Assuming your board powers the ATmega chip with a 5V supply you shouldn't go above
five volts. If there is a chance you could above 5V use a diode to limit the voltage
and a resistor to limit the current.
(* jcl *)
Assuming your board powers the ATmega chip with a 5V supply you shouldn't go above
five volts. If there is a chance you could above 5V use a diode to limit the voltage
and a resistor to limit the current.
(* jcl *)