Ac or DC

Other Hardware General Electronics
1

Hi there,

I am new with arduino. please tell me whats the 5 V or 3.3 V pins out put, is it an AC or DC?

Thanks in advance,
Rajesh

2

Its DC, its a power rail (but very low current) for external 3.3V devices. You won't see AC supplies
for semiconductor circuits (you might for relay logic though!)

3

Thank you Mark for the quick reply.
So even if i need to take the AC, i should have to convert it, with a voltage to frequency converter or so, right?

4

So even if i need to take the AC, i should have to convert it, with a voltage to frequency converter or so, right?

What voltage, and what application?

....The methods of dealing with AC power lines are different from the methods of dealing with an AC audio signal, etc.

The Arduino can be damaged by negative voltages or voltages above +5V. Since AC swings positive and negative, you cannot connect AC directly to an input, and you can't directly get AC out.

5

So even if i need to take the AC, i should have to convert it, with a voltage to frequency converter or so, right?

You have identified yourself as a newbie. Now you need to explain exactly what it is you are trying to do.
ie:

I have a _______, and I want to _______ ________ and connect to arduino.

6

Except for the "Analog out" which puts out a pulse train with variable duty cycle.