I used my R2 as the basis of my project, which meant I had to write a book filled with all of my research, the steps I took when designing and building him, even the datasheets for all of the components on my PBCs! With all that information, the finished book was quite thick, so I also prepared a shortened version in the very front in case the judge did not have much time to spend reading the entire book.
The judge was interested in the various projects and asked every competitor a lot of relevant questions. When it was my turn, I booted up R2. R2 performed perfectly! I was able to share with the judge all of the important information pertaining to building an astromech. Once I had finished and he had asked his questions, he said he was speechless! He gave me a special merit with the possibility of Grand Champion! I will know tomorrow what I received on my project.
Update: I received Grand Champion! It is going to the state competition!