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Article #1754Re: Cheap color sensor
From: Gordon Couger
Date: Sat, 09 Jan 1993 00:24
Date: Sat, 09 Jan 1993 00:24
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In article <1993Jan8.194916.8558@black.clarku.edu> kbasye@black.clarku.edu (Ken Basye) writes: > >I've been wondering lately about how one might build a very simple and >cheap color sensor. I have in mind something that would be fairly >reliable in providing 3 or perhaps even 4 bits of discrimination and >which would be fairly reliable given good input, e.g., having a >well-lit piece of colored construction paper put in front. > We are using some three color light emiting diodes as sensors. They appear to work well not as sensitive as photo diodes but they will work at reasonable light levels. I think we got them form LEDTRONICS some place in Calif. Good luck Gordon Gordon Couger AB5Dg Agriculture Engineering Oklahoma State University gcouger@olesun.agen.okstate.edu 405-744-6514 day 744-2794 evenings
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Newsgroups: comp.robotics Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!wupost!crcnis1.unl.edu!moe.ksu.ksu.edu!mimbres.cs.unm.edu!constellation!osuunx.ucc.okstate.edu!olesun!gcouger From: gcouger@olesun.okstate.edu (Gordon Couger) Subject: Re: Cheap color sensor Message-ID: <1993Jan9.002400.2169@osuunx.ucc.okstate.edu> Sender: news@osuunx.ucc.okstate.edu (USENET News System) Nntp-Posting-Host: olesun.agen.okstate.edu Organization: Oklahoma State University, Stillwater References: <1993Jan8.194916.8558@black.clarku.edu> Date: Sat, 9 Jan 1993 00:24:00 GMT Lines: 19