[Gumstix-users] Power for both COM _and_ expansion board?

[Jake P. <djs...@gm...>]

Hi all,

I'm new around these here parts, but I had a quick (probably stupid)
question.

I'm looking into creating a device with the Tobi-Duo dual-ethernet expansion
board.  My understanding is that in order to do anything with this I also
need a COM module which mates with the expansion board via the two 70-pin
connectors.

My question is that both the COM module (say the plain ol' Overo Earth) and
the Tobi-Duo have +5V barrel connectors.

Does that mean I need two power supplies for my device?  Or is the expansion
board powered by the COM module via the two connectors?

TYVM

-- 
-jp

I think man invented the car by instinct.

deepthoughtsbyjackhandey.com