Thanks,
I just have to know what the pins numbers for the PWM pins are.
I have connected LEDs to D3 tot D13. And LEDs are connected to A1 to A5. A6 and A7 don't work for this target.
A0 I use for the Randomize function.
So all the LEDs are on in several ways, reveral times and several brightnes.
And I hope I can use the PWM pins for the same function.
This Nano I use for a model train project. The LEDs are mounted in houses in several cambers.
Like in reality the lights goes on and off in a Randomized way.
In lot of model train projects the houses are light on all at the same time and the hole houses are light on. But that is less reality than my way.
Sorry for the bad English grammatica. But it is understandable I hope.