Oh! I remember getting several blind middle school students interested in robotics. I believe one of them wanted to program.
So far on my team though, we've only had students with mental disabilities/impairments/differences-- two students with autism (high-functioning though) and one with ADHD (who had to quit in order to pull up his grades).
I'm wondering how we can better include them if the condition isn't always as obvious (these students' differences aren't exactly publicly known, if that makes sense).