title: Can Sphero detect objects without bumping into them?
body: <p>Does Sphero have any sensors that can help it detect obstacles before actually colliding with
  them? Something like an infrared sensor, or anything that can be used as "eyes" for the Sphero.</p>
  
  <p>One use-case for this is to program Sphero to follow moving objects, or just to avoid collision with other objects.</p>
  
  <p>Thanks!</p>