Federico Muelas_ Question for a Public art project

Archiver

Hi there,
My name is Federico Muelas and I'm doing a public art project for a festival
in Peekskill, and in the piece I have to control an array of bulbs with the
basic stamp. I'm working with relays and the thing is that i'm looking for
an easy and inexpensive way to light on-off the bulbs slowly once the relays
are closed or open.

Does anyone know a way to do it? may be using a capacitor-resistor
arrangement? the problem is that i'm working with AC... i guess

Thanks a lot!

Fede


you can find info about my work at www.federicomuelas.com

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Archiver

Hi,
How many lights and what size do you need to control?

AC Solid State Relays will work good in this application. I use them all the
time with Stamps in industrial controls to activate relays, solenoids and
motors.

If this is a non profit project I will let you have one of the PC boards I
use (Bare Board). It can control 16 devices AC/DC Input or Output with a Stamp 2
module.

If it is a commercial project contact me off list to discuss it.

Alan Bradford
Plasma Technologies

In a message dated 7/12/2004 9:01:19 PM Eastern Daylight Time,
d2ec@h... writes:
Hi there,
My name is Federico Muelas and I'm doing a public art project for a festival
in Peekskill, and in the piece I have to control an array of bulbs with the
basic stamp. I'm working with relays and the thing is that i'm looking for
an easy and inexpensive way to light on-off the bulbs slowly once the relays
are closed or open.

Does anyone know a way to do it? may be using a capacitor-resistor
arrangement? the problem is that i'm working with AC... i guess

Thanks a lot!

Fede


you can find info about my work at www.federicomuelas.com


[noparse][[/noparse]Non-text portions of this message have been removed]

Archiver

--- In basicstamps@yahoogroups.com, "D2 equipo creativo" <d2ec@h...>
wrote:
> Hi there,
> My name is Federico Muelas and I'm doing a public art project for a
festival
> in Peekskill, and in the piece I have to control an array of bulbs
with the
> basic stamp. I'm working with relays and the thing is that i'm
looking for
> an easy and inexpensive way to light on-off the bulbs slowly once
the relays
> are closed or open.
>
> Does anyone know a way to do it? may be using a capacitor-resistor
> arrangement? the problem is that i'm working with AC... i guess
>
> Thanks a lot!
>
> Fede


Hi,

Can you offer more information ?

are you asking to slowly dim the lights instead of just going On and
OFF ?

Have you looked at using DC instead of AC ? It makes the control
easier, but looses some of the peak brightness of the light. AND,
regular incandescant bulbs can be run on either.

And of course, how many channels are you looking into ?

Dave

Archiver

--- In basicstamps@yahoogroups.com, "Dave Mucha" <davemucha@j...>
wrote:
> --- In basicstamps@yahoogroups.com, "D2 equipo creativo" <d2ec@h...>
> wrote:
> > Hi there,
> > My name is Federico Muelas and I'm doing a public art project for a
> festival
> > in Peekskill, and in the piece I have to control an array of bulbs
> with the
> > basic stamp. I'm working with relays and the thing is that i'm
> looking for
> > an easy and inexpensive way to light on-off the bulbs slowly once
> the relays
> > are closed or open.
> >
> > Does anyone know a way to do it? may be using a capacitor-resistor
> > arrangement? the problem is that i'm working with AC... i guess
> >
> > Thanks a lot!
> >
> > Fede
>
>
> Hi,
>
> Can you offer more information ?
>
> are you asking to slowly dim the lights instead of just going On and
> OFF ?
>
> Have you looked at using DC instead of AC ? It makes the control
> easier, but looses some of the peak brightness of the light. AND,
> regular incandescant bulbs can be run on either.
>
> And of course, how many channels are you looking into ?
>
> Dave

Hi Dave, thanks a lot for replying,
I'm using 57 bulbs. And yes, what I was looking for was a easy way to slowly
dim the lights instead of just going On and Off.
So, do I need also 110v of DC current to light a bulb?
Thanks
F

Archiver

Hi Alan,
Thanks a lot for your response!, Yes , this is a project for a non-profit event,
meaning that there is not budget, but it totally worth. The thing is that since I
have to cotrol 57 Bulbs of 100W. I was thinking to multiplex the signal from the
basic stamp and then use relays, so don't worry about the relay boards but
thanks a lot for the offer. Just a question, Did you use those small mechanical
dip relays with AC. the one I'm using you put 120V AC at 2 Amps at the
contact rate, but with these small pins I wonder if i'll blow everything up.

thanks a lot

Fede


--- In basicstamps@yahoogroups.com, plasmastamp@a... wrote:
> Hi,
> How many lights and what size do you need to control?
>
> AC Solid State Relays will work good in this application. I use them all the
> time with Stamps in industrial controls to activate relays, solenoids and
> motors.
>
> If this is a non profit project I will let you have one of the PC boards I
> use (Bare Board). It can control 16 devices AC/DC Input or Output with a
Stamp 2
> module.
>
> If it is a commercial project contact me off list to discuss it.
>
> Alan Bradford
> Plasma Technologies
>
> In a message dated 7/12/2004 9:01:19 PM Eastern Daylight Time,
> d2ec@h... writes:
> Hi there,
> My name is Federico Muelas and I'm doing a public art project for a festival
> in Peekskill, and in the piece I have to control an array of bulbs with the
> basic stamp. I'm working with relays and the thing is that i'm looking for
> an easy and inexpensive way to light on-off the bulbs slowly once the relays
> are closed or open.
>
> Does anyone know a way to do it? may be using a capacitor-resistor
> arrangement? the problem is that i'm working with AC... i guess
>
> Thanks a lot!
>
> Fede
>
>
> you can find info about my work at www.federicomuelas.com
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]

Archiver

Hi Fede,
I do use the dip relays. The ones I use have a .3 amp rating, but you can get
larger PC mount relays. Make sure your circuit board etches are able to
handle the current. The relay leads are sized to handle the Max rated current.
Using relays will only achieve on and off conditions for the lights. Dimming
is not possible.
I drive all the relay coils with a transistor or driver IC to protect the
Stamp output pins.

Good Luck,
Alan Bradford
Plasma Technologies

In a message dated 7/22/2004 1:39:31 PM Eastern Daylight Time,
d2ec@h... writes:
Hi Alan,
Thanks a lot for your response!, Yes , this is a project for a non-profit
event,
meaning that there is not budget, but it totally worth. The thing is that
since I
have to cotrol 57 Bulbs of 100W. I was thinking to multiplex the signal from
the
basic stamp and then use relays, so don't worry about the relay boards but
thanks a lot for the offer. Just a question, Did you use those small
mechanical
dip relays with AC. the one I'm using you put 120V AC at 2 Amps at the
contact rate, but with these small pins I wonder if i'll blow everything up.

thanks a lot

Fede


--- In basicstamps@yahoogroups.com, plasmastamp@a... wrote:
> Hi,
> How many lights and what size do you need to control?
>
> AC Solid State Relays will work good in this application. I use them all
the
> time with Stamps in industrial controls to activate relays, solenoids and
> motors.
>
> If this is a non profit project I will let you have one of the PC boards I
> use (Bare Board). It can control 16 devices AC/DC Input or Output with a
Stamp 2
> module.
>
> If it is a commercial project contact me off list to discuss it.
>
> Alan Bradford
> Plasma Technologies
>
> In a message dated 7/12/2004 9:01:19 PM Eastern Daylight Time,
> d2ec@h... writes:
> Hi there,
> My name is Federico Muelas and I'm doing a public art project for a
festival
> in Peekskill, and in the piece I have to control an array of bulbs with the
> basic stamp. I'm working with relays and the thing is that i'm looking for
> an easy and inexpensive way to light on-off the bulbs slowly once the
relays
> are closed or open.
>
> Does anyone know a way to do it? may be using a capacitor-resistor
> arrangement? the problem is that i'm working with AC... i guess
>
> Thanks a lot!
>
> Fede
>
>
> you can find info about my work at www.federicomuelas.com
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]


[noparse][[/noparse]Non-text portions of this message have been removed]