Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Tomas on January 12, 2009, 04:06:08 AM

Title: Creating your own IR sensor versus using Sharp GP2Y0A02YK0F
Post by: Tomas on January 12, 2009, 04:06:08 AM

So, I think the accuracy may be lower on the home made one, and good distance will be a problem.

The thing is that me and some pals have a project with a pretty high speed robot, so long and accurate distance sensoring is necassary. But we also need quite alot of sensors (6 IR sensors). Now should we make 6 our self or should we buy the sensors, at maybe 120-130 USD total?

Title: Re: Creating your own IR sensor versus using Sharp GP2Y0A02YK0F
Post by: SmAsH on January 12, 2009, 04:19:40 AM

how do you make them?

Title: Re: Creating your own IR sensor versus using Sharp GP2Y0A02YK0F
Post by: Tomas on January 12, 2009, 05:31:45 AM

http://www.societyofrobots.com/schematics_infraredemitdet.shtml

Title: Re: Creating your own IR sensor versus using Sharp GP2Y0A02YK0F
Post by: paulstreats on January 12, 2009, 06:29:45 AM

Those ir emitter detectors dont really work like the sharp rangefinders. The rangefinders detect the incoming angle of reflected light and calculate the distance depending upon that angle. The emitter/detector in the tutorial doesnt do this, is much much shorter distance and the output changes depending on object color, coeffieient etc....

Maybe just buy 1 rangefinder for distance measurement and make the other 4 yourself for proximity detection

Title: Re: Creating your own IR sensor versus using Sharp GP2Y0A02YK0F
Post by: airman00 on January 12, 2009, 06:31:19 AM

remember that you can reuse the Sharp IR sensors on later robots and projects as well