Last year 228 had two student programmers and one adult mentor/electrical engineer who worked on the code for our robot. The majority of the work was done by one of the students, who is now an alumni and continues to help our team. This year, I am not sure of the exact numbers, but we have at least as many programmers, as well as a new computer science teacher that's involved with our team.
Although I generally don't do much C programming for our FRC robot, I do all the PHP/MySQL/XHTML/CSS programming for 228's website. I'm self taught all four of those languages. I also do a lot of programming in EasyC for various projects.