Mindboards

I have craked it. The key was don't get the switches to do an either/or. Get them to work togethter, then analyze which was set off. I have added it to NXT Log for all of you interested, but they haven't approved of it yet. If you want to get updated when they do please "like" this faceboo...

thanks. it isn't really what I want. remembering that the station is a stop, whereas the crossing is an up/down with servo motors

Hello! I have a Lego 9v train, along with a 1.1 NXT. I would like to be cable to combine the 2 items so that the mindstorms works the train (or helps work it). I have: 1. Used the NXT to power the train forward. 2. Make it run forward until the ultra-sonic (which is beside the track) senses it then ...