polpe:
Hi all,
if I want supply the Arduino Duemilanove board via VIN pin and I want occasionally put USB to control the data, how the board works?Yes it will work fine. The arduino is designed for such situations.
When I put the USB cable to the computer and I supply via the POWER CONNECTOR all work fine. The board understand that 2 possible supply are applicated and choiche automatically the best...
Not a matter of which is best, if voltage is avalible on the Vin pin or from the external DC connector then it will always be selected over the USB power.
But this automaticcally choice has done also suing USB and VIN pin?
Yes, the rule is if both USB and Vin/external power are avalible then the board will use only the Vin/external power.
Lefty
Thank very much,
Polpe