I've seen a few videos and sites talking about PID based line following and balance bot applications.. but our kids just want to see a good example of straight line PID code (without trying to teach them calculus). I can do this in C, but I'm not savvy enough with the mindstorms GUI tools to show them how to do it in Lego. Tweeks -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.