Here a Demonstration of my Flying Start Lap Timer, based on an Arduino and infrared light bridge and some big 7 Segment Displays and Thermal Printer.
Each Monday is ArduinoMonday here at Adafruit! Be sure to check out our posts, tutorials and new Arduino related products. Adafruit manufactures the Arduino right here in the United States in cooperation with arduino.cc. We have a huge selection of Arduino accessories and all the code and tutorials to get you up and running in no time!