i am currently using the usb cable to power the arduino duemilanova
ok, so i know that you can use a power source dc 7 - 12VDC that can be hooked into the Vin connection on the duemilanova
the othe rquestion is this
the jack connection that sits on the board can also be used to power the arduino
does anyone know exactly what kind of powersource must be used to provide power via this connection
from what i've seen it doesn't say much is evasive or contradictory
i watched a "collin lab" vimeo about power supplies and he picks up a plug pack 9VDC and declares you can use this to power an arduino device he holds in his hand
the official blurb about this connection mentions nothing about what kind of voltage or recommendation , is it it safe to assume that the voltage you can put on the Vin pin is the same voltage you can put on the jack connection?? its positive for the central pin i think