## RE: [beam] Help making a LED Fade in and Out.

Expand Messages
• Bill, Here is a vid of the QLF in action... www.robot.plus.com/Vids/qlf.avi 477KB I believe the randomness occurs when the four channels interact. If you were
Message 1 of 18 , Jun 2, 2005
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Bill,

Here is a vid of the QLF in action...
www.robot.plus.com/Vids/qlf.avi 477KB

I believe the randomness occurs when the four channels interact.
If you were to build just one channel it should be fairly consistent and

Neil

Common anode version
http://cgi.robot.plus.com/beam.php?msg=36830
Common cathode version
http://cgi.robot.plus.com/beam.php?msg=37959
And the addition of a LDR for randomness
http://cgi.robot.plus.com/beam.php?msg=38148

> -----Original Message-----
> From: beam@yahoogroups.com [mailto:beam@yahoogroups.com] On
> Behalf Of DrewB
> Sent: 02 June 2005 18:59
> To: beam@yahoogroups.com
> Subject: Re: [beam] Help making a LED Fade in and Out.
>
>
> http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html
• Drew, I m looking at the QLF6, since it requires technically 14 parts. I see that it has 5 leds. Now do these all fade in and out at same time or independently
Message 2 of 18 , Jun 2, 2005
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Drew,

I'm looking at the QLF6, since it requires technically 14 parts. I
see that it has 5 leds. Now do these all fade in and out at same
time or independently of one another?

I'm simply just wanting to have at the most 3 leds fade in and out
at the same time.

Also where it shows One Led at how many leds per output can i have?
Like for instance where led 1 is at could i have led's 1 & 2 on same
output?

Regards,
Bill

--- In beam@yahoogroups.com, DrewB <psycholist2000@y...> wrote:
> http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html
>
> SpectrumRunner3 is attached.
>
> LEDfader is also attached. (wished I knew who to
> credit)
>
> The first two circuits were designed to use
> multi-color LED's to display a wide variety of colors.
> To my understanding the QLF was a better fit to that
> task. The SpectrumRunner lacked some color
> combinations. (I doubt it would be noticable for your
> application)
>
> I found the last circuit, but can not remember where.
> I included it because it uses a '14, that should give
> you a choice of chips to use.
>
> As always, breadboard it first.
>
> DrewB
>
>
> --- duck04_1999 <duck04_1999@y...> wrote:
>
> > Hey Drew,
> >
> > Where can i find it at? In Wilfs file folder? I plan
> > on using it as
> > a bit more advanced POCmark hehe. Consiting of a few
> > leds mounted on
> > some brass tubing in a tower type form. Just
> > something to give my
> > other POCmark a mate. Since its been running for 3
> > yrs straight on a
> > single charge, provided by my 1ft x 6inch solar
> > pannel.
> >
> > Regards,
> > Bill
> >
> >
> >
> > --- In beam@yahoogroups.com, DrewB
> > <psycholist2000@y...> wrote:
> > > Hey Bill,
> > >
> > > Take a look at Wilf's SpectrumRunner or Quad LED
> > > You might only need one channel instead of all
> > four.
> > >
> > > its the closet i can think of right now.
> > > DrewB
> > >
> > > --- duck04_1999 <duck04_1999@y...> wrote:
> > >
> > > > I need help making a LED Fade In and Out. If i
> > build
> > > > a simple flip
> > > > flop and have the 2 leds on one side will that
> > work
> > > > to fade 2 leds in
> > > > and out at same time? Thus i could change the
> > speed
> > > > of it with a pot
> > > > in place of the base resistor on the transistor?
> > > >
> > > > Regards,
> > > > Bill
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Tired of spam? Yahoo! Mail has the best spam
> > protection around
> > > http://mail.yahoo.com
> >
> >
> >
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
• I think Novotill is the creator of LedFader. http://members.shaw.ca/novotill Juan Cubillo CostaRican Beamer!!! http://costaricabeam.solarbotics.net/
Message 3 of 18 , Jun 2, 2005
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I think Novotill is the creator of LedFader.
http://members.shaw.ca/novotill

Juan Cubillo
CostaRican Beamer!!!
http://costaricabeam.solarbotics.net/

__________________________________
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• Hmm... with all the schematics you so nicely revamp and post on your website, you should know the sources of the designs Juan. Stepan has done some excelent
Message 4 of 18 , Jun 2, 2005
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Hmm... with all the schematics you so nicely revamp and post on your website, you should know the  sources of the designs Juan. Stepan has done some excelent LED projects but if you meant the Quad LED Fader (QLF) circuit, that is my design.  8^)

The evolution of 8 versions of the QLF circuit was charted here: http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html

wilf
----- Original Message -----
Sent: Thursday, June 02, 2005 8:39 PM
Subject: Re: [beam] Re: Help making a LED Fade in and Out.

I think Novotill is the creator of LedFader.
http://members.shaw.ca/novotill

Juan Cubillo
CostaRican Beamer!!!
http://costaricabeam.solarbotics.net/

__________________________________
Discover Yahoo!
Get on-the-go sports scores, stock quotes, news and more. Check it out!
http://discover.yahoo.com/mobile.html
• LED 5 is used as a 2V voltage regulator for the 74HC14. There are 4 opamps so you can drive 4 LEDs or a 4 LED RGB LED but 3 LED RGBs are more common. Maybe
Message 5 of 18 , Jun 2, 2005
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LED 5 is used as a 2V voltage regulator for the 74HC14. There are 4 opamps so you can drive 4 LEDs or a 4 LED RGB LED but 3 LED RGBs  are more common. Maybe use the 4th output to drive a UC LED for special effect.   The 3 or 4 LEDs fade in and out independently at different rates. The mix of colors changes constantly generating very color in the spectrum.  With the parts shown the cycle time is a few seconds. Add the LDR as shown in QLF8 if you want to vary the cycle time depending on the ambient light level.

wilf
----- Original Message -----
Sent: Thursday, June 02, 2005 7:20 PM
Subject: [beam] Re: Help making a LED Fade in and Out.

Drew,

I'm looking at the QLF6, since it requires technically 14 parts. I
see that it has 5 leds. Now do these all fade in and out at same
time or independently of one another?

I'm simply just wanting to have at the most 3 leds fade in and out
at the same time.

Also where it shows One Led at how many leds per output can i have?
Like for instance where led 1 is at could i have led's 1 & 2 on same
output?

Regards,
Bill

--- In beam@yahoogroups.com, DrewB <psycholist2000@y...> wrote:
> http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html
>
> SpectrumRunner3 is attached.
>
> LEDfader is also attached. (wished I knew who to
> credit)
>
> The first two circuits were designed to use
> multi-color LED's to display a wide variety of colors.
> To my understanding the QLF was a better fit to that
> task. The SpectrumRunner lacked some color
> combinations. (I doubt it would be noticable for your
> application)
>
> I found the last circuit, but can not remember where.
> I included it because it uses a '14, that should give
> you a choice of chips to use.
>
> As always, breadboard it first.
>
> DrewB
>
>
> --- duck04_1999 <duck04_1999@y...> wrote:
>
> > Hey Drew,
> >
> > Where can i find it at? In Wilfs file folder? I plan
> > on using it as
> > a bit more advanced POCmark hehe. Consiting of a few
> > leds mounted on
> > some brass tubing in a tower type form. Just
> > something to give  my
> > other POCmark a mate. Since its been running for 3
> > yrs straight on a
> > single charge, provided by my 1ft x 6inch solar
> > pannel.
> >
> > Regards,
> > Bill
> >
> >
> >
> > --- In beam@yahoogroups.com, DrewB
> > <psycholist2000@y...> wrote:
> > > Hey Bill,
> > >
> > > Take a look at Wilf's SpectrumRunner or Quad LED
> > > You might only need one channel instead of all
> > four.
> > >
> > > its the closet i can think of right now.
> > > DrewB
> > >
> > > --- duck04_1999 <duck04_1999@y...> wrote:
> > >
> > > > I need help making a LED Fade In and Out. If i
> > build
> > > > a simple flip
> > > > flop and have the 2 leds on one side will that
> > work
> > > > to fade 2 leds in
> > > > and out at same time? Thus i could change the
> > speed
> > > > of it with a pot
> > > > in place of the base resistor on the transistor?
> > > >
> > > > Regards,
> > > > Bill
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Tired of spam?  Yahoo! Mail has the best spam
> > protection around
> > > http://mail.yahoo.com
> >
> >
> >
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com

• I meant UV LED. Sorry! ... From: Wilf Rigter To: beam@yahoogroups.com Sent: Thursday, June 02, 2005 9:12 PM Subject: Re: [beam] Re: Help making a LED Fade in
Message 6 of 18 , Jun 2, 2005
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I meant UV LED. Sorry!
----- Original Message -----
Sent: Thursday, June 02, 2005 9:12 PM
Subject: Re: [beam] Re: Help making a LED Fade in and Out.

LED 5 is used as a 2V voltage regulator for the 74HC14. There are 4 opamps so you can drive 4 LEDs or a 4 LED RGB LED but 3 LED RGBs  are more common. Maybe use the 4th output to drive a UC LED for special effect.   The 3 or 4 LEDs fade in and out independently at different rates. The mix of colors changes constantly generating very color in the spectrum.  With the parts shown the cycle time is a few seconds. Add the LDR as shown in QLF8 if you want to vary the cycle time depending on the ambient light level.

wilf
----- Original Message -----
Sent: Thursday, June 02, 2005 7:20 PM
Subject: [beam] Re: Help making a LED Fade in and Out.

Drew,

I'm looking at the QLF6, since it requires technically 14 parts. I
see that it has 5 leds. Now do these all fade in and out at same
time or independently of one another?

I'm simply just wanting to have at the most 3 leds fade in and out
at the same time.

Also where it shows One Led at how many leds per output can i have?
Like for instance where led 1 is at could i have led's 1 & 2 on same
output?

Regards,
Bill

--- In beam@yahoogroups.com, DrewB <psycholist2000@y...> wrote:
> http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html
>
> SpectrumRunner3 is attached.
>
> LEDfader is also attached. (wished I knew who to
> credit)
>
> The first two circuits were designed to use
> multi-color LED's to display a wide variety of colors.
> To my understanding the QLF was a better fit to that
> task. The SpectrumRunner lacked some color
> combinations. (I doubt it would be noticable for your
> application)
>
> I found the last circuit, but can not remember where.
> I included it because it uses a '14, that should give
> you a choice of chips to use.
>
> As always, breadboard it first.
>
> DrewB
>
>
> --- duck04_1999 <duck04_1999@y...> wrote:
>
> > Hey Drew,
> >
> > Where can i find it at? In Wilfs file folder? I plan
> > on using it as
> > a bit more advanced POCmark hehe. Consiting of a few
> > leds mounted on
> > some brass tubing in a tower type form. Just
> > something to give  my
> > other POCmark a mate. Since its been running for 3
> > yrs straight on a
> > single charge, provided by my 1ft x 6inch solar
> > pannel.
> >
> > Regards,
> > Bill
> >
> >
> >
> > --- In beam@yahoogroups.com, DrewB
> > <psycholist2000@y...> wrote:
> > > Hey Bill,
> > >
> > > Take a look at Wilf's SpectrumRunner or Quad LED
> > > You might only need one channel instead of all
> > four.
> > >
> > > its the closet i can think of right now.
> > > DrewB
> > >
> > > --- duck04_1999 <duck04_1999@y...> wrote:
> > >
> > > > I need help making a LED Fade In and Out. If i
> > build
> > > > a simple flip
> > > > flop and have the 2 leds on one side will that
> > work
> > > > to fade 2 leds in
> > > > and out at same time? Thus i could change the
> > speed
> > > > of it with a pot
> > > > in place of the base resistor on the transistor?
> > > >
> > > > Regards,
> > > > Bill
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Tired of spam?  Yahoo! Mail has the best spam
> > protection around
> > > http://mail.yahoo.com
> >
> >
> >
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com

• Ah Wilf, sorta what i want but not quite. On the QLF6 how many leds can i put in series where LED 1 is? This is what i want to know. Regards, Bill P.S. sorry
Message 7 of 18 , Jun 3, 2005
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Ah Wilf, sorta what i want but not quite. On the QLF6 how many leds
can i put in series where LED 1 is? This is what i want to know.

Regards,
Bill

P.S. sorry for any confusion here lol, trying my best to explain.

--- In beam@yahoogroups.com, "Wilf Rigter" <wrigter@d...> wrote:
> I meant UV LED. Sorry!
> ----- Original Message -----
> From: Wilf Rigter
> To: beam@yahoogroups.com
> Sent: Thursday, June 02, 2005 9:12 PM
> Subject: Re: [beam] Re: Help making a LED Fade in and Out.
>
>
> LED 5 is used as a 2V voltage regulator for the 74HC14. There
are 4 opamps so you can drive 4 LEDs or a 4 LED RGB LED but 3 LED
RGBs are more common. Maybe use the 4th output to drive a UC LED
for special effect. The 3 or 4 LEDs fade in and out independently
at different rates. The mix of colors changes constantly generating
very color in the spectrum. With the parts shown the cycle time is
a few seconds. Add the LDR as shown in QLF8 if you want to vary the
cycle time depending on the ambient light level.
>
> wilf
> ----- Original Message -----
> From: duck04_1999
> To: beam@yahoogroups.com
> Sent: Thursday, June 02, 2005 7:20 PM
> Subject: [beam] Re: Help making a LED Fade in and Out.
>
>
> Drew,
>
> I'm looking at the QLF6, since it requires technically 14
parts. I
> see that it has 5 leds. Now do these all fade in and out at
same
> time or independently of one another?
>
> I'm simply just wanting to have at the most 3 leds fade in and
out
> at the same time.
>
> Also where it shows One Led at how many leds per output can i
have?
> Like for instance where led 1 is at could i have led's 1 & 2
on same
> output?
>
> Regards,
> Bill
>
>
>
> --- In beam@yahoogroups.com, DrewB <psycholist2000@y...> wrote:
> >
http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html
> >
> > SpectrumRunner3 is attached.
> >
> > LEDfader is also attached. (wished I knew who to
> > credit)
> >
> > The first two circuits were designed to use
> > multi-color LED's to display a wide variety of colors.
> > To my understanding the QLF was a better fit to that
> > task. The SpectrumRunner lacked some color
> > combinations. (I doubt it would be noticable for your
> > application)
> >
> > I found the last circuit, but can not remember where.
> > I included it because it uses a '14, that should give
> > you a choice of chips to use.
> >
> > As always, breadboard it first.
> >
> > DrewB
> >
> >
> > --- duck04_1999 <duck04_1999@y...> wrote:
> >
> > > Hey Drew,
> > >
> > > Where can i find it at? In Wilfs file folder? I plan
> > > on using it as
> > > a bit more advanced POCmark hehe. Consiting of a few
> > > leds mounted on
> > > some brass tubing in a tower type form. Just
> > > something to give my
> > > other POCmark a mate. Since its been running for 3
> > > yrs straight on a
> > > single charge, provided by my 1ft x 6inch solar
> > > pannel.
> > >
> > > Regards,
> > > Bill
> > >
> > >
> > >
> > > --- In beam@yahoogroups.com, DrewB
> > > <psycholist2000@y...> wrote:
> > > > Hey Bill,
> > > >
> > > > Take a look at Wilf's SpectrumRunner or Quad LED
> > > > You might only need one channel instead of all
> > > four.
> > > >
> > > > its the closet i can think of right now.
> > > > DrewB
> > > >
> > > > --- duck04_1999 <duck04_1999@y...> wrote:
> > > >
> > > > > I need help making a LED Fade In and Out. If i
> > > build
> > > > > a simple flip
> > > > > flop and have the 2 leds on one side will that
> > > work
> > > > > to fade 2 leds in
> > > > > and out at same time? Thus i could change the
> > > speed
> > > > > of it with a pot
> > > > > in place of the base resistor on the transistor?
> > > > >
> > > > > Regards,
> > > > > Bill
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > __________________________________________________
> > > > Do You Yahoo!?
> > > > Tired of spam? Yahoo! Mail has the best spam
> > > protection around
> > > > http://mail.yahoo.com
> > >
> > >
> > >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam protection
around
> > http://mail.yahoo.com
>
>
>
>
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of Service.
• Hi everyone, I was looking at these solar motors with gearboxes and was wondering if they would be suitable for BEAM applications. Linky:
Message 8 of 18 , Jun 4, 2005
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Hi everyone,

I was looking at these solar motors with gearboxes and was wondering if
they would be suitable for BEAM applications.

http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=2565&type=6&path=13x159x483
<http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=2565&type=6&path=13x159x483>

Thanks

Patrick
• From the description on that page (and comparing the motor on page ), they
Message 9 of 18 , Jun 6, 2005
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From the description on that page (and comparing the motor on page
<http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=483&type=5&path=13x159>),
they definitely look suitable for BEAM applications. The information
does not include things like weight & size of the assembly but overall
these should work out. The only reservation I have from the picture
there is the way the output shaft is shown jutting out. There doesn't
seem to be any bushing around it. I wonder if it will take cantilever

Dilip
------------------------------------------
Patrick Kelly wrote:

>Hi everyone,
>
>I was looking at these solar motors with gearboxes and was wondering if
>they would be suitable for BEAM applications.
>
>http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=2565&type=6&path=13x159x483
><http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=2565&type=6&path=13x159x483>
>
>Thanks
>
>Patrick
>
>
• ... ), ... Don t know what a cantilever load is, but the shaft looks solderable so
Message 10 of 18 , Jun 6, 2005
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--- In beam@yahoogroups.com, Dilip Sathe <sathe_dilip@b...> wrote:
> From the description on that page (and comparing the motor on page
>
<http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=483&type=5&path=13x159>),

> they definitely look suitable for BEAM applications. The information
> does not include things like weight & size of the assembly but overall
> these should work out. The only reservation I have from the picture
> there is the way the output shaft is shown jutting out. There doesn't
> seem to be any bushing around it. I wonder if it will take cantilever
>
> Dilip

Don't know what a cantilever load is, but the shaft looks solderable
so mounting shouldn't be that bad. The motor works at low voltages,
definately a plus for BEAM applications, but the current draw isn't
listed so its hard to tell how good it is.

Hope this helped,
Robert Schwartz
• I ve got a HERBIE setup like a Photopopper, and I m looking for a battery combination to power it. I am thinking a small coin style battery, since weight is an
Message 11 of 18 , Jun 6, 2005
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I've got a HERBIE setup like a Photopopper, and I'm looking for a battery combination to power it.
I am thinking a small coin style battery, since weight is an issue. Any suggestions?

Ben

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• ... battery combination to power it. ... Any suggestions? ... The batteries at solarbotics are pretty small. A 4.8V Nicad like BattR11 should provide a pretty
Message 12 of 18 , Jun 6, 2005
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--- In beam@yahoogroups.com, Ben Micklin <kcimb@y...> wrote:
> I've got a HERBIE setup like a Photopopper, and I'm looking for a
battery combination to power it.
> I am thinking a small coin style battery, since weight is an issue.
Any suggestions?
>
> Ben
>
The batteries at solarbotics are pretty small. A 4.8V Nicad like
BattR11 should provide a pretty good power supply for a herbie. If
that is too big a smaller 3.6V pack should still provide a large
enough charge to power the herbie for a while.
• I was referring to this motor on that page Miniature Solar Motor - 0.7 to 5.0 Volts Priced From: 1.48 1.79 inc. VAT Precision low inertia motor ideal for low
Message 13 of 18 , Jun 7, 2005
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I was referring to this motor on that page

Miniature Solar Motor - 0.7 to 5.0 Volts
Priced From:
€1.48 €1.79 inc. VAT
Precision low inertia motor ideal for low power applications such as solar modules and cells. Starting current only 10mA. Voltage range 0.7 to 5.0V (2V nominal).

it compares well with the description on the page for the gear box + solar motor and the order code matches.  So the starting current is specified at 10mA.  Pretty good.

Cantilever is when something is supported at one end only and load applied at the other end (or along the length) - and I am talking about a weight or torsional load not the rotational load caused by the shaft trying to turn something.  So let us say you use the motor+gearbox combo to drive a wheel of a car.  If the wheel is mounted at the very end of the shaft, the weight of the car will exert a much larger load than when the wheel is mounted very close to the gearbox.  When the shaft is not supported properly with a bush/sleeve bearing, the load can affect the gear train & cause other problems.

Hope this explains it.

Dilip
==================================================
Robert Schwartz wrote:
```--- In beam@yahoogroups.com, Dilip Sathe <sathe_dilip@b...> wrote:
```
``` From the description on that page (and comparing the motor on page

```
```<http://www.peats.com/cgi-bin/shop/db.cgi?view=1&id=483&type=5&path=13x159>),

```
```they definitely look suitable for BEAM applications.  The information
does not include things like weight & size of the assembly but overall
these should work out.  The only reservation I have from the picture
there is the way the output shaft is shown jutting out.  There doesn't
seem to be any bushing around it.  I wonder if it will take cantilever
```Don't know what a cantilever load is, but the shaft looks solderable