light and sound
Archiver
Posts: 46,084
Dear members,
Would someone have ideas on how to connect
a 120+ W light and speaker? My idea is to make
an alarm for my wife that turns on the light slowly
along with volume on the speaker. I've got all the
timing and alarm stuff, but how do I vary control on
the light, like a dimmer? And how do I interface with
real 120v power from the wall?
Thanks much for you thoughts.
Jason
Would someone have ideas on how to connect
a 120+ W light and speaker? My idea is to make
an alarm for my wife that turns on the light slowly
along with volume on the speaker. I've got all the
timing and alarm stuff, but how do I vary control on
the light, like a dimmer? And how do I interface with
real 120v power from the wall?
Thanks much for you thoughts.
Jason
Comments
>
> Dear members,
>
> Would someone have ideas on how to connect
> a 120+ W light and speaker? My idea is to make
> an alarm for my wife that turns on the light slowly
> along with volume on the speaker. I've got all the
> timing and alarm stuff, but how do I vary control on
> the light, like a dimmer? And how do I interface with
> real 120v power from the wall?
>
> Thanks much for you thoughts.
>
> Jason
I know others will offer more conventional ways, but just for fun,
you can power a regualar incandescent light with DC.
And, if you use DC, you can use a pulse width control to run that
from a very low cost MOSFET.
You will not get the same brightness as a 120VAC light, but it is fun
to try different things.
Dave
http://www.visualmuses.com/chipcircuit/index.html
>--- In basicstamps@yahoogroups.com, j.belskus@c... wrote:
>>
>> Dear members,
>>
>> Would someone have ideas on how to connect
>> a 120+ W light and speaker? My idea is to make
>> an alarm for my wife that turns on the light slowly
>> along with volume on the speaker. I've got all the
>> timing and alarm stuff, but how do I vary control on
>> the light, like a dimmer? And how do I interface with
>> real 120v power from the wall?
>>
>> Thanks much for you thoughts.
>>
>> Jason
>
>
>I know others will offer more conventional ways, but just for fun,
>you can power a regualar incandescent light with DC.
>
>And, if you use DC, you can use a pulse width control to run that
>from a very low cost MOSFET.
>
>You will not get the same brightness as a 120VAC light, but it is fun
>to try different things.
>
>
>Dave
Just as a matter of clarification the brightness of an incandescent light bulb will be unaffected by whether it's powered by AC or DC so long as the voltage is the same. A tungsten resistor in an air-tight envelope cares less what kind of voltage is passing through it to make it incandesce.
Bruce
to get enough current). In fact, 12-volt bulbs tend to be brighter for a
given wattage compared to a 120-volt bulb since their smaller filaments run
hotter and can be focused easier. It's probably too much trouble to
interface into a ramped AC Triac controller with the stamp, unless you're
trying for hundreds of watts of lighting.
Mike Sokol
mike@f...
www.fitsandstarts.com
" One should not increase, beyond what is necessary,
the number of entities required to explain anything"...
-William of Occam-
Original Message
From: "Bruce Bates" <bvbates@u...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 20, 2004 2:59 AM
Subject: Re: [noparse][[/noparse]basicstamps] Re: light and sound
> At 06:28 AM 5/20/04 +0000, Dave Mucha wrote:
> >--- In basicstamps@yahoogroups.com, j.belskus@c... wrote:
> >>
> >> Dear members,
> >>
> >> Would someone have ideas on how to connect
> >> a 120+ W light and speaker? My idea is to make
> >> an alarm for my wife that turns on the light slowly
> >> along with volume on the speaker. I've got all the
> >> timing and alarm stuff, but how do I vary control on
> >> the light, like a dimmer? And how do I interface with
> >> real 120v power from the wall?
> >>
> >> Thanks much for you thoughts.
> >>
> >> Jason
> >
> >
> >I know others will offer more conventional ways, but just for fun,
> >you can power a regualar incandescent light with DC.
> >
> >And, if you use DC, you can use a pulse width control to run that
> >from a very low cost MOSFET.
> >
> >You will not get the same brightness as a 120VAC light, but it is fun
> >to try different things.
> >
> >
> >Dave
> Just as a matter of clarification the brightness of an incandescent light
bulb will be unaffected by whether it's powered by AC or DC so long as the
voltage is the same. A tungsten resistor in an air-tight envelope cares less
what kind of voltage is passing through it to make it incandesce.
>
> Bruce
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
www.superbrightleds.com) would be bright enough for your application,
and easy to control with a stamp using a ULN2803 driver. A dimmer
control could be done with PWM, as Dave suggested. I recently replaced
a 120V bulb with a line array of green LEDs, 8000 mcd each, with a 45
degree display angle.
Dennis
Original Message
From: j.belskus@c... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=m6P276stUeq3IuTAEdXXtbDZFoRDz-COCNhdRE_4r-S-mQQx5omn3Rx0cQWlzJVGRDvzNjFy-NG-7pk]j.belskus@c...[/url
Sent: Wednesday, May 19, 2004 9:32 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] light and sound
Dear members,
Would someone have ideas on how to connect
a 120+ W light and speaker? My idea is to make
an alarm for my wife that turns on the light slowly
along with volume on the speaker. I've got all the
timing and alarm stuff, but how do I vary control on
the light, like a dimmer? And how do I interface with
real 120v power from the wall?
Thanks much for you thoughts.
Jason
Take a look at these kit dimmer modules, they are not that
expensive at 21-24 dollars, would handle all of the dimming functions for
either 120 or 240 VAC, and any of them could be interfaced to your Basic
Stamp for control. One of them is controlled with a 0-10 VDC input, and it
looks like the others are push-button control.
http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=3340&cgrfnbr=501&ctgys=
http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=431496&cgrfnbr=501&ctgys=
http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=431498&cgrfnbr=501&ctgys=
This last one is more expensive at 59 dollars, but is infrared remote
control as well.
http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=433674&cgrfnbr=501&ctgys=
Hope you find this helpful,
Tim
At 09:32 PM 5/19/2004, you wrote:
>Dear members,
>
>Would someone have ideas on how to connect
>a 120+ W light and speaker? My idea is to make
>an alarm for my wife that turns on the light slowly
>along with volume on the speaker. I've got all the
>timing and alarm stuff, but how do I vary control on
>the light, like a dimmer? And how do I interface with
>real 120v power from the wall?
>
>Thanks much for you thoughts.
>
>Jason
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
>Body of the message will be ignored.
>
>Yahoo! Groups Links
>
>
>
>
very useful for this. It uses an RF connection,
uses $15.00 off the shelf modules, and a complete
package can be had for $25.00 from X10.
The 'Firecracker' needs two pins to switch
from 0 to 5 volts to control it -- it's pretty
well documented. The X-10 modules can be dimmed,
too.
--- In basicstamps@yahoogroups.com, j.belskus@c... wrote:
>
> Dear members,
>
> Would someone have ideas on how to connect
> a 120+ W light and speaker? My idea is to make
> an alarm for my wife that turns on the light slowly
> along with volume on the speaker. I've got all the
> timing and alarm stuff, but how do I vary control on
> the light, like a dimmer? And how do I interface with
> real 120v power from the wall?
>
> Thanks much for you thoughts.
>
> Jason
thought you could control the light levels with x10... I'm not sure.
David
Original Message
From: Mike Sokol [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=2ywepKHxtbNsG6AUb3L5VPaO6-WyvkQt1yf2gtb7WlbfYWFWZdKZnSt-RE9fh3dhYJY7syElsWXgBkWP]mike@f...[/url
Sent: Thursday, May 20, 2004 6:45 AM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Re: light and sound
You can drive a 12-volt bulb from the ramped PCM output (yes, use a
MOSFET
to get enough current). In fact, 12-volt bulbs tend to be brighter for a
given wattage compared to a 120-volt bulb since their smaller filaments
run
hotter and can be focused easier. It's probably too much trouble to
interface into a ramped AC Triac controller with the stamp, unless
you're
trying for hundreds of watts of lighting.
Mike Sokol
mike@f...
www.fitsandstarts.com
" One should not increase, beyond what is necessary,
the number of entities required to explain anything"...
-William of Occam-
Original Message
From: "Bruce Bates" <bvbates@u...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, May 20, 2004 2:59 AM
Subject: Re: [noparse][[/noparse]basicstamps] Re: light and sound
> At 06:28 AM 5/20/04 +0000, Dave Mucha wrote:
> >--- In basicstamps@yahoogroups.com, j.belskus@c... wrote:
> >>
> >> Dear members,
> >>
> >> Would someone have ideas on how to connect
> >> a 120+ W light and speaker? My idea is to make
> >> an alarm for my wife that turns on the light slowly
> >> along with volume on the speaker. I've got all the
> >> timing and alarm stuff, but how do I vary control on
> >> the light, like a dimmer? And how do I interface with
> >> real 120v power from the wall?
> >>
> >> Thanks much for you thoughts.
> >>
> >> Jason
> >
> >
> >I know others will offer more conventional ways, but just for fun,
> >you can power a regualar incandescent light with DC.
> >
> >And, if you use DC, you can use a pulse width control to run that
> >from a very low cost MOSFET.
> >
> >You will not get the same brightness as a 120VAC light, but it is fun
> >to try different things.
> >
> >
> >Dave
> Just as a matter of clarification the brightness of an incandescent
light
bulb will be unaffected by whether it's powered by AC or DC so long as
the
voltage is the same. A tungsten resistor in an air-tight envelope cares
less
what kind of voltage is passing through it to make it incandesce.
>
> Bruce
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject
and
Body of the message will be ignored.
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
Yahoo! Groups Links
Tim
At 07:41 AM 5/20/2004, you wrote:
>Couldn't you just use something like x10 to interface to the ac line? I
>thought you could control the light levels with x10... I'm not sure.
>David
>
>
Original Message
>From: Mike Sokol [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=hl7H3GGuK9bjlx7EGywSUodFNDvwU58p1zLwMto-vPRo0CTlTUwVWHULbZkWAngZXhf21iCRBVkmg72X0Il_]mike@f...[/url
>Sent: Thursday, May 20, 2004 6:45 AM
>To: basicstamps@yahoogroups.com
>Subject: Re: [noparse][[/noparse]basicstamps] Re: light and sound
>
>You can drive a 12-volt bulb from the ramped PCM output (yes, use a
>MOSFET
>to get enough current). In fact, 12-volt bulbs tend to be brighter for a
>given wattage compared to a 120-volt bulb since their smaller filaments
>run
>hotter and can be focused easier. It's probably too much trouble to
>interface into a ramped AC Triac controller with the stamp, unless
>you're
>trying for hundreds of watts of lighting.
>
>Mike Sokol
>mike@f...
>www.fitsandstarts.com
>
>" One should not increase, beyond what is necessary,
>the number of entities required to explain anything"...
>-William of Occam-
>
>
>
Original Message
>From: "Bruce Bates" <bvbates@u...>
>To: <basicstamps@yahoogroups.com>
>Sent: Thursday, May 20, 2004 2:59 AM
>Subject: Re: [noparse][[/noparse]basicstamps] Re: light and sound
>
>
> > At 06:28 AM 5/20/04 +0000, Dave Mucha wrote:
> > >--- In basicstamps@yahoogroups.com, j.belskus@c... wrote:
> > >>
> > >> Dear members,
> > >>
> > >> Would someone have ideas on how to connect
> > >> a 120+ W light and speaker? My idea is to make
> > >> an alarm for my wife that turns on the light slowly
> > >> along with volume on the speaker. I've got all the
> > >> timing and alarm stuff, but how do I vary control on
> > >> the light, like a dimmer? And how do I interface with
> > >> real 120v power from the wall?
> > >>
> > >> Thanks much for you thoughts.
> > >>
> > >> Jason
> > >
> > >
> > >I know others will offer more conventional ways, but just for fun,
> > >you can power a regualar incandescent light with DC.
> > >
> > >And, if you use DC, you can use a pulse width control to run that
> > >from a very low cost MOSFET.
> > >
> > >You will not get the same brightness as a 120VAC light, but it is fun
> > >to try different things.
> > >
> > >
> > >Dave
> > Just as a matter of clarification the brightness of an incandescent
>light
>bulb will be unaffected by whether it's powered by AC or DC so long as
>the
>voltage is the same. A tungsten resistor in an air-tight envelope cares
>less
>what kind of voltage is passing through it to make it incandesce.
> >
> > Bruce
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
>and
>Body of the message will be ignored.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject
>and Body of the message will be ignored.
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
>Body of the message will be ignored.
>
>Yahoo! Groups Links
>
>
>
>