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Author Topic: Sharp Distance Sensor GP2Y0A02YK  (Read 5028 times)

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Offline RatfinkTopic starter

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Sharp Distance Sensor GP2Y0A02YK
« on: May 06, 2007, 11:17:16 AM »
http://lis.epfl.ch/contest/flying07/docs/resources/GP2Y0A02YK.pdf

Looking at the datasheet it says it roughly takes about 50ms for the sharp sensors to update each reading meaning i would be able to get a maximum 20 different readings per second is this bit correct?

I have a stepper motor with a stepper motor controller where each step equates to about 1.8 degrees per step. Hence if i want to take readings from between 0-180 degrees i would have to have a 50ms delay between each step to get a full sweep of readings. If someone can confirm my reasoning would be glady appreciated.

Offline hgordon

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Re: Sharp Distance Sensor GP2Y0A02YK
« Reply #1 on: May 06, 2007, 02:02:48 PM »
Right - you could take 20 measurements per second. 

There's more information on the Sharp detectors here-
    http://www.acroname.com/robotics/info/articles/sharp/sharp.html

It would appear that the beam width is approx 10 deg, so you could experiment with whether you get better results by overlapping successive fields (i.e. measuring every 5 degrees instead of every 10 degrees)

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