Brightness control PWM frequency?

[_valtsu_]

Hi,

I'm planning to use Adafruit Feather board to control the screen brightness. What is the real PWM frequency to do that?
Raspberry Pi commands wont tell that straight away.

Thx!

[_valtsu_]

Got this figured out. I was overthinking it.
Seems like the PWM signal is directly controlling the backlight probably with help of a MOSFET or similar, so you can use what ever frequency you like. Of cource frequency just needs to be high enough, that screen wont flicker.

[John Nicol]

Good info!