During my Track and Field training sessions, my coach often expressed his desire to have a more precise way of measuring an athlete's performance. However, living in a third-world-country means that shipping from the US is expensive and sports clubs and educational institutions do not have precise timing systems as a funding priority.
I had been working on line-follower robots with Arduino for some time, so I realized that an affordable, wireless and precise laser gate timing system made of easy to find components should be possible. Accounting for the different prices across the world, absolutely all of the components and parts needed for the complete system should cost around 100USD. This is a major price difference with other systems, considering that it has a very decent precision and has a wireless range that exceeds almost any Track and Field oval in the world.
The system consists of two finish line modules and one start line module.
An interesting link found among my daily reading