Hi, I was playing a bit with my Mindstorms kit (8547) and noticed that the accelerometer is not listed in the robot.yaml file for both the gyroscopic and the sensor car. I don't have that sensor myself, but I assume it should be there? Regards, Rene -- http://www.rene-ladan.nl/ GPG fingerprint = E738 5471 D185 7013 0EE0  4FC8 3C1D 6F83 12E1 84F6 (subkeys.pgp.net)