Since several people are interested in this project, I will write some instructions and upload them next to hex file in a day or two. This work was pure fun during the New Years holidays, and developing the GUI would be too much overload to me. However, you can adjust the parameters like I did - through the good old Hyperterminal
( or Minicom if you use linux). The details will be in instructions.
If I catch some time for improving the robot (ex. IR distance sensors), maybe I develop some GUI ...