Changing on Display

Bea_12 · ‎2025-04-01

Hello everyone,

I am currently working with the STM32F746 and have implemented a brightness controller. I can control the regulator via code (CubeIDE) and assign a value. However, I don't understand how to make the display actually adjust its brightness accordingly. I have already searched the internet but haven't found anything that helped me.

Does anyone have experience with this or know which approach I should take? Do I need to control the backlight separately, and if so, how can I do this? Any help or pointers would be greatly appreciated!

Andrew Neil · ‎2025-04-01

Please see: How to write your question to maximize your chances to find a solution.

@Bea_12 wrote:
I don't understand how to make the display actually adjust its brightness accordingly.

What does the datasheet for the display say?

You haven't said what display you're using.

Are you using TouchGFX?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.