oh, so can I take the 5V from the arduino board and maybe put a resistor somewhere in there in order to get the voltage down to 4,5V... or something like that? 
Sorry, I am a begginer about circuits.
oh, so can I take the 5V from the arduino board and maybe put a resistor somewhere in there in order to get the voltage down to 4,5V... or something like that?
Sorry, I am a begginer about circuits.