Questions tagged [tft]
A thin-film transistor (TFT) screen
92
questions
1
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0answers
33 views
Possible way to interface a TFT touch panel with Arduino [duplicate]
I have a salvaged 40-pin TFT touch panel, and I am trying to see if I can control it with an Arduino. What are my chances of getting a driver for it ? I bought a RA8875 Driver Board from Adafruit, but ...
1
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2answers
42 views
LCD TFT 2.4"" changes the values of analog read of Arduino Mega
I have a Arduino Mega with LCD TFT 2.4"" with reading 5v signal on A8 pin (Arduino mega pin) from a raspberry pi (just to test). They are grounded together. When the Arduino is without the ...
1
vote
0answers
53 views
2.4" TFT LCD is only showing white screen, but the touch functions still work
Hi (Sorry for the long post).
The other day I finally found a code that worked on my standard 2.8" TFT LCD by Simkeim, but then I pressed the bottom left corner too hard and the screen went white....
1
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2answers
62 views
Using the touchscreen.getpoint causes program to instantly crash
this code runs fine until I add in the if statement surrounding the draw screen() method. upon clicking the screen, the program instantly crashes, turning the screen white. any help would be ...
1
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0answers
28 views
Driver configuration not showing the right numbers on the Graphics Test example's serial monitor for Adafruit IlI9341 library
I have a 2.8" Color TFT Touchscreen from Adafruit, and I'm currently trying to set it up. I've been following this guide to set up the screen. The screen powers on when connected to power, but it'...
1
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0answers
38 views
How to avoid two arduino components using the same digital PIN [duplicate]
I'm trying to build an Arduino project where it involves a TFT and an ethernet W5500 component.
Here's the project I want to build to learn Arduino. However I wanted to change the board that already ...
1
vote
1answer
34 views
WDT ISR not called when SPI ST7789 module initiated
Using the .init function for the ST7789 TFT screen prevents my WDT ISR from firing. What explains this behaviour, and is there something I can do? Any other timer ISR I could use instead?
#include <...
1
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0answers
53 views
anyone heard of MCUDEV_TFT1.44 display? I can't figure out how to connect it to Arduino
I bought this tft display on Aliexpress:
https://www.aliexpress.com/item/1005001579367288.html?spm=a2g0s.9042311.0.0.72164c4doyqAub
it says "MCUDEV_TFT1.44" below the display.
I can't find ...
1
vote
1answer
122 views
Is there a Arduino UI library that provides dialog box and button functionality at a minimum?
I have been looking at the Arduino TFT Library and it supports all the bits and pieces for making a simple display, but I am looking for something a little higher level that has primitive dialog box ...
1
vote
1answer
98 views
Drawing a line at a given angle
Im attempting a device that measures lean angle. I have an ESP8266 + MPU6050 + SSD1306 setup, and I've managed to build a shaky but somewhat functioning device.
What Id like to do is use the ...
2
votes
0answers
58 views
TFT Screen & ATMEGA168
I have a Arduinio nano and a ATMEGA168. I'm using the ST7789 library. The sample code which comes with the library runs perfectly and runs the display when using the Nano, but the same code does ...
3
votes
0answers
89 views
Black screen when using higher SPI-speed for RA8857 LCD-controller
I'm using an Arduino Due that talks via SPI to an LCD (800x480) with the RA8875 controller chip.
The most recent datasheet I could find is: RA8875 datasheet.
Everything works as expected when using ...
1
vote
0answers
228 views
Getting Trouble in multiple ST7789 SPI LCDs (without CS) with ESP32
I am developing a product in which i have to use 5 LCDs. The LCD i am using does not contain CS pin. SO i had to use MUX for muxing of complete SPI bus from one LCD to other.
But the issue i am facing ...
2
votes
1answer
252 views
Trouble obtaining values from Nextion screen to Arduino
Currently I have a setup running an Arduino BME 280 sensor and a 4.3" Nextion screen. What my program does is sent all the calculated values from the BME to numbers and progress bars in my ...
1
vote
1answer
182 views
ESP32 with Lolin 2.4 inch TFT Shield Power control
I am running out of intelligence trying to control a Lolin 2.4 Inch TFT shield.
I connected the shield via the official TFT connector to a Lolin D32 Pro. I am using the ILI9341 libary from Adafruit. ...
1
vote
0answers
107 views
Maximizing SPI-speed between Arduino DUE and RA8875 display driver
For a project I would like to be able to control my RA8875 display driver as quick as possible using an Arduino due.
I started from the Adafruit library and replaces all "digitalWrites" ...
0
votes
1answer
27 views
Use Android on Arduino TFT
I don't know whether this is possible or not but is there any way that I can run something similar to Android on a normal TFT. I want to make complex graphics but can't program those complex programs ...
3
votes
1answer
484 views
Alternatives to Nextion display
I am wanting to have a display where I can design the GUI on a program and then somehow transfer it to the display. For the graphics I want to make, it would be really hard to manually write the code. ...
0
votes
1answer
49 views
Use normal TFT Shield with SD as a Nextion Display
I have a normal Elegoo TFT 2.8" display shield that also had an SD reader. I am trying to use it as a Nextion display. I want to do this because the Nextion tool allows you to make very nice ...
1
vote
0answers
182 views
TFT menu system sometimes doesn't refresh the screen properly
I have a project in which I control a display using an Arduino Due microcontroller.
The user can navigate on the TFT display (RA8875 driver ic) with a rotary enconder/pushbutton.
The display shows a ...
4
votes
1answer
639 views
ST7789 TFT display only shows a correct image while Arduino reset button is held down - Why?
I am trying to get the ST7789 TFT display to work with Arduino. I followed online guides for connections and am using the fast library fron github and included workbench ino (https://github.com/...
1
vote
1answer
57 views
Object composition (class uses class)
I would like to write a class which utilises another class and it´s member functions. I found out that this is object composition and read some examples of how to do it but it ither doesn´t work for ...
-2
votes
1answer
81 views
Arduino ESP32F-TFT-1.44 Driver
Datasheet https://github.com/espressif/esp-hosted/files/5190376/ESP-32F.pdf
The below code is not working.
I can see only White screen
#include <Adafruit_GFX.h> // Core graphics library
#...
2
votes
1answer
60 views
I want a bar type display for my Arduino Project
I am trying to make a smart table project. But I have stumbled upon one problem, that is I don't know which display should I use. I need a display that has roughly aspect ratio of 2:1 but also has a ...
0
votes
3answers
427 views
how to fix mirrored text on 3.2 inch IPS TFT LCD Display ILI9481 480X320 36 Pins for Arduino Mega2560
i am working on a project on my arduino mega2560. I want to show reading of the sensors on the TFT display, the problem is the text displayed on the screen is mirrored. Since i am very new to arduino ...
1
vote
1answer
318 views
ST7735s 1.8" SPI 128x160 TFT Module - White Screen
I am having an issue in my 1.8" TFT LCD module with SPI interface in Arduino Nano. I keep seeing the white screen on my tft.
I have made the following connections using Jumper cables:
RST --- ...
1
vote
0answers
640 views
Problem with gps.encode() using TinyGPS library
First, see the schematics (attached).
The GPS is working properly when I write code only for reading data from it as below:
//Connect with pin 18 and 19
#include <TinyGPS.h>
//long lat,lon; //...
1
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0answers
305 views
Display GPS module data to my TFT display
I am using Arduino Mega 2560 and I have written code for my GPS module (Neo-6m-0-001/GY-NEO6MV2) and it is working fine independently.
I also have written code for Compass module (QMC5883L) which is ...
1
vote
0answers
90 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" ...
1
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0answers
229 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 ...
-1
votes
1answer
543 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 ...
1
vote
0answers
41 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
votes
2answers
371 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 ...
1
vote
0answers
55 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
2answers
2k 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" ...
1
vote
0answers
329 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 ...
1
vote
0answers
135 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
1answer
607 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 ...
-1
votes
1answer
3k 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 ...
0
votes
1answer
169 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
1answer
968 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 ...
1
vote
0answers
53 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. ...
1
vote
0answers
286 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
votes
1answer
2k 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 ...
1
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0answers
98 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 ...
1
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0answers
101 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 ...
1
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0answers
602 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 ...
1
vote
0answers
47 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
2answers
744 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'...
1
vote
2answers
1k 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 ...
