Quote:
Originally Posted by Ninjastahr
Why not use a camera and a vertical line on the dashboard output?
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Because that would involve the complexity of programming a camera and running some form of vision processing. Using a light involves wiring a flashlight to a spike, and programming that spike to turn on and off on command.
Driving wise, the difference is you are in full control of the robot at all times, whereas if you were using a camera you have to relieve your control of the robot to your control loop. For teams without a strong programming group (or even teams with a strong programming group who just prefer to avoid sensors) a flashlight is a much simpler way to align your shooter rather than going through the trouble of using a camera.