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whatever you do, dont buy a digital output one. I nearly made this mistake it was lucky i read the datasheet before placing an order. The digital ones only emit a single bit high/low output and so are preset to only go high at a specific range such as 30cm, anything outside of that range doesnt register, although you can supposedly change the preset range it still limits you to a set distance which is only really useful for something like a bump sensor
actually I'd use this one:http://www.acroname.com/robotics/parts/R144-GP2Y0A02YK.htmlIt's cheaper and has better range...
Why not this one, for $8.25? I definitely recommend this site, smaller prices and lots of goodies!http://www.junun.org/MarkIII/Info.jsp?item=73
Servo city is out of stock on the HS-311's! NOES!!!11!
ehhhh Id rather not have the wider viewing angle, that way I think I can more easily control what my robot is looking at.
I'd go with the GP2D12 or the GP2Y0A21YK (I've use them on 2 robots now, they do alright).You don't want to use anything that has a huge blind spot that gives false readings so I'd stay away from the 20cm to 150cm sensor unless you are going to back it up with another sensor. my $0.02
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