Thompsan wrote:
I have intentions to acquire an RPi for use in low-power robotic systems and would like to know if the higher power consumption of the Model B is only due to the presence of the Ethernet plus USB-Hub.
Yes, the only difference between the model B and the model A is the presence of the LAN9512 chip, and its supporting hardware. that and a few zero ohm resistor to directly connect the SoC's USB data lines D+ and D- to the USB connector, and obviously a single USB connector mounted in the position now occupied by the double-decker connector.
Thompsan wrote:Are the models equivalent in terms of watt drain when not using Ethernet nor USB?
No, because even if you do not
use neither Ethernet nor USB the LAN 9512 is still consuming about the same amount of energy.