I need a gyroscope for balancing my robot. After a long search and high prices i found this: http://www.ebay.it/itm/murata-env-05h-vibrating-gyroscope-Angular-Rate-Sensor-/300305649903?pt=BI_Robotics&hash=item45eb9c90ef#ht_3585wt_1037

input voltage 5v. Uses the same 3 pin configuration of ez board. Should be perfect,

Is it compatible?

Also can i ask you what could it be the best hardware to measure the speed of the robot? I hope mine will reach >60 mph so i'll need something to keep track of it