Arduino USB port.

1 Adafruit have disabled old model LCD"s support so please install Adafruit_GFX older version 1.5.3 from Sketch--> Include Libraries --> Manage Libraries.

Er zijn verschillende 2.4″ shields TFT LCD Shields in omloop van MCUfriend.com met diverse aansturende chips, er moet veel uitgeprobeerd worden om te achterhalen welke driver ID er gebruikt wordt.

So this is a hack of the “Adafruit_TFTLCD” library where the ILI9341 initialisation valuse are replace with the values for the lgdp4535 and the library is initalised forced to use the ILI9341.

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.

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.

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.