Puma's robotic running companion can keep pace with Usain Bolt

The robot works by scanning lines on the track with an array of nine IR sensors, while wheel rotations are monitored via Arduino to keep track of speed and distance. If you figured this would be expensive, you're right. Even though there isn't an exact price, for now, BeatBot will only be offered to Puma-sponsored teams and athletes. Until that changes, you'll just have to make due the old fashioned way: finding a faster running buddy.