Thread: Sonar Sensors legal
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Unread 18-02-2010, 05:49
Foster Foster is offline
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Re: Sonar Sensors legal
Treat it as an analog device. The value that the sensor puts out is higher the closer the target is. You'll need to do some minor testing: Put the sensor on the robot. Put the ball 5" away. Take a reading. Move the ball 6" away, take a reading. Move the ball, read, repeat.

From the data points collected you should be able to create a formula that will convert the value into distance. (like .1 volt ~ 1"). The formula will depend on the IR sensor that you use. If you buy the ones from the Robodyssey.com IR sensors page they come with a little BasicX program that shows the distance formula.

Good luck!
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