Hi everyone,
just in case someone is interested: I've written two Arduino libraries for interfacing with SRF02 (ultrasonic range) and CMPS03 (magnetic compass) sensors. The libraries are released under the MPL (Mozilla Public License) and are available from my homepage www.grapelabs.org.
SRF02 Library: http://www.grapelabs.org/arduino/libraries/srf02-ultrasonic-distance-sensor
CMPS03 Library: http://www.grapelabs.org/arduino/libraries/cmps03-compass-module
Please feel free to use them in your own projects, if you like. If you have comments or ideas for further enhancements, you can write to dirk@grapelabs.org. I'm planning to release some more libraries as I am advancing in my own robot projects.
Regards,
Dirk