PWM duty update delay?

Forum 2005-2010 (read only) Hardware Interfacing
1

Does anyone know how long it takes an Arduino to update the duty cycle on it's PWM out? Or, if it is easier, how fast can I change the duty cycle and have it actually respond?

Does it update faster than the PWM frequency? (~500hz) Slower? Same speed?

Thanks!

2

oes it update faster than the PWM frequency?

No how can it possibly.

It updates on the next full PWM cycle. :slight_smile:

3

So it is a full speed buffer? That's good.

(Hehe. Yeah, wasn't thinking when I posted that. :smiley: )