Hi All !
I am Oliver from Dresden Germany. Received my BrickPi yesterday from Generation Robots in France. I had no success with normal 9 Volt Batteries.
But now i have two solutions for stationary and wireless operations.
Please see here for some details and photos.
I tested all with LED.py and LEGO-Motor-Test.py.
Have Fun !
i forgot to mention in whatever position you switch the power switch on the battery box, you always get the right 9 Volts out of the two outer wires from the Lego Extension wire. For more details please see:
Have Fun, Oliver