Musical and flashing lights water fountain
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From: Grant on 3 Jul 2010 23:32 On Sat, 03 Jul 2010 17:44:40 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Sun, 04 Jul 2010 08:36:39 +1000, Grant <omg(a)grrr.id.au> wrote: > >>On Sat, 03 Jul 2010 10:58:09 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >> >>>On Sat, 03 Jul 2010 08:20:01 -0500, andy baxter >>><news(a)earthsong.null.free-online.co.uk> wrote: >>> >>>>On Sat, 03 Jul 2010 08:29:59 -0400, Spehro Pefhany wrote: >>>> >>>>> On Sat, 03 Jul 2010 07:02:29 -0500, the renowned andy baxter >>>>> <news(a)earthsong.null.free-online.co.uk> wrote: >>>>> >>>>> This idea was around more than 40 years ago. They called it a "Color >>>>> Organ". >>>> >>>>OK - I remember seeing those things in discos but I didn't know that's >>>>how they worked. >>>> >>>>> >>>>>> If you wanted to be really clever you could store the results in a >>>>>>delay buffer and shift it every 0.2-0.5 sec, and use this to drive a >>>>>>line of tricolour LEDs. >>>>> >>>>> Linear time is kind of boring and not very artistic. There might be >>>>> better ways. >>>>> >>>>> >>>> >>>>Another way if you had the cpu speed would be to make the line of LEDs >>>>follow a wave equation with different wave speeds for different channels. >>>>The effect would be similar but maybe a bit more interesting to look at. >>> >>>See... >>> >>>http://analog-innovations.com/Disco.PDF >>> >>>(I did the lighting and boom-box for Bobby McGee's on I17 (north >>>Phoenix) around 1980 ;-) >> >>That circuit is either overly complex, or, does a much better job than >>the 'Musicolour', a magazine (Electronics Australia) project I built >>as a teenager ;) The musicolour had three channels and the bass channel >>beat with the mains frequency on some sustained low notes, quite strange. > >I have three channels of state-variable type filters to sort which >colors go with which frequency, and the "beat" is extracted via >jam-locking a saw-tooth oscillator. I would have liked a beat option back then :) > >I wouldn't call it "overly complex... but it is manufacturable, quite >repeatable. I didn't mean complex in a bad sense, more in that it makes me wonder what the thing is doing it is doing with the extra parts, compared to a few simple bandpass filters driving triacs. > >> >>Is there a description or spec for your disco circuit somewhere? >> >>Grant. > >It's so straight forward you should be able to analyze it straight >away ;-) Well, I been away from electronics a long time, and your circuit seems to do a lot more than others I've seen. Didn't recognise state variable filters. Last ten years my work was mostly embedded controllers and very little support circuitry. The fun analog stuff I did in measurement and control systems was in late '70s early 80's. > > ...Jim Thompson Grant.
From: Winston on 4 Jul 2010 00:59 On 7/3/2010 6:23 PM, Greegor wrote: > On Jul 3, 2:24 pm, Winston<Wins...(a)bigbrother.net> wrote: >> On 7/3/2010 1:48 AM, effie wrote: >> >>> Hey >> >>> I am trying to make a dancing water fountain (meaning a water fountain >>> that moves >>> according to the music) and also that lights up (eg leds) according to the >>> music. >> >> Like a laminar flow fountain? >> >> http://www.atlanticfountains.com/images/leap.avi >> http://www.atlanticfountains.com/laminar_primer.htm >> http://www.atlanticfountains.com/images/LoveFtn/HaveYouEverSeen.wmv >> >> I don't know anything about them. >> >> Good luck! >> >> --Winston > > You're a funny guy, Winston! Now, two of us think so. SWMBO wants to buy me a tee shirt printed with an upside down logo that I can read easily: "Shut up. You are not funny." :) --Winston
From: Michael A. Terrell on 4 Jul 2010 06:39 Winston wrote: > > On 7/3/2010 6:23 PM, Greegor wrote: > > On Jul 3, 2:24 pm, Winston<Wins...(a)bigbrother.net> wrote: > >> On 7/3/2010 1:48 AM, effie wrote: > >> > >>> Hey > >> > >>> I am trying to make a dancing water fountain (meaning a water fountain > >>> that moves > >>> according to the music) and also that lights up (eg leds) according to the > >>> music. > >> > >> Like a laminar flow fountain? > >> > >> http://www.atlanticfountains.com/images/leap.avi > >> http://www.atlanticfountains.com/laminar_primer.htm > >> http://www.atlanticfountains.com/images/LoveFtn/HaveYouEverSeen.wmv > >> > >> I don't know anything about them. > >> > >> Good luck! > >> > >> --Winston > > > > You're a funny guy, Winston! > > Now, two of us think so. > > SWMBO wants to buy me a tee shirt printed with an upside down logo > that I can read easily: > > "Shut up. You are not funny." > > :) What? She's too cheap to have it tattoed on your forehead? ;-) -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.
From: Gary Peek on 4 Jul 2010 20:30 effie wrote: > Hey > > I am trying to make a dancing water fountain (meaning a water fountain > that moves > according to the music) and also that lights up (eg leds) according to the > music. > Anyone can help me please? Any circuits or ideas will be appreciated These folks offer some products for that: www.fountaineer.com/ --- news://freenews.netfront.net/ - complaints: news(a)netfront.net ---
From: Paul Hovnanian P.E. on 5 Jul 2010 00:02
Is that outfit that patented PWM of multicolor LEDs still around? I think they were called Color Kinetics and got bought out? Are they still as big a patent troll as they used to be? -- Paul Hovnanian mailto:Paul(a)Hovnanian.com ------------------------------------------------------------------ I could get a new lease on life but I need the first and last month in advance. |