Serial.begin() after Sleep

Projects Programming
1

Hello,

ATMega328 is used; in case the sketch does Serial.begin(9600); in the setup, is it needed to begin again after waking up from sleep in SLEEP_MODE_PWR_DOWN?

Thanks in advance.

2

That would seem to be the kind of thing you could discover for yourself by trying it.

So what happens when you add it in, and what happens when you leave it out?

3

No.