Countdown_timer.MPG

Boone Bricksters FIRST Lego League team We built this prototype for our research project for the 2009 FIRST Lego League Season, "Smart Move". Our idea is to put an electronic countdown timer at railroad crossings where there are only lights to tell the driver exactly how many seconds until the train crosses the tracks. This would be especially useful where there are multiple tracks and a faster train hiding behind a slower one. ... Train crossing safety Boone Bricksters FIRST Lego League Team ...
Author: jdh2024; Tags: Train crossing safety Boone Bricksters FIRST Lego League Team


















