Yes, that is OK!
But like I said, make absolutely sure you check the current requirement of the controller that will be plugged to the 5V pin. If you don't check and it is too high, you'll fry the voltage regulator in the arduino.
Yes, that is OK!
But like I said, make absolutely sure you check the current requirement of the controller that will be plugged to the 5V pin. If you don't check and it is too high, you'll fry the voltage regulator in the arduino.