Questions tagged [tft]
A thin-film transistor (TFT) screen
33
questions with no upvoted or accepted answers
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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 ...
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2
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0
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88
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TFT Screen with Arduino UNO does not display as expected
I have a 3.5" TFT LCD communicating in parallel connected to Arduino UNO.
I expect it draws a white circle on a black background but all it does is to show a white screen.
How to fix this?
main.c
...
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2
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How do I interface my ESP32 board with my 3.5" TFT Screen
I've bought an ESP32 board from here and a 3.5" TFT Screen from here. The ESP32 board has an UNO type layout so I thought it would work with the screen which is designed to plug in and play with ...
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2
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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 ...
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2
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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.
...
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2
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70
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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 (...
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1
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0
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61
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When a button is pressed, it interferes with TFT screen
I'm trying to build a simple device to monitor my heart rate. The components are the following:
A TFT 2.8" LCD screen to display relevant information for the user.
3 buttons for the user to ...
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1
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0
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205
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SPI protocol with multiple devices
I need to write and read the measurements received by a sensor on an SD card. The card reading would be to display the data on a TFT screen. Specifically, I am using the 1.8-inch ST7735 screen. To use ...
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1
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0
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318
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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....
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1
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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'...
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1
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491
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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 ...
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1
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0
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568
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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 ...
- 155
1
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0
answers
2k
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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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0
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746
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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
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0
answers
149
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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" ...
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1
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590
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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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1
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0
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241
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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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1
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0
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128
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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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732
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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
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0
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207
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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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1
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0
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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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1
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487
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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 ...
1
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0
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167
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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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0
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130
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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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1
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0
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867
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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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1
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0
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54
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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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0
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1k
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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 ...
- 151
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0
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609
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white screen : 2.8" TFT LCD Screen Module: HY-280TFT
i have a problem with my new 2.8" TFT LCD Screen Module HY-280TFT.i connect it with an Arduino Uno board like this way:
Connect HY-TFT280 to Arduino UNO
LEDA -> 5V
LEDK -> GND
VCC -> 5V
RD -> 3.3V
...
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Can TFT displays share the same RST?
I am trying to connect up to 5 TFT displays to one Arduino Uno R3 and use a multiplexer to control the output to each display. At the moment I am stuck being able to only write to a single one. Every ...
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-1
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2
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143
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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
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1
answer
541
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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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-2
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1
answer
163
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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
#...
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-2
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1
answer
241
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Use a 2.8" TFT with my Leonardo
for 2.8" diagonal color touchscreen TFT:
Readme states:
"Works with any classic Arduino '328. Solder closed three jumpers to use the ICSP header for use with Leonardo or Mega"
What should I solder? ...
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