Article View: sci.electronics
Article #8121Design a bar graph
From: Ken Tindle
Date: Sat, 03 Nov 1990 04:03
Date: Sat, 03 Nov 1990 04:03
19 lines
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1514 bytes
I have three binary lines, for eight possible states (yeah, oh wow). How can one light seven LED's from this, with zero having all LED's off and seven lighting all seven of them, in bar graph fashion? A dot display is easy, but bar is tougher. As a final touch, one should tax each digital line with but one standard TTL load. I can think of two ways to implement this, but they both seem like too many parts have to be used. I wonder if anyone has a brainstorm out there. It's a bit surprising how tough this problem was (at least to me). In real life, it wouldn't be a big deal to just use a moving dot, but I like to tell Joe A. Electron what to do, not have him laugh at me. I hate it when that happens! --------------------------\ /----------------------------------------------- INTERNET:tindle@ms.uky.edu | "Could you please continue the petty bickering? BITNET: tindle@ukma.bitnet | I find it most intriguing." --- Data, Ken Tindle - Lexington, KY | Star Trek, The Next Generation, "Haven" --------------------------/ \-----------------------------------------------
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!usenet.ins.cwru.edu!ukma!tindleShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!usenet.ins.cwru.edu!ukma!tindle From: tindle@ms.uky.edu (Ken Tindle) Newsgroups: sci.electronics Subject: Design a bar graph Message-ID: <16307@s.ms.uky.edu> Date: 3 Nov 90 04:03:30 GMT Reply-To: tindle@ms.uky.edu (Ken Tindle) Distribution: na Organization: U of Kentucky, Mathematical Sciences Lines: 19