Questions tagged [tft]

A thin-film transistor (TFT) screen

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5
votes
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....
5
votes
2answers
2k views

Which tft works on both Arduino Uno and Raspberry pi

Ideally I'd like a 2.8 inch and it to be touch screen. But most of all I'd rather it work on both boards without much hassle.
4
votes
0answers
820 views

Arduino UNO with NRF24l01 + touch screen [closed]

I have an Arduino UNO, a NRF24L01 as receiver (receive data from elsewhere), and this touch screen from Adafruit for display and control. The Adafruit TFT is a shield so it fits the UNO perfectly. ...
3
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5answers
15k views

How to dim background LEDs on TFT display with ILI9341

I have bought a 2.5" TFT shield online, which is equipped with the ILI9341 controller. I need to dim the intensity of the background LEDs to match ambient light. This particular shield does not ...
2
votes
2answers
500 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 ...
2
votes
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 ...
2
votes
1answer
4k views

Arduino Video player?

I want to play video from SD card by using arduino mega 2560 and TFT 3.2" touch screen is it possible ? if yes please tell me. thanks in adavance
1
vote
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 ...
1
vote
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 ...
1
vote
2answers
831 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 ...
1
vote
1answer
72 views

TFT screen to change sketches

I have an Uno + WiFi 101 thermometer and I'd like to be able to take it places and easily change WiFi network SSIDs and passwords. Can I use a TFT screen to make these changes to a sktech or am I ...
1
vote
0answers
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 ...
1
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0answers
84 views

Bug read an image from SD card and draw it on TFT

I have developed a code to read an image stored on my SD Card and display it on a TFT. I can read the image from the SD Card successfully but I cannot draw it on the TFT. I dunno where is the bug. ...
1
vote
1answer
3k views

Connecting multiple TFT panels to Arduino Uno via SPI?

Is it possible to connect more than one TFT screen (like this one or similar: https://www.adafruit.com/products/1651) to an Arduino Uno? I'm wanting to connect and control two color screens at once; ...
1
vote
0answers
55 views

Esplora: Connecting a 2-Wire Speaker to Arduino Esplora

I am currently trying to make a simple game system with my Arduino Esplora, however I have noticed something. The Arduino Esplora has no pins for a 2-pin speaker that I get from a RadioShack store (...
1
vote
0answers
72 views

Looking for hardware - 3.5" TFT with capacitive touch

I'm looking for a 3.5" display (480x320) with a capacitive touch attached. Anyone have some experiences? I want to drive the display with 8bit. If there are existing libraries that would be highly ...
0
votes
2answers
51 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 ...
0
votes
2answers
114 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" ...
0
votes
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. ...
0
votes
1answer
709 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 ...
0
votes
2answers
397 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'...
0
votes
2answers
596 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 ...
0
votes
2answers
477 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 ...
0
votes
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 ...
0
votes
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....
0
votes
1answer
286 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 ...
0
votes
1answer
142 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 ...
0
votes
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, ...
0
votes
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 ...
0
votes
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 ...
0
votes
1answer
155 views

I just bought a TFT screen is it still possible to use the serial port 1 and 0?

so I have a question regarding the TFT touch screen... I would like to use the serial ports 1 and 0 (on my UNO) to transmit data to my mega... however it take up those ports. on the back of it, it ...
0
votes
1answer
3k views

ESP8266 Arduino 2.2inch ILI9341 TFT library

I recently got one TFT LCD from aliexpress which supports SPI and uses ILI9341. This is the one.TFT LCD I have the ESP8266 EspressoLite 1 board, and I am using ESP8266 Arduino. (https://github.com/...
0
votes
0answers
18 views

Output of mlx90614 to mcufriend tft/lcd, not getting displayed

Newbie here !! Im trying to display the output of my MLX90614 sensor on mcufriend tft display (with arduino UNO). But unable to do so. I can only see the TFT being lit to white color, text -> "Target" ...
0
votes
0answers
38 views

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 ...
0
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0answers
19 views

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 ...
0
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0answers
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 ...
0
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0answers
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 ...
0
votes
0answers
48 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 ...
0
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0answers
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!
0
votes
0answers
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 ...
0
votes
1answer
107 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 ...
0
votes
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 ...
0
votes
0answers
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, ...
0
votes
0answers
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. ...
0
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0answers
69 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 ...
0
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0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
327 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 ...
0
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0answers
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.
0
votes
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 ...