We mentioned our new brain before and by now it’s in active use in the new robots. On it we are running a customized Linux system with kernel 2.6.35 with very minor patching to fix some serial baudrate issues.
The speed improvement was tremendous and allowed us to do a few more things in the computer vision than last year. Most importantly it allows us to process many more pictures per second.
One issue we had with the board was the speed of the integrated WiFi, especially after we mounted it inside the robot. But luckily it was easy and well documented how to attach an external antenna and the situation has improved quite a bit. However, we will have to monitor it closely, as WiFi and RoboCup is always a problematic mixture.