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Article #92Re: Best way to power array of LEDs?
From: Tony Williams
Date: Thu, 05 Dec 2002 16:33
Date: Thu, 05 Dec 2002 16:33
31 lines
2763 bytes
2763 bytes
In article <c9ruuu87bn6t539n1se6ejueb1u1lia0j6@4ax.com>,
Spehro Pefhany <speff@interlog.com> wrote:
> <tonyw@ledelec.demon.co.uk> wrote:
> > Neither have we squeezed a 555 and/or a PIC into
> > this thread........... yet.
> Tony: you missed my earlier message?
Didn't miss it Speff, but we hadn't squeezed the
very last drop out of the current source idea.
> >> I wonder why people are so fascinated by LEDs?
> You can hook them up to a 555? <<
> I hear tell PICs can drive them too. ;-)
Are you talking about the chap, (and I prefer to
remain anon please Speff), who did this stupid perp?
20mA
+Supply---->----/\/\---+-----|>|---- 0v.
| LED
PIC port pin-----------+
Had this brilliant idea that could could turn
the LED On/Off by toggling the port pin from an
input, to an output at logic 0.
--
Tony Williams.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,4ef4c9d4aea85e1f X-Google-Attributes: gid112d1e,public X-Google-Thread: 10d137,4ef4c9d4aea85e1f X-Google-Attributes: gid10d137,public X-Google-Thread: 1131b0,4ef4c9d4aea85e1f X-Google-Attributes: gid1131b0,public X-Google-Thread: 1118be,4ef4c9d4aea85e1f X-Google-Attributes: gid1118be,public X-Google-Thread: 103407,4ef4c9d4aea85e1f X-Google-Attributes: gid103407,public X-Google-ArrivalTime: 2002-12-05 10:44:27 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!kibo.news.demon.net!news.demon.co.uk!demon!ledelec.demon.co.uk!tonyw From: Tony Williams <tonyw@ledelec.demon.co.uk> Newsgroups: sci.electronics.components,sci.electronics.design,alt.engineering.electrical,aus.electronics,sci.electronics.repair Subject: Re: Best way to power array of LEDs? Date: Thu, 05 Dec 2002 16:33:44 +0000 (GMT) Organization: None Lines: 31 Message-ID: <4ba0275featonyw@ledelec.demon.co.uk> References: <Rsan9.14070$qh1.1622310@news.ca.inter.net> <ank9ep$lumv$1@hades.csu.net> <anku2n$5so$1@news.wave.co.nz> <7tGLdeAS6fn9EwBv@jmwa.demon.co.uk> <apvlvu$n2c$1@reader1.panix.com> <KVdHjAAjM3w9Ew8l@jmwa.demon.co.uk> <aq17gb$7ut$1@reader1.panix.com> <slrnasg1o7.1t5.Znospam+noZs_0211@hpb13799Z.Zboi.hpZ.com.invalid> <aseln1$jbb$1@reader1.panix.com> <Rm2H9.4457$5P3.213056@newsfeed.slurp.net> <4dqpuugil5jens3iu7uprml0hdjl5e5dqs@4ax.com> <4ba01ef90etonyw@ledelec.demon.co.uk> <c9ruuu87bn6t539n1se6ejueb1u1lia0j6@4ax.com> NNTP-Posting-Host: ledelec.demon.co.uk X-Trace: news.demon.co.uk 1039113866 299 194.222.56.201 (5 Dec 2002 18:44:26 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Thu, 5 Dec 2002 18:44:26 +0000 (UTC) User-Agent: Pluto/1.14i (RISC-OS/3.60)