Hello one and all, I need some help configuring the latest version TFT_eSPI library for ST7789P3, 2.25 inch 76x284 TFT display. I'm assuming that I can use Mr Bodmer's library as it's nearly working and I have had good experience in the past with other displays. In this case the obvious issues are…

A working solution for this display is below, thanks to ua6em and my own tinkering. It should be further improved to prevent a library upgrade from overwriting the library file changes below. Since I could not find a way of customising x, y offsets from platformio.ini I dropped doing it that way in…

Swap width & height because they are defined for portrait mode for the 7789. Then "play" with the screen rotation. From User_setup.h // For ST7789, ST7735, ILI9163 and GC9A01 ONLY, define the pixel width and height in portrait orientation

Thanks for your suggestions Max. I have played around with the platformio.ini height and width along with the code setup() rotations of 0-3 but was unable to arrive at the desired result. I'm unclear what the User_setup.h quote means, does it imply it can't achieved in the platformio.ini? When reve…

I have a screen with the 7789 that I set from platformio but unfortunately it is 240x240. :man_facepalming: I have no way to test by changing the parameters

The ST7789_Defines driver doesn't have your display settings; you need to add them there.

Um, doesn't the following platformio.ini setting effectively create a new setup? build_flags = -D USER_SETUP_LOADED=1 ; Prevent loading default User_Setup files ... height and width, etc

No stress Max, the solution will come with persistence. Really appreciate your input.

Open the file that I marked and see how it is arranged and what the system sets in the settings if your display is not included in the prescribed ones

[image] ua6em: ST7789_Defines Looking in files: TFT_eSPI\User_Setups\Setup24_ST7789.h, TFT_eSPI\User_Setup_Select.h TFT_eSPI\TFT_Drivers\ST7789_Defines.h I only see the following customisation properties, but as you see I have tinkered with them all in combination with the setup() orientati…

[image] jackmiles3: What am I missing? If your display is not defined, it will be set else if(_init_width == 170) { colstart = 35; rowstart = 0; } else { colstart = 0; rowstart = 0; } #endif

Hello Victor and thank you for your comments. So that I'm clear and I'm understanding you. Are you saying that changing x,y offsets is not possible within the platformio.ini. But instead to change offsets by following these steps: Make a new entry in TFT_eSPI\TFT_Drivers\ST7789_Defines.h. Make a…

TFT_eSPI Setup for ST7789P3 2.25" 76x284 TFT

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ua6em September 29, 2025, 3:52am 14

It would be ideal to make these changes to the library hosted on GitHub.
The display should support a refresh rate of 80 megahertz, try it

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TFT_eSPI Setup for ST7789P3 2.25" 76x284 TFT

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