ILI9488 wrong init

[Pepepotero]

Hello I have a TFT ILI9488 I have connected it to an ESP32 TTGO T8 1.7 as follows: TFT ESP32 PIN SCK 25 B/C 32 MOSI 33 RST EN (rst) I have loaded the clock.ino example by changing the lines: Arduino_DataBus bus = new Arduino_ESP32SPI(32 / DC /, -1 / CS /, 25 / SCK /, 33 / MOSI /, -1 / MISO /); and Arduino_GFX gfx = new Arduino_ILI9488_18bit(bus, 0, 0 / rotation /, false / IPS /); Just after uploading the sketch, white screen. I press the reset button of the ESP32, white screen, I press again, IT WORKS. I press reset again, white screen, again, again, again..... That is, it works randomly. Thinking it could be the cables, I changed them several times with the same result. I changed the TTGO for another and the same result, so thinking that the TFT could be defective, I bought another one, and got the same results. If I change the RST pin to -1 when defining the gfx, just white screen. And if I change the pin both physically and, on the line, just white screen... Therefore, it may be a bug in the library. Looking at the code I see that when setting the pin to != -1 it does a soft reset (as you can see there is a 0) but it doesn't come out correctly. I have looked at the datasheet on the screen and it seems that everything is correct in the library. I don't know what to look at anymore. Is it a library bug or am I doing something wrong? Thank you very much in advance.

[moononournation]

I am testing with a makerfabs test kit, here are the link: https://www.makerfabs.com/esp32-3.5-inch-tft-touch-capacitive-with-camera.html and here is the testing video: https://youtu.be/NkE-LhtLHBQ

If you cannot turn it on, most likely it is not ILI9488. you may try ST7796, ILI9486 or ILI9481 driver instead.

[JohnTaipei]

please try Arduino_GFX gfx = new Arduino_ILI9488_18bit(bus, -1, 0 / rotation /, false / IPS */);

your rst is EN not GPIO0

[moononournation]

You mean you have proved ILI9488 does not work with RST connect to EN? Then don't do it.

[JohnTaipei]

He said that he connected RST to EN pin so rst set -1

RST have to connect to EN pin

[moononournation]

then you should test with his example code first

[JohnTaipei]

i did it works well https://www.youtube.com/shorts/VYESfyJWG50

ili9488 ,st7796 ,nt35510 RST connect to EN rst -->-1 work ok