OK, I got the ‘Start here’ robot up and running. I am wondering if there are other examples of object avoidance software that have been written for the same basic platform (using SRF05). I am interested in seeing different approaches to this basic problem
No response so far. Is there
No response so far. Is there a software repository where people share code for this and similar robots ? If not, I think estabilishing such a library would be quite helpful. Most of the problems are basically software problems, so more support and discussions on this topic would be a step forward for beginners or people like me with programming experience but new to robots.
Sorry that you did not get
Sorry that you did not get any answer 
I think that most wil agree with me, that writing the code yourself is the making of the robot itself.
it is very hard to adapt code from another robot, as not 2 are alike.
However, did yu follow the "start here" part II & III ? There is in fact a complete code to download.
However, I think you are best off by making your own, that is the way to learn as well.
Start by making it do something extremely simple, like driving forward. Put that into a sub routine (read the manual for hos), and make the next sub… slowly you are building a library of subs for your robot, and then you make a "main" that runs these subs.
Best of luck