Challenge Problem: Design a system consisting of starting-line sensors, a start signal, and starting-line violation signals for each side lane of the race course. The judge should have a button that initiates the start sequence. A series of periodic beeps that mimic the rhythm of the words, “Ready, set, go!” should sound, with the final “go” being a loud and clearly distinguishable tone or buzzer. In addition, a green light or LED should illuminate when the “go” signal is sounded. If a vehicle crosses the starting line prematurely prior to the “go” signal, a red light should appear on the violating vehicle’s lane, and a special “violation” signal should be sounded to alert the judge.
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