[beagleboard] How to make a robot,use the BBB?

You can use the default operating system Angstrom/Linux and you can interface quite easily with lots of sensors. If you are really new to either robotics or BBB, might I suggest this book as a good starting point,

http://www.amazon.com/Bad-Bone-Electronics-Beaglebone-BeagleBone/dp/1627051376/ref=sr_1_3?ie=UTF8&qid=1368970441&sr=8-3&keywords=beaglebone