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Tomorrow I would like to take more photos that interest you, just write. What the library should be about, it works fine and without any converters or resistors

it was enough to define the pd pin. Everything works as it should. Thank you for your help

Yes!!! Yes!!! Yes!!! Touch pad yes

1. it does not always start. You must turn the power on and off before it starts properly.
2. in the GD_23.h file, change #define FT_811_ENABLE 0 > #define FT_811_ENABLE 1
3,The touch panel...

Works ft811 with the GD23_T4 library without converters. NO!!!! CD4050 NO!!! CD4049
mosi <> mosi
miso <> miso
SCK <> SCK
cs <> cs
int <> pin4
pd <> pin3
Thank you all for your help.

on cd 4050 also doesn't work.
If anyone runs ft880 or ft811 on teensy 4.0
I'd like a description of how he got it. (connections and libraries)

teensy4--------------cd4050-------------ft800/811...

on cd 4050 also doesn't work.
If anyone runs ft880 or ft811 on teensy 4.0
I'd like a description of how he got it. (connections and libraries)

Niestety nie działa

Edit: "Unfortunately it does not work"

can cd4049ube be or won't work?

I think I understood. https://elty.pl/pl/p/Wyswietlacz-LCD-5-480x272-z-panelem-dotykowym-sterowanianie-SPI%2C-kontoler-FT800-/1196
such lcd

just asking if anyone managed to run. If so, I would like to ask for information about the library and connection instructions. The usual "hello World" is enough.

Hello, I am new here if anyone managed to run on teensy 4.0 display ft 800 or 811 If so, please help because I could not do it