Hi Guys,I just want to be 100% positive of something before I potentially kill some expensive components. If I have a 7.2 Volt external power supply connected to the input jack on the arduino board. Am I ok to use BOTH the 5v pin and the Vin pin without damaging the board/components? The reason being is I have a GPS unit that will only operate between 5-5.5 volts and another component that works best around the 7v mark. I'm 90% sure the answer is yes but I would like to get confirmation for piece of mind >_< (sorry for the silly question).Nick
Hi Lefty,Thanks for the reply, I'm sorry but my explanations are terrible (I'm working on it ). I was trying to say that, as a completely standalone device (no USB power) could my external supply power both pins, ie give me a 5v pin to use and a 7.2volt pin concurrently?Nick
Yes you can use both the Vin voltage and the +5vdc voltage to power external devices from the Arduino board. However keep in mind that both those voltage sources have current limits that you can't exceed.