Quote:
Originally Posted by ~Cory~
What do you want to track? Distance to a goal? Distance to a wall?
An ultrasonic sensor will give only distance. A camera can give distances and much more, but is significantly harder to program.
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By mounting the ultrasonic on a servo, direction becomes available.
Last year's Good Idea that would have won an engineering award (given that the winner used the ultrasonic like we did, without the servo for a search capability) if more than one of the kids who talked to a Judge had known about it
There's a team prep lesson in there...