3
votes
Accepted
Slow refresh rate of 1.8 TFT display
The ST7735 TFT uses SPI to communicate. That can never be particularly fast.
At 160x128 pixels with 16-bit colour depth that gives you 327680 bits that you need to transfer just for the colour data. ...
- 106k
3
votes
listing sd card files on a tft screen
If I start listing the files, can I scroll up and down ? Because at some point the TFT screen will become full of text, and I don't want the text to be overwritten.
If you program that kind of ...
- 106k
3
votes
Accepted
Connecting LCD TFT shield to NodeMCU
The driver chip was identified by https://www.waveshare.com/wiki/2.8inch_TFT_Touch_Shield and https://www.waveshare.com/w/upload/8/84/2.8inch-TFT-Touch-Shield-UserManual-EN.pdf as being the HX8347D.
...
- 3,646
3
votes
mcufriend 2.4 TFT with ESP8266
SD_DI is the MOSI, and SD_DO is the MISO. According to the datasheet.
- 31
3
votes
ILI9341 backlight flickers when using USB power from Laptop
That happens because not all USB ports can supply more than 500mA of current.
When you use a charger's USB port, it is designed to provide more than 500mA of current(ex. 1-2amps in most chargers). Try ...
- 176
3
votes
Accepted
I want a bar type display for my Arduino Project
As Majenko already stated, the second image shows a custom display. It is not pixelated, because each shown element/symbol has it's own element in the LCD. When you have one of these displays, you ...
- 16.6k
3
votes
Accepted
ST7789 TFT display only shows a correct image while Arduino reset button is held down - Why?
I found the answer to this problem. After reading multiple web pages / YouTube videos from multiple authors on this device and ~all of them warning you must never connect the Vcc to 5v or it will ...
- 323
3
votes
Accepted
Alternatives to Nextion display
We work with Proculus displays, and we are a distributor of this display here in Brazil (Victor Vision). The display is great, very professional. Used in medical equipments, and cheaper than Nextion.
...
- 46
3
votes
Accepted
Turn off backlight on 2.4" TFT screen
That screen has no backlight control. The same chip is used on many LCDs and whether the inbuilt backlight control registers are used very much depends on the screen the chip is attached to.
If you ...
- 106k
2
votes
Multiple devices on SPI
Connect the BME280 board by I2C, it cannot be used in a multi-SPI setup. The problem is that the MISO line it not decoupled from the bus if CS is HIGH but constantly pulled HIGH. This will disturb ...
- 86
2
votes
Accepted
How to detect an read buttons pressure on touchscreen
The fillRoundRect function format is (initial_Xpoint,initial_Ypoint,length,width,corner_radius,color)
Therefore, you already have the information about the location of the button itself. Next, check ...
- 1,258
2
votes
How to expand an Arduino when using a TFT display shield?
As I can read your link, the shield is using D2-D8 and A0-A3, leaving some pins unused. So some Arduino pins are still free to use, just the shield is in the way to get connected there.
So there are ...
- 1,466
2
votes
Accepted
Arduino NANO hardware SPI not working
Use constructor Adafruit_ILI9341(10, 9, 8); to make the reset that works with software SPI.
To SD card as second device on the bus:
Every SPI device on SPI bus must be controlled by slave select ...
- 18.3k
2
votes
Accepted
Why am I only seeing white screen in TFT 1.44 ST7735?
I would like to suggest some changes in your code i.e.
Your Code:
/**************************************************************************
This is a library for several Adafruit displays based ...
- 546
2
votes
Ethernet Shield Not Working With TFT Screen
From examining the schematics of the Ethernet shield as well as the TFT shield, it looks like the Chip Select (CS) pin of the Ethernet shield uses the same pin (Arduino pin D4) as the Interrupt pin of ...
- 1,681
2
votes
how to fix mirrored text on 3.2 inch IPS TFT LCD Display ILI9481 480X320 36 Pins for Arduino Mega2560
Had this same problem with everything mirrored/backward. Not sure you're still trying, but for any others with this issue, here's how I addressed it..
If using the UTFT library from RinkyDink ...
- 21
2
votes
Accepted
Use Android on Arduino TFT
No. Not even remotely. Android runs on a powerful computer not a tiny embedded microcontroller.
- 106k
2
votes
Maximizing SPI-speed between Arduino DUE and RA8875 display driver
To speed up the RA8875, you should start with small clock frequency to initialize the RA8875 including the pll configuration and then you can make the clock frequency faster. It works with me.
- 21
2
votes
Has anyone heard of MCUDEV_TFT1.44 display? I can't figure out how to connect it to Arduino
If anyone else has the same display and iswondering how to make it work, here is how I connected and the script I used.
I couldn't find my display model so I just used this in Fritzing and added the ...
- 31
2
votes
WDT ISR not called when SPI ST7789 module initiated
You can't use the LED on pin 13 on Uno, Nano or Nano Every, if you use SPI . It is the clock pin of the SPI.
The init function of the display initializes SPI which dedicates the pin to SPI peripheral ...
- 18.3k
2
votes
Accepted
ESP8266 + TFT SPI ST7796S - Touch and Display not working together
only one of them works at a time
You assumed that both touch panel and Display share the common SPI interface, the true is that they are using two SPI ports. See the pinout table below (this is ...
- 1,978
1
vote
Accepted
how to fix mirrored text on 3.2 inch IPS TFT LCD Display ILI9481 480X320 36 Pins for Arduino Mega2560
The orientation of the display is controlled by the "Set Address Mode" command (0x36) at line 42 of the ILI9481 driver.
The current value is 0x0A which is 00001010 in binary. According to ...
- 106k
1
vote
ST7735s 1.8" SPI 128x160 TFT Module - White Screen
I have a 1.44' SPI 128x128 V2.0 [Blueish (teal) PCB, Green Tab Screen].
I was having the same problem. I had connected the VCC pin to 3.3V.
Solution: connect VCC to the 5V pin
The white screen is gone....
- 11
1
vote
How to create and edit fonts for the Adafruit GFX library?
I found an online editor that can parse Adafruit GFX font headers, modify, and export the result to create a new font header. It works very well. May be a bit late to help OP, but for anyone else ...
- 111
1
vote
Ethernet Shield Not Working With TFT Screen
The error message is from the ethernet library. As I do not have the sufficient hardware to test this indicates a pin conflict. So the ethernet shield v1 uses/needs one or more pins the LCD shield is ...
- 1,331
1
vote
Slow refresh rate of 1.8 TFT display
Given you use the last library versions and have the cables right - it is hard to guess without your code.
So to check if it your code load one or two of the library examles and see if it works there....
- 1,331
1
vote
Use JYETech 2.4 Inch LCD Display Screen Module with Arduino?
That display is an ILI9341 based one. On the DSO138 it connects the data pins D0-D7 to PORTB of the STM32.
You need to connect those 8 pins to 8 pins on the Arduino, along with the RS (Register ...
- 106k
1
vote
Increase or decrease the brightness of Nextion display
The original question has been improved (which is appreciated) to include the IDE which the poster is using. In this stackexchange.com space we primarily concern our selves with answering questions ...
- 7,513
1
vote
Accepted
How to make a custom character on a TFT LCD display? (128x128)
Simple: you don't.
You only need to create a "custom character" on character-only displays (where you are actively programming a new character into the display's internal character set).
With a ...
- 106k
1
vote
Connecting TFT Display MI0283QT-9A to ESP32
Same (TFT proto board) tested Arduono DUE.
Pins IM1-3 HI, IM0 LO. (4-wire 8-bit data serial interface)
SDI - MOSI, SDO - MISO,RS - CLK, RD - HI, WR - D9, CS - D10, Reset - Reset (D8)
Driver UTFT ...
- 11
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