Getting text to show up

Official Hardware Mega GIGA Display Shield
1

I have been trying most of the day, but I can't seem to get my Giga Display to show any text using LVGL. I have been able to get it to show a graphic, I can use the examples to get it to do other stuff stuff, but when I try to get it to show a simple line of text with LVGL, nothing shows up. I tried using examples from the LVGL website, and again, nothing shows up when I upload it. I have tried modifying examples of other code that I can find, but nothing seems to work.

Sorry, I don't have any code to show, as I have tried umpteen different ways and I don't have all of them saved.

Does anyone know where I can find an example of code or tutorials that work that write text to the screen? Basically, I am building a system, and I want to go through a test that everything is working on startup and display the results to the screen before beginning. I thought about GFX library instead of LVGL, but from what I understand, you can't add a new line below a previous line of text in real time, but you are supposed to be able to with LVGL.

2

Hi @littlejohn657.

Are you referring to the "Arduino_GigaDisplay_GFX" library?:

https://docs.arduino.cc/tutorials/giga-display-shield/gfx-guide/

I think it is a good option for a project where you only need to print some text to the display.

You can definitely do that.

I'm not exactly sure what you mean by "in real time", but you can get started by uploading this simple demonstration sketch to your board:

#include <Arduino_GigaDisplay_GFX.h>

GigaDisplay_GFX display;

void setup() {
  display.begin();
  display.setTextSize(3);
  display.setTextColor(0xFFFF); // The argument is a 16-bit RGB color value.
  display.fillScreen(0x0000); // Clear the screen.
  display.println("Hello");
  delay(3000);
  display.println("world!");
}

void loop() {}
3

Thanks. This did work. Sorry, I just realized that I forgot to respond to you.

4

You are welcome. I'm glad it is working now. Thanks for taking the time to post an update!

Regards, Per