|BrickPi top view|
|BrickPi side view|
For wireless operation i took the original Lego Power Functions Battery Box. It carries six AA 1,5 Volt Batteries and is capable of delivering 800 mA. I ran only some short tests with one motor and the LEDs. More to become. Interesting to see how long the battery works with a full driven model.
As cable i took a Lego Power Functions Extension Wire and divided it in two halfs. One end goes to the battey box and the other to a dc-power plug. For the connections please see Philos great presentation about the Lego Powerfunctions System. The presentation has all needed technical details.