ROBOLAB : 433


Robotics / RCX / ROBOLAB / 433	432 \| 434

Subject:	Re: lego light sensor's capability of distinguishing colors
Newsgroups:	lugnet.robotics.rcx, lugnet.robotics.rcx.robolab
Date:	Mon, 27 Jun 2005 21:47:52 GMT
Viewed:	5916 times

In lugnet.robotics.rcx, Elizabeth Mabrey wrote: > Hi > Just wonder if there is anyone who has attempted to have lego light sensor > to distinguish more colors than just black & white. Blue is too close to > black... white is too close to white... My guess is you would have to use colour filters to get reasonable results. I did toy with that idea for doing a colour photocopier once, but haven't got around to actually testing it yet. The downside is a 3-colour scanner would either use 3 light sensors (and 3 inputs), or a lot of complicated logic to get 1 sensor to read all 3 colours. ROSCO

Message has 1 Reply:

		Re: lego light sensor's capability of distinguishing colors
(...) How about one sensor with a color wheel the RCX can drive (this is how just about all NASA spacecraft take those beautiful pictures)? Another option that might work (read: I've not tested this at all) is using more than one color of light to (...) (19 years ago, 28-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)

Message is in Reply To:

		lego light sensor's capability of distinguishing colors
Hi Just wonder if there is anyone who has attempted to have lego light sensor to distinguish more colors than just black & white. Blue is too close to black... white is too close to white... ---...--- -------- Elizabeth Mabrey (19 years ago, 27-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)

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