
Re: how to use vex bumpers?
I suggest you take the time to read through the VEX curriculum on ROBOTC's website. It will answer many of the basic questions you might have:
http://www.robotc.net/education/curriculum/vex/For button switches in particular, take a look at the relevant section of the curriculum:
http://www.robotc.net/education/curricu ... uch%29.pdf