Guition JC8048W550 (C) display also works

[Acrobat77]

Hi,

First a big thank you to rzeldent! First time user of LVGL here and everything (demo) worked on the first go without any changes.

Of course I bought some displays before looking into the setup process and at first I thought I should have bought something else because of user reports I read regarding the lack of support for the ST7262. Then through Google I ended up here and -it just works-.

Good news: I bought a Guition JC8048W550 display (-C for capacitive touch) and looking at the example code I figured it was almost identical to the CYD 8048S050C. The Guition has a battery connector which I guess is a bonus and it is cheaper.

Found it in the Guition Store here: https://a.aliexpress.com/_EGlCxAF
There’s a 4.3” version as well but that one seems to have less flash memory (4Mbyte).

PS: it’s not as blue as on the photo! :)

[SoupySoups]

Can confirm, it works.

[mattjohnpowell]

I also can confirm. Made a little clock app as a tester. Nothing complicated but you can use it as a base

https://github.com/mattjohnpowell/clocky

[82amp]

I tried to compile your code, and getting errors in esp32_smartdisplay/src/lvgl_panel_st7262_par.c

Looks like there might have been a change that has broken in the last 2 weeks?

disclaimer: cloning and runnig your repo has been my first platformio experience, I am completely green to it

Small snippet:
...
PACKAGES:

• framework-arduinoespressif32 @ 3.0.7
• framework-arduinoespressif32-libs @ 5.1.0+sha.632e0c2a9f
• tool-esptoolpy @ 4.8.1
• tool-mklittlefs @ 3.2.0
• tool-riscv32-esp-elf-gdb @ 11.2.0+20220823
• tool-xtensa-esp-elf-gdb @ 11.2.0+20230208
• toolchain-riscv32-esp @ 12.2.0+20230208
• toolchain-xtensa-esp32s3 @ 12.2.0+20230208
  LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
  LDF Modes: Finder ~ chain, Compatibility ~ soft
  Found 42 compatible libraries
  Scanning dependencies...
  Dependency Graph
  |-- esp32_smartdisplay @ 2.1.0+sha.5e0221f
  |-- WiFi @ 3.0.7
  |-- lvgl @ 9.2.2
  ...
  .pio/libdeps/esp32-8048S050C/esp32_smartdisplay/src/lvgl_panel_st7262_par.c: In function 'lvgl_lcd_init':
  .pio/libdeps/esp32-8048S050C/esp32_smartdisplay/src/lvgl_panel_st7262_par.c:101:10: error: 'esp_lcd_rgb_panel_config_t' has no member named 'on_frame_trans_done'
  101 | .on_frame_trans_done = direct_io_frame_trans_done,

[82amp]

Okay, so when PlatformIO was installed, for some reason, it pulled an old version of Espressif 32. - it was @51.3 or something. I've manually installed 6.9.0, and uninstalled 51.3, and it is now compiling!

[Adolfovik]

Hello, I am trying to develop my own project with this board (JC4840W550), and I can compile and run with Platformio both examples of rzeldent and mattjohnpowell clock (very nice). But, in both cases, I have an annoying jitter effect in the display associated (I think so) with screen refresh.
Do not have you this jitter effect?

[SoupySoups]

Adjust pclk

[Adolfovik]

Thanks, but I got it finally without LVGL and without Platformio. I was not familiar with those tools, so I did it only with Arduino and GFX library. I will publish soon here.

[Adolfovik]

Finally here is my weather station using the JC4840W550 board with GFX library:

https://github.com/Adolfovik/MultiMeteo

I hope can help anyone fighting with this cheap but laborious board.

[vijugo]

Good morning. I had a piece of software that worked very well with Squareline and an ESP32S3 on a JC8048W550 display. About a month ago, I received some new models with a different ESP32S3 reference. When I loaded the program, the image remained blank. The ESP ran normally, and the display worked, but I didn't see any images. Could someone help me figure out how to get the images to appear? I've attached the software in case anyone could help me. I'd really appreciate it. https://drive.google.com/file/d/1SS6X_I-WKKLQWw33BCKnvBBp-eKFN2cX/view?usp=sharing

[Ebusicano]

has conseguido arreglarlo? Podrias pasarme el proyecto de la JC8048W550? M estoy volviendo loco con esta pantalla

[vijugo]

Ebusicano, sinceramente yo le trabaje 5 días tratando de que me funcionara, pero no lo logre, como tenía que entregar un proyecto use una plataforma china similar a Square Line , pero con menos parámetros y hay si funciona la pantalla. Pero el inconveniente que tiene es que el esp32 trabaja independiente y no puedo acceder como lo puedo con la libreria smartdisplay. Se requiere de un microcontrolador externo y se controla a través de comando json. Por ahora estoy usando esto mientras que alguien de una solución. https://www.guition.com/main/

[Ebusicano]

@vijugo Por fin la hice funcionar, tras dias y dias investigando he conseguido integrar una interfaz con eez flow. Lo malo, que tengo un flickering brutal tipo efecto glitch y no se como solucionarlo. Supongo que sea cosa de los drivers, pero de momento no ayuda ni ChatGPT.

[vijugo]

Ebusicano, si me puede pasar un programa de prueba básico yo logre mejorar eso con un timer y lo trabajo para ver como lo puedo mejorar.

[vijugo]

// Configuración del temporizador
void setup_lvgl_timer() {
timer_LGVL = timerBegin(1, 80, true); // Temporizador 0, prescaler 80 (1us por tick)
timerAttachInterrupt(timer_LGVL, &lv_tick_handler, true);
timerAlarmWrite(timer_LGVL, 1000, true); // Interrupción cada 1000us = 1ms
timerAlarmEnable(timer_LGVL);
}

void InicializarPantalla(void){
// Initialize the display
smartdisplay_init();
auto disp = lv_disp_get_default();
setup_lvgl_timer(); // Initialize the timer to update LVGL
lv_disp_set_rotation(disp, LV_DISP_ROTATION_0);
ui_init();
// Initialize the screens
}

[Ebusicano]

@vijugo el archivo del codigo pesa demasiado, alguna otra forma de enviarte el proyecto?

[Ebusicano]

@vijugo Arreglado, ajustando el pclk de 16 a 15.4

[vijugo]

@Ebusicano muchas gracias, efectivamente el cambio que hay que hacer es en la carpeta boards ubica el archivo json que esta utilizando para mi caso esp32-8048S050C y donde aparece "'-D ST7262_PANEL_CONFIG_TIMINGS_PCLK_HZ=(12.51000000)'", lo modifico a "'-D ST7262_PANEL_CONFIG_TIMINGS_PCLK_HZ=(15.41000000)'" y la pantalla funciona. Si alguien tiene dudas con respecto al dispostivo que esta utilizando por favor abran el archivo platformio.ini ubico la linea default_envs = esp32-8048S050C.
@Ebusicano mil gracias por su colaboración y estoy dispuesto a colaborarle en lo que necesite, si esta a mi alcance.