ESP32 4.3" yellow display touch issue can't change the resolution of the GT911

[wolf_mountains]

Hi,

I have a problem with the resolution of the touch coordiation.

The display is 800x480 but the max resolution I can get is the default 480x320.

And when I set the resolution to width = 800, height = 480:
1. I get the zero points of either x and y coordinates as, x: 328 y: 220.
2. Max coordinates, as, x: 795 y: 480 .

So it's working for the max values but not for the low values.

I'm using the official Arduino TAMC_GT911 library.
https://www.arduino.cc/reference/en/lib ... amc_gt911/

Any suggestions of how to change the resolution ?

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[danny_longlist]

Hi,

I have a problem with the resolution of the touch coordiation.

The display is 800x480 but the max resolution I can get is the default 480x320.

And when I set the resolution to width = 800, height = 480:
1. I get the zero points of either x and y coordinates as, x: 328 y: 220.
2. Max coordinates, as, x: 795 y: 480 .

So it's working for the max values but not for the low values.

I'm using the official Arduino TAMC_GT911 library.
https://www.arduino.cc/reference/en/lib ... amc_gt911/

Any suggestions of how to change the resolution ?

I had the same problem.
I purchased the following 4.3” screen and I can't adjust the resolution on my own

https://rjydisplay.com/product/4-3-inch-tft-lcd-display/

 

[CF Kelsey]

Hi, we can only provide direct support for Crystalfontz parts, though I'll leave this post here in case community members have additional support or the same question.

Sometimes display sellers do not bother to match the touch panel's resolution to the display's resolution. The way to fix it would be to reprogram the touch controller which is not something consumers typically have access to.