Arduino LED PWM control with a pushbutton used for switching between different brightness settings

[gcjr]

@breadboardboi

I'd throw this in the end of the void loop, but it's not working.

as i've said, the range of noticable dimming is very small, very close to the extreme.

if the LEDs are wired active HIGH, you might try values of 0, 10, 20, 50, 255