Fair warning: I'm a newbie when it comes to Arduino, so if I'm not too great at describing things, let me know so I can learn!
I have recently built a fairly accurate laser timer to time sprinters through a section of a soccer pitch, giving a nice reading of their average speed through the zone.
The limitation is that we would love to be able to see their speed as a progressive measurement throughout the sprint.
My problem? I have NO idea where to start. Google has so far come up empty...
All I have is the following link, Best of the 2015 NHL All-Star Skills Competition, illustrating the sort of thing we would like to accomplish. The bit in question starts at around 0:35 when they are talking about sensors in the players' jerseys.
Any one able to point me in the right direction?