LCDdisplay

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In this tutorial, you learned how to use the TFT touchscreen LCD display with the ILI9341 driver using an ESP32. This setup is useful for creating dashboards and GUIs for your DIY projects.

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Excellent tuto de Rui SANTOS J’ai utilisé votre programme avec un ecran tft lcd 480 x 320 ili9488 et cela fonctionne tres bien. Par contre, lorsque je veux utiliser la carte sd qui fait partie integrante de l ecran, la partie tactile de l ecran ne fonctionne plus. J utilise la bibliotheque SD.h pour le lecteur de carte. ,Merci si vous pouvez m aidre

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This, and the recent tutorial on the CYD, ‘Cheap Yellow Display’ are great. I’ve been trying to sort this out for a while. Other resources didn’t handle the ‘setup.h’ file at all well and yours just works. For a future tutorial idea, getting started with the CYD and Squareline Studio would be very useful?

Another Guide would be a series of guides with the TFT & WiFi enabled and a simple TX PLC/message control protocal allowing remote ESP 32’s to send say temp data to a central TFT/LCD display and allow the Central TFT to send commands to say ESP 32 4 relay devices and retrieve status basicly creating a multi node Home automation system. (Again I use this in Model Railroading)

The answer is: I’m using the GPIOs from the “Cheap Yellow Display” https://randomnerdtutorials.com/cheap-yellow-display-esp32-2432s028r/ In order to make all my TFT+Touchscreen Guides compatible with a single User_Setup.h config file, I’m constrained to the Cheap Yellow Display pin assignment.

Dear Rui, Very interesting project. As I have a Wemos Di R32 board (Arduino Uno – based) with Esp32 functionality, my question: Can I use and click-on the TFT- screen on my Wemos- board? And how do I have to take care for the 5V/ 3.3V jumper setting on the board? Many thanks for your reply,

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Hi. Yes. It works. We tested it. Unless you’re using a different display or a completetly different ESP32 boarD? Regards, Sara

Can you confirm that the reset pin on the tft needs to be connected to the ESP’s EN pin? The ESP’s EN pin resets the ESP when pulled low, it isn’t used as an output. Can this trace be ignored altogether?

ArduinoTFTscreen

Then, in your Windows PC File Explorer tab enter the sketchbook location path to open the Arduino folder (it’s usually under the Documents folder).

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I have tried the touch support into the TFT_sSPI library and I have not been able to make it work. getTouchRaw function does not return valid values. It is a pity because there is a big bunch of libraries working on TFT_sSPI touch support (for keyboards, push buttons, etc…). Wanting to use these libraries my only option right now is to adapt them to use the XPT2046 touch support…. :-((

As far as I can see, all of your excellent tutorials are written for the Arduino IDE. A very common alternative is VScode. Can you imagine writing tutorials for this IDE as well, or better yet, pointing out the differences. In my opinion, a key difference lies in the handling of the libraries to be integrated. The reason for my question: I was unable to port this tutorial to VScode. When compiling with your customized library there is an error when calling XPT2046_Touchscreen::begin (to many arguments)

I gave up trying to get TFT to work with esp32 so I bout 5″elecrow display same as in your post display & esp32 in one package. Since it seem easier to use with Square line studio to create GUI but I don’t understand how to Read in analog sensor and display on the squareline Gui gauges using this TFT screen if you could do a write-up on it would greatly appreciate it.

Hello, great work and a good help for me. My X and Y coordinates are always displayed, whether I press the display or not. Pressure is always at about 40xx, X-axis jumps somewhere around 200 and Y moves at about 250. When I press on the display I can get the X-value small but never the Y. I already suspected that the display was probably faulty. This is what the output looks like when the display is not touched.

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Learn Raspberry Pi Pico/Pico W with MicroPython​ » The complete getting started guide to get the most out of the the Raspberry Pi Pico/Pico W (RP2040) microcontroller board using MicroPython programming language.

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When it detects that the touchscreen was touched, it will get the (x,y) coordinates and the pressure (z) from the point.

Wire the TFT LCD and touchscreen pins to the following ESP32 GPIOs (you must use these exact pins, otherwise the project will not work).

In this guide, you’ll learn how to get started with the TFT LCD Touchscreen Display with the ESP32 board. This TFT Touchscreen with 2.8 inch display (240×320 px) comes with the ILI9341 driver. This display is a great option to build graphical user interfaces (GUI) for your IoT projects.

It’s definitely not the best pin assignment, but that’s the one I’ll be using to make everything work with the same config file.

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Hi. Can you tell me exactly which board you selected in Tools > Board? And the actual board and display that you were testing? Regards, Sara

As always, excelent post. I had some problems after the first time I uploaded the sketch to my WeMos D1 R32 and my ESP32. The touchscreen was’t working at at all (just wrote some negative values for x and y and the value of z was 4095. I was trying to figure out and then I selected a wrong board (an ESP32S2) and accused an error on the line “SPIClass touchscreenSPI = SPIClass(VSPI);”; then I changed to “SPIClass touchscreenSPI = SPIClass(SPI);” and then I selected the right board and everything started to work like a charm. So, if somebody is having some trouble, this may help. Does it make sense Sara and Rui?

I am using ESP 32 S3 and trying to connect 240*320 2.4 inch TFT SPI screen. I don’t have pin 25, 32, 33 pins on ESP 32 S3. I would be grateful if anyone can suggest alternatives to me

If you prefer to use an ESP32 dev board with a built-in TFT display, read our Getting Started with ESP32 Cheap Yellow Display Board.

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Hello, I have a problem with the ESP32 Dev Kit V1 and the ILI9341. I have made the connections how to connect the GPIOs and installed the new Set_Up correctly. Copied and installed the sketch. I get the numbers of X, Y and Pressure on the display, but they are always the same if I press the display to different positions. Even on the Serial Monitor the numbers are always the same. I also tried with the “OnOff Button” sketch. It draws me the Button on the video but it does not change if I touch or press the display. I don’t know what to do

A great starting point to start playing with the touchscreen display. The instructions and code worked as a charm with a 2.4 display. It would be very interesting to know the available alternatives to display and use pushbuttons, sliders, etc… In any case, thanks very much for your help.

Hello Osmax, Yes, we definitely have many guides lined up for this display… This is just a basic getting started to prepare the libraries correctly and ensure you can run the code with out display

I have checked with a tester the continuity of the wires up to the solder joints above the ILI9341. They are all okay. At this point I think it is a problem with the display. Is this possible? Regards

Open your Arduino IDE and go to Sketch > Include Library > Manage Libraries. The Library Manager should open. Search for TFT_eSPI. Select the TFT_eSPI library by Bodmer and install it.

To properly use the TFT_eSPI library, you need a configuration file called User_Setup.h with the right definitions. We’ve already prepared that file so that you don’t have any configuration issues following our examples. You just need to download it and move it to the right folder. Follow the next instructions to learn how to do it.

IMPORTANT: other User_Setup.h available on the internet will probably NOT work with the examples available at Random Nerd Tutorials. You must use the exact User_Setup.h file provided in this article.

Newhavendisplay

We recommend an ESP32 board that has an on-board TFT display, read our Getting Started with ESP32 Cheap Yellow Display Board – CYD (ESP32-2432S028R)

Ok, because I intend to use ESP32 with 30 pins. I just have one more question. LED is connected in GPIO21. I would like to keep free SDA and SCL to connect sensors. So, how can I change GPIO21 ? Where Do I change this in the code or librarian? Thank you for the attention.

Upload the code to your board. Go to Tools > Board and select ESP32 > ESP32 Dev Module. Then, select the right COM port in Tools > Port. Finally, click the upload button.

It should print the coordinates: (x, y) and pressure (z) in the TFT display. You should note that this is a 240x320px resistive touchscreen.

Note: in some displays, the touchscreen might be upside down, so you might need to set the rotation to 3: touchscreen.setRotation(3);

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Hey please help I am not able to get the output or see anything on my 3.5 inch LCD TFT touch screen display with ILI9341 DRIVER when interfaced with Esp wroom 32 with 38 pin .I tried to make changes in the code by changing the resolution in code to 480 x 320 and many more changes tried trouble shooting . Here are the related documents to support my statement and get a better understanding aboout my components. drive.google.com/drive/folders/1zEo43EpFC_e7ijSBt-KvHDhuR-4aXnAP?usp=drive_link

Please help me solve this issue and print the output in the tft display also. The connections are right as the touch have been detected by the esp 32 and output of the code and part of code is executed and obtained at Serial Monitor. Please Help.

* In the VCC pin, you can either use 5V or 3.3V depending if your J1 connection is open or closed (by default it’s usually open as you can see in the figure below).

🔥 Learn LVGL: Build GUIs for ESP32 Projects​ » Learn how to build Graphical User Interfaces (GUIs) for ESP32 Projects using LVGL (Light Versatile Graphics Library) with the Arduino IDE.

Call the printTouchToSerial and printTouchToDisplay functions to print the touchscreen info in the Serial Monitor and TFT display.

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TFTLCDDisplay

The display we’re using in this guide is the 2.8. inch TFT LCD that also comes with a touchscreen. The display communicates via SPI communication protocol and uses the ILI9341 driver. You can write text, draw shapes, and display images. The touchscreen also uses the SPI communication protocol.

No. It’s the same. If you need to adjust the connections, make sure to modify the code to reflect those changes. Regards, Sara

TFTLCDDisplayfactory

However, you can use any pins for I2C—you don’t necessarily need to use the default ones. Check this tutorial: https://randomnerdtutorials.com/esp32-i2c-communication-arduino-ide/

Raystar is a professional TFT (Thin Film Transistor) module manufacturer. There are different models of our TFT active matrix display with various features.

I hope you do a more longer tutorial like the one you did on ssd1306 oled display , I mean not describing who each chunk of code works but rather explaining each function alone outside of a program (see the tutorial to understand what I am saying)

The 7″ Touch Screen Display is designed to attach to a panel in commercial and industrial environments for convenient viewing wherever needed. With its compact, tamper-resistant design, the 7″ Touch Screen Display is at home in small installations or as part of a multiple display point system in larger operations.

Hi. That’s hard to tell. But, maybe there is something weird with the pinout or the connections between the display nad the ESP32… I’m not sure. Regards. Sara

20:25:44.464 -> X = 198 | Y = 256 | Pressure = 4040 20:25:44.603 -> X = 180 | Y = 259 | Pressure = 4026 20:25:44.728 -> X = 235 | Y = 257 | Pressure = 4029 20:25:44.867 -> X = 192 | Y = 258 | Pressure = 4030 20:25:45.007 -> X = 175 | Y = 256 | Pressure = 4039 20:25:45.097 -> X = 198 | Y = 256 | Pressure = 4029 20:25:45.270 -> X = 198 | Y = 247 | Pressure = 4028 20:25:45.410 -> X = 235 | Y = 257 | Pressure = 4018 20:25:45.499 -> X = 196 | Y = 257 | Pressure = 4034 20:25:45.673 -> X = 196 | Y = 257 | Pressure = 4034 20:25:45.812 -> X = 195 | Y = 257 | Pressure = 4033

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You can choose to view content using the onboard Kiosk App or with Internet browsers such as Google Chrome or Mozilla Firefox.

The TFT LCD touchscreen also comes with an SD card interface if you need to load files for your specific project. This display is also available with different screen sizes.

Yes, sure! On both cases it didn’t work at first and worked later after I made the changed this line. The first war with a “WEMOS D1 R32” (option selected in the Arduino IDE) Board, and in the second time it was a regular ESP32, with 26 pins (and selected the board “ESP32 Dev Module”). The ESP32 driver used is the 3.0.2. But I still think that there is something weird going on with the pins of my display, because sometimes it works everything, and testing now it don’t show the text in the display (yesterday it was displaying everything correctly).

IMPORTANT: other User_Setup.h available on the internet will probably NOT work with the examples available at Random Nerd Tutorials. You must use the exact User_Setup.h file provided in this article.

Glad it worked. First I’ll be covering the standalone LVGL library which is already very powerful, but I’ll consider also using Squareline Studio!

The 7″ Touch Screen Display (P/N DISPLAY-7) is a cost-effective solution for monitoring the modern smart building ecosystem. Its high-definition, capacitive touch screen is the optimal size for use in a wide array of HVAC and IoT applications.

The following code displays a simple text in your TFT display and allows you to test the touchscreen. When you press the touchscreen with your finger or pen, it should print the coordinates and pressure.

Open your Arduino IDE and go to Sketch > Include Library > Manage Libraries. The Library Manager should open. Search for XPT2046_Touchscreen. Select the XPT2046_Touchscreen library by Paul Stoffregen and install it.

The ESP32 communicates with the TFT Display and Touchscreen using SPI communication protocol. We’ll be using the TFT_eSPI and XPT2046_Touchscreen libraries.

After uploading the code to your board, it should display the sample “Hello, world!” text centered at the top. Press the touchscreen with your finger to test it.

Great Guide. Quick question Is there a reason you used the Default SDA (GPIO21) for LED CS? Which presents a Idea for a project using both the TFT touch and a I2C LCD display & a DS18B20 temp sensor. This would be a great learning tool on interfacing multiple diferent I2C devices. Granted using both a TFT and a LCD is not common (I use it in model railroading TFT is the GUI LCD status display) but it does demo multiple I2C nicely.

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This is the only code that actually worked for me. I am using an ILI9486 so I only had to change a couple of settings. I had trouble with finding a setup that included touchscreen settings for the touch pins. Maybe you could write a GUI application using this setup. Anyway thank you for writings this.

2023830 — TFT stands for Thin Film Transistor, which is a type of active-matrix display technology that uses a thin film transistor to control the ...