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Questions tagged [tft]

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A thin-film transistor (TFT) screen

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Displaying Keypad Input on TFT Display

For a project of mine I have always wanted to build an electronic load and I am mostly done. However I have found myself stuck at one part that I thought would be simple but has thus only caused ...
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1answer
46 views

How to create and edit fonts for the Adafruit GFX library?

I noticed that the TomThumb.h font included in the Adafruit GFX library has characters that have different widths, which is a problem for me because I'm doing text processing that requires characters ...
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Arduino UTFT Touch align RIGHT with margin

I am using a TFT Touch screen on an Arduino Mega, with UTFT and UTouch libraries. When I use the code below, the text is aligning to right, all the way to the edge of the screen. Is it possible to ...
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31 views

How to interface DS Lite Touch Screen with Arduino

I recently tore down my old DS Lite which wasn't working. The screens and speakers were still functional, so I decided to mess around with it. I have a working DS touch screen and an Arduino Uno. How ...
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2answers
47 views

Ethernet Shield Not Working With TFT Screen

I'm trying to stack up Arduino UNO, Ethernet Shield and Waveshare 2.8" TFT Shield. Since I'm new to this I'm mostly doing basic stuff. I successfully manage to get ethernet shield and TFT shield to ...
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32 views

Adafruit 2.8 TFT LCD Touchscreen 4 wire pins - unclear instructions

Warning - Noob question I am trying to follow the instructions provided by the vendor https://learn.adafruit.com/2-8-tft-touch-shield/touchscreen-paint-example to no avail. Specifically: We ...
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2answers
111 views

Slow refresh rate of 1.8 TFT display

I have 1.8 TFT display for Arduino Nano and it changes color very slow. When I try to change the color of the whole screen I see how it changes color line by line. I use "Adafruit GFX graphics core" ...
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46 views

Generate & Display QR using Nodemcu on TFT Display ST7789 240*240

I have NodeMCU & ST7789 TFT display. I want to generate QR Code of any dynamic input and display it on my TFT display. Not able to find any suitable reference. All Standard QR code libraries only ...
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38 views

Arduino TFT LCD Data Logger

Can I use Arduino TFT LCD Module ILI9341 as a data logger? It has an SD card slot at the back, I wonder if the data will be saved on the SD card? Thanks!
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36 views

Leonardo doesn't have enough memory to run a TFT and handle MIDI messages

So, I got a Leonardo because I plan to build a device to draw MIDI CC curves on a touchscreen TFT to be sent over MIDI to a DAW. I'm in the initial testing stage, and got a basic Paint application to ...
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1answer
105 views

Use JYETech 2.4 Inch LCD Display Screen Module with Arduino?

I have this JYETech 2.4 Inch LCD Display Screen Module that I would like to use for a project I have in mind, however, I'm not sure how to wire it up with my Arudino Mega. Here is the datasheet for ...
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1answer
1k views

Increase or decrease the brightness of Nextion display

I have a nextion display. I want to implement this issue of it. Start the program. If for example I don't touch the display for 15seconds, it should to turn off its brightness. If I touch the screen ...
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1answer
126 views

Menus not changing when button is pressed TFT 128 x 128

I've just followed a tutorial so that when a button is pressed it goes through a menu. Click once, next slide. Only issue is it isn't appearing on my screen at all. It has uploaded but I'm a total ...
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1answer
282 views

How to make a custom character on a TFT LCD display? (128x128)

I'm currently using the ucglib library. I'm new to arduino and I'm wanting to simply display a lcd smiley I made with the byte generator. I still have some of the original 'font hello world' stuff ...
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167 views

TFT ST7735 Library - Can't Display Bitmap

Using a cheap Chinese ST7735 type 128x160 display with the TFT_ST7735 library (https://github.com/Bodmer/TFT_ST7735). I'm using an Arduino Mega 2560, hardware SPI. Example works perfectly, ...
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36 views

TouchScreen GUI Reference Guide Help

Recently I have gotten some Touchscreens to add to my projects and I am very excited to use them. However, I am not sure where I can find a guide to help me create my own GUI with the touchscreens. ...
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68 views

Why does my TFT keep turning white after moments?

Alright, seems there is something wrong I am doing that I don't understand. Before I start explaining, my question is different than this white screen question. First of all my TFT ST7735 is working ...
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1answer
706 views

Why am I only seeing white screen in TFT 1.44 ST7735?

I just bought the 3rd TFT and in all my attempts I get the white screen I don't know what I'm doing wrong! This time I bought it and followed their instruction's guide I created this schematic ...
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58 views

Arduino 3.5" TFT Display going blank after sending data through I2C

I'm trying to use I2C to send and receive commands between an Arduino UNO R3 and an Arduino Mega R3, with a 3.5" TFT display connected to the Mega. I have verified that my display is fully functional ...
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44 views

problem with char array iteration and strcmp

New to Arduino and programming so forgive me if this is trivial but I've searched and can't find an answer... Goal: I want to convert decimal values to their equivalent fraction... eg: 0.125=1/8. I ...
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326 views

What am I missing? ST7735 TFT white screen

I followed this guy's guide with regards to wiring, etc., and all I seem to be getting is a white screen, as shown in these pictures. Is there an issue with the guy's guide, I'm missing or there is an ...
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40 views

Is there software to make an interactive GUI for my TFT touch screen shield?

I was wondering this, because realized it takes quite time consuming due to all the lines of code I have to write.
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2answers
396 views

Connecting TFT Display MI0283QT-9A to ESP32

I have purchased a MI0283QT-9A TFT display (https://download.mikroe.com/documents/add-on-boards/other/display/tft-proto/tft-proto-manual-v200.pdf) which is driven by the ILI9341 display controller. I'...
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2answers
827 views

Arduino NANO hardware SPI not working

I have an Arduino NANO clone and a 2.4" ILI9341 TFT display. The VCC and LCD pins of the display are connected to the 5V pin of the board. The GND to the GND. All the logic pins are connected to ...
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1answer
364 views

Can a push button be used for TFT LCD screens?

I am trying to link my TFT LCD touch screen to a few push buttons. May I enquire why my code is not working? I'm trying to link the screen and the button so I'm trying to make the image display a ...
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1answer
140 views

Using TFT with hardware SPI and speaker with tone()

I want to make a device with a TFT screen and a speaker that uses the builtin tone() function. However, according to the documentation, using tone() interferes with PWM on pins 3 and 11. On the ...
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1answer
238 views

How to connect 2 Arduino Unos when one has a TFT LCD display attached to it? [duplicate]

I have to make a school project involving an Arduino Uno with a 2.8" TFT LCD touch screen display. in my project, i have to connect it such that the display is linked to a LED push button that receive ...
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1answer
86 views

listing sd card files on a tft screen

I'm currently working on a Arduino project that plays audio files from SD card through a speaker. First Arduino sends the list of all music files, and when I send it a file name, the music is played. ...
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1answer
1k views

Using Waveshare Raspberry Pi TFT LCD with Arduino Uno

I have a 3.5 inch Waveshare Raspberry Pi TFT LCD which uses the XPT2046 Touch Controller. I want to use this LCD screen with my Arduino Uno. I originally believed something like this was impossible, ...
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142 views

Nextion controlling Neopixel

I am looking to control an addressable LED Strip (WS2812B) mode via a Nextion display. Below is a short version of my code. CODE ////////////////////////////// // LED LIGHT SHOW PRESETS // ////////...
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2answers
4k views

Nextion Dual State Button

I am having an issue with my Nextion display. I have uploaded the following code via Arduino IDE to my Arduino MEGA 2560. My Nextion Editor shows the button as ID:9 on page0 named floor. I am not ...
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1answer
564 views

Background “static” on side of TFT screen?

I recently bought an XC4629 128x128 TFT screen and noticed that failing to initialise a background for the screen produced this RBG static. A red line drawn on the screen without a background: The ...
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2answers
498 views

How to expand an Arduino when using a TFT display shield?

I am really new to this Arduino stuff. I can't figure out one of my problems on my own. I am using this 2.4 TFT display shield on an Arduino Uno. It works fine so far: I have coded a little sketch ...
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1answer
392 views

Using TTGO TS 1.0 TFT display

I'm trying to use the TTGO TS 1.0 display with a demo app from a different source. The demo app wants the following to be configured: #define PIN_NUM_MISO 17 // SPI MISO #define PIN_NUM_MOSI 23 ...
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1answer
610 views

How to connect a 240x320 37-pin TFT to an Arduino Nano?

I have an old TFT display (extracted from an MP5 player) and I can't figure out how to connect it with an arduino nano, pls help. here's the datasheet of the TFT: http://read.pudn.com/downloads137/...
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1answer
2k views

Wiring parallel TFT with ESP32

I have this Parallel LCD TFT. I want to connect it with an ESP32 (NodeMCU). I am using the TFT_eSPI library. In the TFT_eSPI documentation, it says that the connection should be as following: // The ...
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1answer
2k views

Connecting LCD TFT shield to NodeMCU

I have the following screen: I want to connect it to a NodeMCU device: I read somewhere that it is not possible. However, I am not interested in the touch ability nor the SD card. I just want to ...
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80 views

Can I make my own TFT LCD shield? [duplicate]

I have a few TFT LCD displays lying around which I salvaged from old phones. I would really like to use them with my Arduino. I didn't get anything about making a shield on the net but only links to ...
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2answers
593 views

How to detect an read buttons pressure on touchscreen [closed]

I made simple 3 red buttons like this: #include <SPI.h> #include "Adafruit_GFX.h" #include "Adafruit_ILI9341.h" #include "URTouch.h" #define TFT_DC 9 #define ...
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2answers
474 views

ILI9341 backlight flickers when using USB power from Laptop

I've developed a project using am ILI9341, ESP12F and Arduino. Everything works fine except a very annoying issue. The LCD flickers when I use the laptop's USB. But when I use a USB charger it's much ...
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0answers
786 views

Programming 5 inch TFT Display + Arduino Mega with Touch Shield (w/SSD1963)

I am newbie on Arduino and TFT Screens. But I am a semi-professional on programming and I decided to develop a device that can be controlled by Arduino via capacitive touch screen (there will be 2 ...
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2answers
4k views

Multiple devices on SPI

Whenever I use multiple devices on SPI, TFT Screen, and the BME280 breakout board from Adafruit, the Arduino fails to detect the devices. Code of the screen separately (works) // include the ...
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574 views

2.8" TFT display without D/C pin

I got a TFT display module from China. The TFT does not has D/C pin, how could I connect TFT to UNO or which library should I need to use?? Here is the pin name print on PCB: VCC TFT_CS SDI (SDA) ...
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1answer
2k views

5 inch TFT LCD for Arduino

I want to use a 5 inch 800x480 TFT display (touch not needed) with an Arduino (mega, uno or due). I'm thinking of buying this display: link (buydisplay.com). How can I connect this ? I have also ...
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2answers
2k views

How to measure resistance of TFT Touchscreen

I'm using a TFT Touchscreen shield with my Arduino UNO, and I'm running "tftpaint" example by Adafruit. I've noticed that when initializing the Touchscreen object, a resistance value must be provided....
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2answers
3k views

mcufriend 2.4 TFT with ESP8266

I have this TFT: Now, the problem is, I will not use this as a shield (i.e. I will not just put it on top of an Arduino Uno). I will use it with an ESP8266 (NodeMCU). I want to know how to wire them ...
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1answer
83 views

Drawing specific RGB on touch screen

I have the Arduino MEGA and an adafruit touch screen 2.8 inches. My goal is to draw a pixel given a specific RGB I am using the ILI9341, GFX, and TFT.h libraries to draw and control the touch screen....
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1answer
89 views

2.8 Touchscreen does not work with Proto Screw Shield

I am using the Arduino Mega and the 2.8 touch screen by Adafruit, and I can't get the screen to work on my Proto R3 Screw Shield Here are the tools I am using: 2.8 inch touch screen Proto R3 Screw ...
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1answer
122 views

Drawing bitmap on TFT

So, my .ino file is like this (do not worry about TftDisplay library, it totally works fine and myDrawPixel function just calls the adafruit drawPixel function): #include "TftDisplay.h" #include <...
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1answer
3k views

ST7735 display with esp32

I have edited the adafruit ST7735 library so that it supports esp-32.I made some edits in Adafruit_ST7735.h file. which are as follows. The code works fine but I had expected the screen to work ...

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