I'm looking for some help with the creation of a tidal clock. It will
use LED lights to show the height at various times of the day. If
anyone would be interested in working on this project please let me
know. I may have an opportunity to do a public project and I would be
able to pay you.
Sounds like a fun project - do you intend to use some sort of webservice call, or actually measure the tides manually? I've thought about making something like this for fun, but never put any time towards it... yet
On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com> wrote: > Hello,
> I'm looking for some help with the creation of a tidal clock. It will > use LED lights to show the height at various times of the day. If > anyone would be interested in working on this project please let me > know. I may have an opportunity to do a public project and I would be > able to pay you.
> Thanks.
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
-- Sam Sandberg
"Where is fancy bread? In the heart or in the head?" -Willy Wonka
Thanks for responding. I'm thinking of using a web service. It will be a piece that will be located in an elementary school. Do you have much experience working with Arduino's, LED's, stepper motors and the programming for them?
Best, jen
--- On Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com> wrote:
From: Sam Sandberg <sam.sandb...@gmail.com> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock To: nycresistormicrocontrollers@googlegroups.com Date: Tuesday, August 17, 2010, 2:03 PM
Sounds like a fun project - do you intend to use some sort of webservice call, or actually measure the tides manually? I've thought about making something like this for fun, but never put any time towards it... yet
-Sam
On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com> wrote:
Hello,
I'm looking for some help with the creation of a tidal clock. It will
use LED lights to show the height at various times of the day. If
anyone would be interested in working on this project please let me
know. I may have an opportunity to do a public project and I would be
able to pay you.
Thanks.
--
You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group.
To post to this group, send email to nycresistormicrocontrollers@googlegroups.com.
To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com.
On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <ife...@yahoo.com> wrote: > Hello Sam,
> Thanks for responding. I'm thinking of using a web service. It will be a > piece that will be located in an elementary school. Do you have much > experience working with Arduino's, LED's, stepper motors and the programming > for them?
> Best, > jen
> --- On *Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com>* wrote:
> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock > To: nycresistormicrocontrollers@googlegroups.com > Date: Tuesday, August 17, 2010, 2:03 PM
> Sounds like a fun project - do you intend to use some sort of webservice > call, or actually measure the tides manually? I've thought about making > something like this for fun, but never put any time towards it... yet
> -Sam
> On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com<http://mc/compose?to=ife...@yahoo.com> > > wrote:
> Hello,
> I'm looking for some help with the creation of a tidal clock. It will > use LED lights to show the height at various times of the day. If > anyone would be interested in working on this project please let me > know. I may have an opportunity to do a public project and I would be > able to pay you.
> "Where is fancy bread? In the heart or in the head?" > -Willy Wonka
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
My hardware experience is unfortunately very limited. I have always been a software guy, but recently learned about Arduino and have done some preliminary messing around there with hardware.
I'm definitely interested in the project, but not sure I'm qualified for it. If you need help on the software side I'd be willing to help out, and if you find someone else to work with you I'd be interested in hearing about what you did and how you did it.
On Tue, Aug 17, 2010 at 2:34 PM, Justin Kelly <freef...@gmail.com> wrote: > LEDs and stepper motors yes, not so much with Arduino's. I have primarily > used Atmel chips with languages other then C.
> Justin
> On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <ife...@yahoo.com> wrote:
>> Hello Sam,
>> Thanks for responding. I'm thinking of using a web service. It will be a >> piece that will be located in an elementary school. Do you have much >> experience working with Arduino's, LED's, stepper motors and the programming >> for them?
>> Best, >> jen
>> --- On *Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com>* wrote:
>> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock >> To: nycresistormicrocontrollers@googlegroups.com >> Date: Tuesday, August 17, 2010, 2:03 PM
>> Sounds like a fun project - do you intend to use some sort of webservice >> call, or actually measure the tides manually? I've thought about making >> something like this for fun, but never put any time towards it... yet
>> -Sam
>> On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com<http://mc/compose?to=ife...@yahoo.com> >> > wrote:
>> Hello,
>> I'm looking for some help with the creation of a tidal clock. It will >> use LED lights to show the height at various times of the day. If >> anyone would be interested in working on this project please let me >> know. I may have an opportunity to do a public project and I would be >> able to pay you.
>> "Where is fancy bread? In the heart or in the head?" >> -Willy Wonka
>> -- >> You received this message because you are subscribed to the Google Groups >> "NYCResistor:Microcontrollers" group. >> To post to this group, send email to >> nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to >> nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
>> -- >> You received this message because you are subscribed to the Google Groups >> "NYCResistor:Microcontrollers" group. >> To post to this group, send email to >> nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to >> nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
-- Sam Sandberg
"Where is fancy bread? In the heart or in the head?" -Willy Wonka
I would imagine that you wouldn't need to much hardware for this. I remember reading somewhere that you can use a PHP script to take the information from the net, and then write a Processing program to interpret the PHP data, and then send it of to an Arduino. where it could do a number of things.
On Tue, Aug 17, 2010 at 2:37 PM, Sam Sandberg <sam.sandb...@gmail.com>wrote:
> My hardware experience is unfortunately very limited. I have always been a > software guy, but recently learned about Arduino and have done some > preliminary messing around there with hardware.
> I'm definitely interested in the project, but not sure I'm qualified for > it. If you need help on the software side I'd be willing to help out, and if > you find someone else to work with you I'd be interested in hearing about > what you did and how you did it.
> -Sam
> On Tue, Aug 17, 2010 at 2:34 PM, Justin Kelly <freef...@gmail.com> wrote:
>> LEDs and stepper motors yes, not so much with Arduino's. I have primarily >> used Atmel chips with languages other then C.
>> Justin
>> On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <ife...@yahoo.com> wrote:
>>> Hello Sam,
>>> Thanks for responding. I'm thinking of using a web service. It will be a >>> piece that will be located in an elementary school. Do you have much >>> experience working with Arduino's, LED's, stepper motors and the programming >>> for them?
>>> Best, >>> jen
>>> --- On *Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com>* wrote:
>>> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock >>> To: nycresistormicrocontrollers@googlegroups.com >>> Date: Tuesday, August 17, 2010, 2:03 PM
>>> Sounds like a fun project - do you intend to use some sort of webservice >>> call, or actually measure the tides manually? I've thought about making >>> something like this for fun, but never put any time towards it... yet
>>> -Sam
>>> On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com<http://mc/compose?to=ife...@yahoo.com> >>> > wrote:
>>> Hello,
>>> I'm looking for some help with the creation of a tidal clock. It will >>> use LED lights to show the height at various times of the day. If >>> anyone would be interested in working on this project please let me >>> know. I may have an opportunity to do a public project and I would be >>> able to pay you.
>>> "Where is fancy bread? In the heart or in the head?" >>> -Willy Wonka
>>> -- >>> You received this message because you are subscribed to the Google Groups >>> "NYCResistor:Microcontrollers" group. >>> To post to this group, send email to >>> nycresistormicrocontrollers@googlegroups.com. >>> To unsubscribe from this group, send email to >>> nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
>>> -- >>> You received this message because you are subscribed to the Google Groups >>> "NYCResistor:Microcontrollers" group. >>> To post to this group, send email to >>> nycresistormicrocontrollers@googlegroups.com. >>> To unsubscribe from this group, send email to >>> nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
>> -- >> You received this message because you are subscribed to the Google Groups >> "NYCResistor:Microcontrollers" group. >> To post to this group, send email to >> nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to >> nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > Sam Sandberg
> "Where is fancy bread? In the heart or in the head?" > -Willy Wonka
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> I would imagine that you wouldn't need to much hardware for this. I remember reading somewhere that you can use a PHP script to take the information from the net, and then write a Processing program to interpret the PHP data, and then send it of to an Arduino. where it could do a number of things.
> On Tue, Aug 17, 2010 at 2:37 PM, Sam Sandberg <sam.sandb...@gmail.com> wrote: > Jen,
> My hardware experience is unfortunately very limited. I have always been a software guy, but recently learned about Arduino and have done some preliminary messing around there with hardware.
> I'm definitely interested in the project, but not sure I'm qualified for it. If you need help on the software side I'd be willing to help out, and if you find someone else to work with you I'd be interested in hearing about what you did and how you did it.
> -Sam
> On Tue, Aug 17, 2010 at 2:34 PM, Justin Kelly <freef...@gmail.com> wrote: > LEDs and stepper motors yes, not so much with Arduino's. I have primarily used Atmel chips with languages other then C.
> Justin
> On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <ife...@yahoo.com> wrote: > Hello Sam,
> Thanks for responding. I'm thinking of using a web service. It will be a piece that will be located in an elementary school. Do you have much experience working with Arduino's, LED's, stepper motors and the programming for them?
> Best, > jen
> --- On Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com> wrote:
> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock > To: nycresistormicrocontrollers@googlegroups.com > Date: Tuesday, August 17, 2010, 2:03 PM
> Sounds like a fun project - do you intend to use some sort of webservice call, or actually measure the tides manually? I've thought about making something like this for fun, but never put any time towards it... yet
> -Sam
> On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com> wrote: > Hello,
> I'm looking for some help with the creation of a tidal clock. It will > use LED lights to show the height at various times of the day. If > anyone would be interested in working on this project please let me > know. I may have an opportunity to do a public project and I would be > able to pay you.
> Thanks.
> -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > Sam Sandberg
> "Where is fancy bread? In the heart or in the head?" > -Willy Wonka > -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > Sam Sandberg
> "Where is fancy bread? In the heart or in the head?" > -Willy Wonka > -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
Thanks everyone for all your responses. You all have been very generous with all your knowledge. I really appreciate it.
I gave my presentation in Maine yesterday as a finalist and I should here within a month if I received the project. I will keep you all posted.
Thanks again, If
--- On Fri, 8/20/10, Andy Rosenblum <esdad...@yahoo.com> wrote:
From: Andy Rosenblum <esdad...@yahoo.com> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock To: "nycresistormicrocontrollers@googlegroups.com" <nycresistormicrocontrollers@googlegroups.com> Cc: "nycresistormicrocontrollers@googlegroups.com" <nycresistormicrocontrollers@googlegroups.com> Date: Friday, August 20, 2010, 1:44 PM
If processing was used, it could display an image of the tidal clock as well as sending the tide info to the arduino.
- Andy On Aug 17, 2010, at 3:22 PM, Irving Derin <irving.de...@gmail.com> wrote:
I would imagine that you wouldn't need to much hardware for this. I remember reading somewhere that you can use a PHP script to take the information from the net, and then write a Processing program to interpret the PHP data, and then send it of to an Arduino. where it could do a number of things.
On Tue, Aug 17, 2010 at 2:37 PM, Sam Sandberg <sam.sandb...@gmail.com> wrote:
Jen, My hardware experience is unfortunately very limited. I have always been a software guy, but recently learned about Arduino and have done some preliminary messing around there with hardware.
I'm definitely interested in the project, but not sure I'm qualified for it. If you need help on the software side I'd be willing to help out, and if you find someone else to work with you I'd be interested in hearing about what you did and how you did it.
-Sam
On Tue, Aug 17, 2010 at 2:34 PM, Justin Kelly <freef...@gmail.com> wrote:
LEDs and stepper motors yes, not so much with Arduino's. I have primarily used Atmel chips with languages other then C.
Justin
On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <ife...@yahoo.com> wrote:
Hello Sam,
Thanks for responding. I'm thinking of using a web service. It will be a piece that will be located in an elementary school. Do you have much experience working with Arduino's, LED's, stepper motors and the programming for them?
Best, jen
--- On Tue, 8/17/10, Sam Sandberg <sam.sandb...@gmail.com> wrote:
From: Sam Sandberg <sam.sandb...@gmail.com> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock To: nycresistormicrocontrollers@googlegroups.com
Date: Tuesday, August 17, 2010, 2:03 PM
Sounds like a fun project - do you intend to use some sort of webservice call, or actually measure the tides manually? I've thought about making something like this for fun, but never put any time towards it... yet
-Sam
On Sat, Aug 14, 2010 at 8:13 PM, if <ife...@yahoo.com> wrote:
Hello,
I'm looking for some help with the creation of a tidal clock. It will
use LED lights to show the height at various times of the day. If
anyone would be interested in working on this project please let me
know. I may have an opportunity to do a public project and I would be
able to pay you.
Thanks.
--
You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group.
To post to this group, send email to nycresistormicrocontrollers@googlegroups.com.
To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com.
I forgot to mention that yesterday I was doing some research and came across xtide (http://www.flaterco.com/xtide/) which is free tide prediction software for Unix/X11. I wrote some sample scripts to fetch data for a local beach I go to, and now have my Macbook telling me (using the "say" command) when tidal events happen throughout the day (delays using "at" command). A fun little hack, heh. I'm sure interfacing with an Arduino and displaying the tide in feet on LED lights wouldn't be very difficult.
On Fri, Aug 20, 2010 at 12:39 PM, Izzy Ferpo <ife...@yahoo.com> wrote: > Thanks everyone for all your responses. You all have been very generous > with all your knowledge. I really appreciate it.
> I gave my presentation in Maine yesterday as a finalist and I should here > within a month if I received the project. I will keep you all posted.
> Thanks again, > If
> --- On *Fri, 8/20/10, Andy Rosenblum <esdad...@yahoo.com>* wrote:
> Subject: Re: [NYCR:Microcontrollers] Help needed to create a tidal clock > To: "nycresistormicrocontrollers@googlegroups.com" < > nycresistormicrocontrollers@googlegroups.com> > Cc: "nycresistormicrocontrollers@googlegroups.com" < > nycresistormicrocontrollers@googlegroups.com> > Date: Friday, August 20, 2010, 1:44 PM
> If processing was used, it could display an image of the tidal clock as > well as sending the tide info to the arduino.
> - Andy
> On Aug 17, 2010, at 3:22 PM, Irving Derin <irving.de...@gmail.com<http://mc/compose?to=irving.de...@gmail.com>> > wrote:
> I would imagine that you wouldn't need to much hardware for this. I > remember reading somewhere that you can use a PHP script to take the > information from the net, and then write a Processing program > to interpret the PHP data, and then send it of to an Arduino. where it could > do a number of things.
> On Tue, Aug 17, 2010 at 2:37 PM, Sam Sandberg <<http://mc/compose?to=sam.sandb...@gmail.com> > sam.sandb...@gmail.com <http://mc/compose?to=sam.sandb...@gmail.com>>wrote:
> Jen,
> My hardware experience is unfortunately very limited. I have always been a > software guy, but recently learned about Arduino and have done some > preliminary messing around there with hardware.
> I'm definitely interested in the project, but not sure I'm qualified for > it. If you need help on the software side I'd be willing to help out, and if > you find someone else to work with you I'd be interested in hearing about > what you did and how you did it.
> -Sam
> On Tue, Aug 17, 2010 at 2:34 PM, Justin Kelly <<http://mc/compose?to=freef...@gmail.com> > freef...@gmail.com <http://mc/compose?to=freef...@gmail.com>> wrote:
> LEDs and stepper motors yes, not so much with Arduino's. I have primarily > used Atmel chips with languages other then C.
> Justin
> On Tue, Aug 17, 2010 at 10:23 AM, Izzy Ferpo <<http://mc/compose?to=ife...@yahoo.com> > ife...@yahoo.com <http://mc/compose?to=ife...@yahoo.com>> wrote:
> Hello Sam,
> Thanks for responding. I'm thinking of using a web service. It will be a > piece that will be located in an elementary school. Do you have much > experience working with Arduino's, LED's, stepper motors and the programming > for them?
> Best, > jen
> --- On *Tue, 8/17/10, Sam Sandberg <<http://mc/compose?to=sam.sandb...@gmail.com> > sam.sandb...@gmail.com <http://mc/compose?to=sam.sandb...@gmail.com>>*wrote:
> From: Sam Sandberg < <http://mc/compose?to=sam.sandb...@gmail.com> > sam.sandb...@gmail.com <http://mc/compose?to=sam.sandb...@gmail.com>>
> Sounds like a fun project - do you intend to use some sort of webservice > call, or actually measure the tides manually? I've thought about making > something like this for fun, but never put any time towards it... yet
> -Sam
> On Sat, Aug 14, 2010 at 8:13 PM, if <<http://mc/compose?to=ife...@yahoo.com> > ife...@yahoo.com <http://mc/compose?to=ife...@yahoo.com>> wrote:
> Hello,
> I'm looking for some help with the creation of a tidal clock. It will > use LED lights to show the height at various times of the day. If > anyone would be interested in working on this project please let me > know. I may have an opportunity to do a public project and I would be > able to pay you.
> -- > You received this message because you are subscribed to the Google Groups > "NYCResistor:Microcontrollers" group. > To post to this group, send email to > nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to > nycresistormicrocontrollers+unsubscribe@googlegroups.com<nycresistormicroco ntrollers%2Bunsubscribe@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
I am interested in finding out more about your project. I am not sure
how much I can help timewise; however, I have an extensive systems
engineering background. There are many design options here that you
can work with.
Are you willing to share your presentation? (you can share it
privately via email if you'd like— I understand that it is your IP and
it is not a done deal. I am in that position a lot myself)
What is the desired life-span of this? IOW— does this have to be
designed to last for 30 years?
My recommendation is to keep things as simple as you can. The chance
of something failing goes up exponentially with the complexity.
For example, do you need 'real' local tides? Or can you display tide
forecasts or predictions? Communications is ripe with things that can
go wrong. Software that polls is difficult stuff to write reliably on
small computing platforms. One little mistake in memory management
(i.e., a 'memory leak') will eventually crash your software and render
the piece useless until it is 'rebooted'. On the other hand, built in
tide tables or tide prediction software, do not take into account
local weather which can influence the tide. If this project is in
Maine, then the tide swings can be +12/-2 ft. This means that subtle
effects like weather (pressure and wind) are more exagerated there
than they would be in NYC. In MIA you could just ignore them all
together.
That is just one example of a systems design element. There are other
things like topography. If you have to be able to communicate on the
web to get information, then you might as well have a website. If this
is in a school or a public building it will be behind a firewall. So
you can't just embed an http service in it very easily without
modifying their network topology. Are they willing to do that? An
alternative is to have a web application on their website (or some
other) and have the system push/pull data there.
I could go on... mechanical design, calibration (I read something
about stepper motors which are directionless), LED— power management
(this is where your presentation could help to understand the scale
here) typical display LEDs need drivers (more power than is available
from standard computing platforms (e.g., PC, Arduino, PICs, etc.)),
power supplies and distribution, heat and ventilation (where there is
power, there is heat), regulations, RFI (FCC Part 15J), UL, etc.
Well I don't really want to overwhelm you either— this is not a Boeing
777 either and is not going into space. You can build a successful
project without doing all of these things; however, it won't last 30
years.
Thank you so much for your response! It is tremendously helpful.
I would like the piece to last a long time. I'm hoping at least 20 years. It is large. The space is 26' high, 43' long by about 42' wide. The piece is made up of numerous parts. The tidal clock itself is 2-5' wide by 16-17' high. But there will be smaller openings that will be about 3" high to 1-2' long that will light up to show what height the tides are at.
I'm not opposed to working with predictions rather than working off of real time.Though I am curious if you could program it so that it would try to go off real time and if that failed it would use the predictions as the back up.
The piece is an astronomical clock that will show the constellations during different times of the year, the rising/setting of the moon/sun, The solar system and seasons, the tides as well as gravitational pull between the earth and moon, the stars spinning from the vantage point of polaris, etc.
All of these systems are not motorized. The seasons solar system wheel would be set on a hand crank so that the school could turn it 4 times a year. The graviational pulls are set up on banding wheels so that the graphic would spin by hand. The only piece that uses a stepper motor is the sun/moon rising/setting (which predictions would work perfectly for) the constellations could also be used with predictions and that uses lights as well to show which constellations are in view.
I have a year to make the piece if I am awarded the project. It won't be installed until the fall of 2011. I realize its complicated but that is what also makes it exciting for me. All your information isn't over whelming. I have thought about a lot of it but I'm just not knowledgeable of all the specific mechanics that would need to be incorporated.
Can you tell me a little bit more about who you are and where you are? Are you in Scandinavia? Even if I sent you the presentation I would still need to explain it. I didn't use a lot of text because I was speaking along with the imagery.
Thanks again for all the information you shared. I'll keep you posted if I get awarded the project.
best, jen
--- On Sat, 8/21/10, w1jp <jpell...@gmail.com> wrote:
From: w1jp <jpell...@gmail.com> Subject: [NYCR:Microcontrollers] Re: Help needed to create a tidal clock To: "NYCResistor:Microcontrollers" <nycresistormicrocontrollers@googlegroups.com> Date: Saturday, August 21, 2010, 3:47 PM
Jen,
I am interested in finding out more about your project. I am not sure how much I can help timewise; however, I have an extensive systems engineering background. There are many design options here that you can work with.
Are you willing to share your presentation? (you can share it privately via email if you'd like— I understand that it is your IP and it is not a done deal. I am in that position a lot myself)
What is the desired life-span of this? IOW— does this have to be designed to last for 30 years?
My recommendation is to keep things as simple as you can. The chance of something failing goes up exponentially with the complexity.
For example, do you need 'real' local tides? Or can you display tide forecasts or predictions? Communications is ripe with things that can go wrong. Software that polls is difficult stuff to write reliably on small computing platforms. One little mistake in memory management (i.e., a 'memory leak') will eventually crash your software and render the piece useless until it is 'rebooted'. On the other hand, built in tide tables or tide prediction software, do not take into account local weather which can influence the tide. If this project is in Maine, then the tide swings can be +12/-2 ft. This means that subtle effects like weather (pressure and wind) are more exagerated there than they would be in NYC. In MIA you could just ignore them all together.
That is just one example of a systems design element. There are other things like topography. If you have to be able to communicate on the web to get information, then you might as well have a website. If this is in a school or a public building it will be behind a firewall. So you can't just embed an http service in it very easily without modifying their network topology. Are they willing to do that? An alternative is to have a web application on their website (or some other) and have the system push/pull data there.
I could go on... mechanical design, calibration (I read something about stepper motors which are directionless), LED— power management (this is where your presentation could help to understand the scale here) typical display LEDs need drivers (more power than is available from standard computing platforms (e.g., PC, Arduino, PICs, etc.)), power supplies and distribution, heat and ventilation (where there is power, there is heat), regulations, RFI (FCC Part 15J), UL, etc.
Well I don't really want to overwhelm you either— this is not a Boeing 777 either and is not going into space. You can build a successful project without doing all of these things; however, it won't last 30 years.
Skål, Jon w1jp
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I'm thinking of taking an intro to microcontrollers course. What I really want to learn is how to program Atmel AVR MCUs but the only class offered covers Basic&PIC MCUs. Do y'all think the material is universal enough to apply to the AVR? I don't know how similar/different the families of MCU are. They cover programing in Basic, BasicPro and a little assembly. I really want to learn C but maybe this is a good place to start? Sorry for the vague question. -pete
Honestly, probably won't be of much use for programming in C, especially with the AVR. PIC BASIC and C are so completely different... and assembly on the PIC 8-bit controllers is very different than assembly on the AVRs.
I'm guessing you'd probably get a lot more out of a good local Arduino class, even a short one. It's C++ with some tweaks, but much much closer to standard AVR C... and you can even write code in straight C w/Arduino... and there are lots of tutorials, forums and other resources.
> I'm thinking of taking an intro to microcontrollers course. What I really want to learn is how to program Atmel AVR MCUs but the only class offered covers Basic&PIC MCUs. Do y'all think the material is universal enough to apply to the AVR? I don't know how similar/different the families of MCU are. > They cover programing in Basic, BasicPro and a little assembly. I really want to learn C but maybe this is a good place to start? > Sorry for the vague question. > -pete
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On Aug 23, 2010, at 10:51 PM, pete edwards <p...@casperelectronics.com> wrote:
I'm thinking of taking an intro to microcontrollers course. What I really want to learn is how to program Atmel AVR MCUs but the only class offered covers Basic&PIC MCUs. Do y'all think the material is universal enough to apply to the AVR? I don't know how similar/different the families of MCU are. They cover programing in Basic, BasicPro and a little assembly. I really want to learn C but maybe this is a good place to start? Sorry for the vague question. -pete
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The power supply for my Dell D820 has failed at the plug end and rather than purchase a new supply (for an old cruddy, rarely used computer that will be set up for my 4 year old) I'd rather simply replace the plug.
The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 volts/4.62amps out.
Does anyone know where I can find a compatible plug? Im not sure exactly how to describe it except to say it's a wider, barrel shaped plug with an insulated edge and with a needle shaped central pin inside. Anyone? Bueller?
You can learn fundamental microcontroller programming concepts from a PIC and transfer the concepts, but not the details, to AVR. I did. Concepts like port and peripheral management, fuses, use of stack, flash and EEPROM and interrupts are similar, but the implementation details will be different. I always look these things up at the time of use anyway.
As to BASIC and BASIC Pro, I think that C is far more useful. I have yet to see a really good book on C for microcontrollers (someone out there will probably suggest one), so you may have to look to your course for microprocessor concepts and pick up a regular C course somewhere. Then you can put the two together with the help of the documentation for your C compiler.
pete edwards wrote: > I'm thinking of taking an intro to microcontrollers course. What I > really want to learn is how to program Atmel AVR MCUs but the only > class offered covers Basic&PIC MCUs. Do y'all think the material is > universal enough to apply to the AVR? I don't know how > similar/different the families of MCU are. > They cover programing in Basic, BasicPro and a little assembly. I > really want to learn C but maybe this is a good place to start? > Sorry for the vague question. > -pete
Hello everyone. I just joined. I agree C is the best for the AVR. About 5 months ago I started to use C with the AVR and I love it. A year ago I started to learn microcontrollers using the PIC and assembly but when my PIC blew up trying to use its PWM I gave up on it and moved to the AVR. Learning assembly language on the AVR did get me going and I learned a super great deal about it in the process but now that I switched to C on the AVR I see the benefits, especially if you are going to fill up the AVR with a lot of code.
The hard part is the lack of C documentation but I usually build off the sample demo programs on the avr-gcc website and that works well. Plus the avr-gcc library is very good and I can do stuff on the AVR quickly without understanding how exactly its done since I'm still learning the AVR. Understanding the AVR gcc options is quite hard since the Atmel AVR tutorial on gcc all it talks about is that. But its a learning process which if you take in steps you eventually get. I don't know how much BASIC abstracts those parts out but it might not do it enough - or too well. My advice: use BASIC if your code is small otherwise learn C in steps.
On Tue, Aug 24, 2010 at 7:50 PM, Dan Lavin <dan...@verizon.net> wrote: > You can learn fundamental microcontroller programming concepts from a PIC > and transfer the concepts, but not the details, to AVR. I did. Concepts > like port and peripheral management, fuses, use of stack, flash and EEPROM > and interrupts are similar, but the implementation details will be > different. I always look these things up at the time of use anyway. > As to BASIC and BASIC Pro, I think that C is far more useful. I have yet > to see a really good book on C for microcontrollers (someone out there will > probably suggest one), so you may have to look to your course for > microprocessor concepts and pick up a regular C course somewhere. Then you > can put the two together with the help of the documentation for your C > compiler.
> pete edwards wrote:
>> I'm thinking of taking an intro to microcontrollers course. What I really >> want to learn is how to program Atmel AVR MCUs but the only class offered >> covers Basic&PIC MCUs. Do y'all think the material is universal enough to >> apply to the AVR? I don't know how similar/different the families of MCU >> are. >> They cover programing in Basic, BasicPro and a little assembly. I really >> want to learn C but maybe this is a good place to start? >> Sorry for the vague question. >> -pete
>> No virus found in this incoming message. >> Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: >> 271.1.1/3092 - Release Date: 08/24/10 11:31:00
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( Repeat broadcast: I sent this earlier but did not see it appear on the list so I'm sending again.)
All,
The power supply for my Dell D820 has failed at the plug end and rather than purchase a new supply (for an old cruddy, rarely used computer that will be set up for my 4 year old) I'd rather simply replace the plug.
The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 volts/4.62amps out.
Does anyone know where I can find a compatible plug here in NYC? Online? Im not sure exactly how to describe it except to say it's a wider, barrel shaped plug with an insulated edge and with a needle shaped central pin inside.
If you have the original 'brick adapter' that failed, please keep it! Tell me its ratings, voltage and amperage. Reason being is that I have a lot of parts salvage here in my lab at home, many of those 'foot warmer power bricks' for laptops and the sort. I may have one that will match the needed requirements, but we would have to frankenstien them together. I can do this for you, free of charge and parts, just come into craft night. I would have to chop off the old 'head' from the dead PSU, and solder it inline to the replacement. No worries, it would be a solid mod a child couldnt wind up getting a shock from. Ive got bunny rabbits that like to nibble, ive had to patch a fair share of cables. The cable may look like it has a wart growing on it where the solder job is, but some heatshrink over it will keep it all safe and isolated
You can also find 'Universal Laptop Power Supplies' at places like Best Buy or Radio Shack. I might actually have this exact PSU in my lab, I need to double check.
Often times its not the PSU that fails, but the jack on the laptops board, it breaks away from the PCB. I can also fix that. Or the head itself after time will have an internal short inside of it causing issues. I see this very often (I do tech consulting and repair) in laptops. I can fix most of em' for little, or in your case, no cost at all.
Reply back and let me know if I can be of any help.
On Thu, Aug 26, 2010 at 4:54 PM, mixi plizik <mixi.plit...@gmail.com> wrote: > ( Repeat broadcast: I sent this earlier but did not see it appear on the > list so I'm sending again.)
> All,
> The power supply for my Dell D820 has failed at the plug end and rather than > purchase a new supply (for an old cruddy, rarely used computer that will be > set up for my 4 year old) I'd rather simply replace the plug.
> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 > volts/4.62amps out.
> Does anyone know where I can find a compatible plug here in NYC? Online? Im > not sure exactly how to describe it except to say it's a wider, barrel > shaped plug with an insulated edge and with a needle shaped central pin > inside.
> daniel
> -- > You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. > To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. > To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
Just read the full e-mail on my laptop instead of the short version on my phone.Sorry... t'was an assinine thing to do. I will check my lab tonight and see if I have a PSU that fits your needs. As I mention previously we could frankenstien a PSU together as long as the head of the original PSU is in tact. If you IRC I am idle in the NYCR IRC channel and often active in #BSoD on irc.lostcarrier.net - toss me a reminder, I have a horrible memory.
On Fri, Aug 27, 2010 at 4:05 PM, Foxx D'Gamma <foxx...@gmail.com> wrote: > If you have the original 'brick adapter' that failed, please keep it! > Tell me its ratings, voltage and amperage. Reason being is that I have > a lot of parts salvage here in my lab at home, many of those 'foot > warmer power bricks' for laptops and the sort. I may have one that > will match the needed requirements, but we would have to frankenstien > them together. I can do this for you, free of charge and parts, just > come into craft night. I would have to chop off the old 'head' from > the dead PSU, and solder it inline to the replacement. No worries, it > would be a solid mod a child couldnt wind up getting a shock from. Ive > got bunny rabbits that like to nibble, ive had to patch a fair share > of cables. The cable may look like it has a wart growing on it where > the solder job is, but some heatshrink over it will keep it all safe > and isolated
> You can also find 'Universal Laptop Power Supplies' at places like > Best Buy or Radio Shack. I might actually have this exact PSU in my > lab, I need to double check.
> Often times its not the PSU that fails, but the jack on the laptops > board, it breaks away from the PCB. I can also fix that. Or the head > itself after time will have an internal short inside of it causing > issues. I see this very often (I do tech consulting and repair) in > laptops. I can fix most of em' for little, or in your case, no cost at > all.
> Reply back and let me know if I can be of any help.
> Cheers, Beers, and Bunny Ears, > ~Foxx
> On Thu, Aug 26, 2010 at 4:54 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >> ( Repeat broadcast: I sent this earlier but did not see it appear on the >> list so I'm sending again.)
>> All,
>> The power supply for my Dell D820 has failed at the plug end and rather than >> purchase a new supply (for an old cruddy, rarely used computer that will be >> set up for my 4 year old) I'd rather simply replace the plug.
>> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 >> volts/4.62amps out.
>> Does anyone know where I can find a compatible plug here in NYC? Online? Im >> not sure exactly how to describe it except to say it's a wider, barrel >> shaped plug with an insulated edge and with a needle shaped central pin >> inside.
>> daniel
>> -- >> You received this message because you are subscribed to the Google Groups "NYCResistor:Microcontrollers" group. >> To post to this group, send email to nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to nycresistormicrocontrollers+unsubscribe@googlegroups.com. >> For more options, visit this group at http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
Foxx, thanks for the offer. Perhaps I can come by some time and we can work it.
The power supply is relatively new but nevertheless --and as far as I can tell --failed at the typical stress point at the plug end though I suppose there could be other invisible damage too. I have a second dell supply that is a lower wattage unit (65w vs 90w) that can be cannibalized though it hurts to do so since its also quite recent and in perfect condition.
If I could open them up and desolder the cable from one and transpant it to the other id be satisfied because it would yield a clean repair. After doing some brief online research I don't think that can be done without consequence. The bricks are likely heat welded shut and opening them will incur some damage. That's not to say it cant be done. However it'll have to be sawed (hacksaw/bandsaw?) or chiseled open and then glued shut. At the least a vise will be necessary to hold it. Finding the right terminal would be simpler and cleaner.
Barring that clipping the wire from one and transplanting to the other, as you suggest, would work too. I think the cable is a coaxial affair so not sure how clean the soldering could be and wonder whether it would introduce electical distortion. Are there any joining connectors that you're aware of? Otherwise, Shrinkwrap would be the way to go as you've suggested.
I'm away for the next two weeks and wont be able to get to it till I return anyway. I'll email/call you when I return and maybe you'll have some free minutes.
Thanks for the reply and offer of help Regards
daniel
On 8/27/10 4:05 PM, "Foxx D'Gamma" <foxx...@gmail.com> wrote:
> If you have the original 'brick adapter' that failed, please keep it! > Tell me its ratings, voltage and amperage. Reason being is that I have > a lot of parts salvage here in my lab at home, many of those 'foot > warmer power bricks' for laptops and the sort. I may have one that > will match the needed requirements, but we would have to frankenstien > them together. I can do this for you, free of charge and parts, just > come into craft night. I would have to chop off the old 'head' from > the dead PSU, and solder it inline to the replacement. No worries, it > would be a solid mod a child couldnt wind up getting a shock from. Ive > got bunny rabbits that like to nibble, ive had to patch a fair share > of cables. The cable may look like it has a wart growing on it where > the solder job is, but some heatshrink over it will keep it all safe > and isolated
> You can also find 'Universal Laptop Power Supplies' at places like > Best Buy or Radio Shack. I might actually have this exact PSU in my > lab, I need to double check.
> Often times its not the PSU that fails, but the jack on the laptops > board, it breaks away from the PCB. I can also fix that. Or the head > itself after time will have an internal short inside of it causing > issues. I see this very often (I do tech consulting and repair) in > laptops. I can fix most of em' for little, or in your case, no cost at > all.
> Reply back and let me know if I can be of any help.
> Cheers, Beers, and Bunny Ears, > ~Foxx
> On Thu, Aug 26, 2010 at 4:54 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >> ( Repeat broadcast: I sent this earlier but did not see it appear on the >> list so I'm sending again.)
>> All,
>> The power supply for my Dell D820 has failed at the plug end and rather than >> purchase a new supply (for an old cruddy, rarely used computer that will be >> set up for my 4 year old) I'd rather simply replace the plug.
>> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 >> volts/4.62amps out.
>> Does anyone know where I can find a compatible plug here in NYC? Online? Im >> not sure exactly how to describe it except to say it's a wider, barrel >> shaped plug with an insulated edge and with a needle shaped central pin >> inside.
>> daniel
>> -- >> You received this message because you are subscribed to the Google Groups >> "NYCResistor:Microcontrollers" group. >> To post to this group, send email to >> nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to >> nycresistormicrocontrollers+unsubscribe@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
On Fri, Aug 27, 2010 at 5:05 PM, mixi plizik <mixi.plit...@gmail.com> wrote: > Foxx, thanks for the offer. Perhaps I can come by some time and we can work > it.
> The power supply is relatively new but nevertheless --and as far as I can > tell --failed at the typical stress point at the plug end though I suppose > there could be other invisible damage too. I have a second dell supply that > is a lower wattage unit (65w vs 90w) that can be cannibalized though it > hurts to do so since its also quite recent and in perfect condition.
Check the head for continuity. See if there is a short circuit. Often times the failure is in the center lead insulation breaking and coming in direct contact with the other wire layer (usually ground). Make sure the PSU isnt plugged in! Just check the tip and ring to see if its shorted out. If it is, its a matter of getting a new solder-style head, which isnt too hard these days. That might do the trick to get it repaired, but you are right, there could be unseen internal damage.
I found two PSUs, one is from a gateway and might natively fit your laptop. It well exceeds your amperage needs!- 16V @ 7.9A with Positive tip. I have another that is not up to par but should make due, an IBM thats 16V @ 3.3A. Ask around, see if anyone may have a PSU with the specs you need. If you really want to be a bastard we can rig up a Mini ATX PSU, got a few here I can hand out. I know most laptops wont mind being run off 12V, and a baby AT or ATX PSU can easily push 7A, I use one for my mobile ham radio when at home. An old AT Style PC PSU with the toggle on/off switch would be ideal. This is for a child so I dont expect it to be lugged around the house tethered by its power cord too often, like many of us are surely guilty of, and likely the reason it shit out. Im not sure on your scenario though, I am just making humble suggestions.
> If I could open them up and desolder the cable from one and transpant it to > the other id be satisfied because it would yield a clean repair. After doing > some brief online research I don't think that can be done without > consequence. The bricks are likely heat welded shut and opening them will > incur some damage. That's not to say it cant be done. However it'll have to > be sawed (hacksaw/bandsaw?) or chiseled open and then glued shut. At the > least a vise will be necessary to hold it. Finding the right terminal would > be simpler and cleaner.
Definitely cleaner but a major pain in the ass, and getting it back together is unlikely. You are correct about all of the above. If there are no screws, its likely heat bonded or chemically (glue) bonded together. Getting it apart would be a trainwreck. So in reality the better looking mod is the mix-and-match wiring with proper heat shrinking. Can you imagine how much of a mess the brick would be after gluing it back together after some hacksaw work around it? ... i can *shudders* Cleanest mod to get this working would be the use of a Baby AT or Baby ATX PC PSU. The extra motherboard cabling can easily be cleaned out and made to be 'clean' looking, I use a few myself. I can take some pics and link to my picasa page if you would like a visual of what im trying to convey.
> Barring that clipping the wire from one and transplanting to the other, as > you suggest, would work too. I think the cable is a coaxial affair so not > sure how clean the soldering could be and wonder whether it would introduce > electical distortion. Are there any joining connectors that you're aware of? > Otherwise, Shrinkwrap would be the way to go as you've suggested.
Distortion is nil. I never had an issue with doing a mix-and-match thus far. Not even on very sensitive devices when it comes to PSU flux like LCDs and TVs. Just need to make damn sure to heatshrink properly so we dont get any shorts. main reason they use a coaxial style cable is so that if the wire insulation is broken the first thing that is hit is ground, and not a 'hot' lead that can carry enough amperage to have the pet bunny get zapped across the room, like mine have when they chew lamp power cords.
> I'm away for the next two weeks and wont be able to get to it till I return > anyway. I'll email/call you when I return and maybe you'll have some free > minutes.
Two weeks notice, thats good, gives us time to explore options. I just got this 'universal laptop battery backup charger' from woot. Its an 8A Li-Ion cell, anyways, my point is that it comes with near every laptop power connector. We can size up and 'sex' (read as: find the polarity gender) of your connector if in the case we need a new one, or if you just opt for using a spare ATX PSU hooked up with a proper cable and power plug we know what size needed and the polarity of the tip.
> Thanks for the reply and offer of help > Regards
> daniel
No worries Daniel, im always glad to help someone out when I can. Just 'Pay it forward', thats all I ask.
> On 8/27/10 4:05 PM, "Foxx D'Gamma" <foxx...@gmail.com> wrote:
>> If you have the original 'brick adapter' that failed, please keep it! >> Tell me its ratings, voltage and amperage. Reason being is that I have >> a lot of parts salvage here in my lab at home, many of those 'foot >> warmer power bricks' for laptops and the sort. I may have one that >> will match the needed requirements, but we would have to frankenstien >> them together. I can do this for you, free of charge and parts, just >> come into craft night. I would have to chop off the old 'head' from >> the dead PSU, and solder it inline to the replacement. No worries, it >> would be a solid mod a child couldnt wind up getting a shock from. Ive >> got bunny rabbits that like to nibble, ive had to patch a fair share >> of cables. The cable may look like it has a wart growing on it where >> the solder job is, but some heatshrink over it will keep it all safe >> and isolated
>> You can also find 'Universal Laptop Power Supplies' at places like >> Best Buy or Radio Shack. I might actually have this exact PSU in my >> lab, I need to double check.
>> Often times its not the PSU that fails, but the jack on the laptops >> board, it breaks away from the PCB. I can also fix that. Or the head >> itself after time will have an internal short inside of it causing >> issues. I see this very often (I do tech consulting and repair) in >> laptops. I can fix most of em' for little, or in your case, no cost at >> all.
>> Reply back and let me know if I can be of any help.
>> Cheers, Beers, and Bunny Ears, >> ~Foxx
>> On Thu, Aug 26, 2010 at 4:54 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >>> ( Repeat broadcast: I sent this earlier but did not see it appear on the >>> list so I'm sending again.)
>>> All,
>>> The power supply for my Dell D820 has failed at the plug end and rather than >>> purchase a new supply (for an old cruddy, rarely used computer that will be >>> set up for my 4 year old) I'd rather simply replace the plug.
>>> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 >>> volts/4.62amps out.
>>> Does anyone know where I can find a compatible plug here in NYC? Online? Im >>> not sure exactly how to describe it except to say it's a wider, barrel >>> shaped plug with an insulated edge and with a needle shaped central pin >>> inside.
>>> daniel
>>> -- >>> You received this message because you are subscribed to the Google Groups >>> "NYCResistor:Microcontrollers" group. >>> To post to this group, send email to >>> nycresistormicrocontrollers@googlegroups.com. >>> To unsubscribe from this group, send email to >>> nycresistormicrocontrollers+unsubscribe@googlegroups.com. >>> For more options, visit this group at >>> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
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Yes, I want to simply replace the head with one that can be soldered since the break is obviously at that end. However Im not able to identify the connector specifically so am unable to locate one online. I'd like to find a retailer nearby to whom I can go and browse alternatives. Barring that, perhaps an online provider who can guide me to a selection. Any recommendagtions?
daniel
On 8/27/10 11:50 Pm, "Foxx D'Gamma" <foxx...@gmail.com> wrote:
> On Fri, Aug 27, 2010 at 5:05 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >> Foxx, thanks for the offer. Perhaps I can come by some time and we can work >> it.
>> The power supply is relatively new but nevertheless --and as far as I can >> tell --failed at the typical stress point at the plug end though I suppose >> there could be other invisible damage too. I have a second dell supply that >> is a lower wattage unit (65w vs 90w) that can be cannibalized though it >> hurts to do so since its also quite recent and in perfect condition.
> Check the head for continuity. See if there is a short circuit. Often > times the failure is in the center lead insulation breaking and coming > in direct contact with the other wire layer (usually ground). Make > sure the PSU isnt plugged in! Just check the tip and ring to see if > its shorted out. If it is, its a matter of getting a new solder-style > head, which isnt too hard these days. That might do the trick to get > it repaired, but you are right, there could be unseen internal damage.
> I found two PSUs, one is from a gateway and might natively fit your > laptop. It well exceeds your amperage needs!- 16V @ 7.9A with Positive > tip. I have another that is not up to par but should make due, an IBM > thats 16V @ 3.3A. Ask around, see if anyone may have a PSU with the > specs you need. If you really want to be a bastard we can rig up a > Mini ATX PSU, got a few here I can hand out. > I know most laptops wont mind being run off 12V, and a baby AT or ATX > PSU can easily push 7A, I use one for my mobile ham radio when at > home. An old AT Style PC PSU with the toggle on/off switch would be > ideal. This is for a child so I dont expect it to be lugged around the > house tethered by its power cord too often, like many of us are surely > guilty of, and likely the reason it shit out. Im not sure on your > scenario though, I am just making humble suggestions.
>> If I could open them up and desolder the cable from one and transpant it to >> the other id be satisfied because it would yield a clean repair. After doing >> some brief online research I don't think that can be done without >> consequence. The bricks are likely heat welded shut and opening them will >> incur some damage. That's not to say it cant be done. However it'll have to >> be sawed (hacksaw/bandsaw?) or chiseled open and then glued shut. At the >> least a vise will be necessary to hold it. Finding the right terminal would >> be simpler and cleaner.
> Definitely cleaner but a major pain in the ass, and getting it back > together is unlikely. You are correct about all of the above. If there > are no screws, its likely heat bonded or chemically (glue) bonded > together. Getting it apart would be a trainwreck. So in reality the > better looking mod is the mix-and-match wiring with proper heat > shrinking. Can you imagine how much of a mess the brick would be after > gluing it back together after some hacksaw work around it? ... i can > *shudders* Cleanest mod to get this working would be the use of a Baby > AT or Baby ATX PC PSU. The extra motherboard cabling can easily be > cleaned out and made to be 'clean' looking, I use a few myself. I can > take some pics and link to my picasa page if you would like a visual > of what im trying to convey.
>> Barring that clipping the wire from one and transplanting to the other, as >> you suggest, would work too. I think the cable is a coaxial affair so not >> sure how clean the soldering could be and wonder whether it would introduce >> electical distortion. Are there any joining connectors that you're aware of? >> Otherwise, Shrinkwrap would be the way to go as you've suggested.
> Distortion is nil. I never had an issue with doing a mix-and-match > thus far. Not even on very sensitive devices when it comes to PSU flux > like LCDs and TVs. Just need to make damn sure to heatshrink properly > so we dont get any shorts. main reason they use a coaxial style cable > is so that if the wire insulation is broken the first thing that is > hit is ground, and not a 'hot' lead that can carry enough amperage to > have the pet bunny get zapped across the room, like mine have when > they chew lamp power cords.
>> I'm away for the next two weeks and wont be able to get to it till I return >> anyway. I'll email/call you when I return and maybe you'll have some free >> minutes.
> Two weeks notice, thats good, gives us time to explore options. I just > got this 'universal laptop battery backup charger' from woot. Its an > 8A Li-Ion cell, anyways, my point is that it comes with near every > laptop power connector. We can size up and 'sex' (read as: find the > polarity gender) of your connector if in the case we need a new one, > or if you just opt for using a spare ATX PSU hooked up with a proper > cable and power plug we know what size needed and the polarity of the > tip.
>> Thanks for the reply and offer of help >> Regards
>> daniel
> No worries Daniel, im always glad to help someone out when I can. Just > 'Pay it forward', thats all I ask.
> Cheers, Beers, and Bunny Ears, > ~Foxx
>> On 8/27/10 4:05 PM, "Foxx D'Gamma" <foxx...@gmail.com> wrote:
>>> If you have the original 'brick adapter' that failed, please keep it! >>> Tell me its ratings, voltage and amperage. Reason being is that I have >>> a lot of parts salvage here in my lab at home, many of those 'foot >>> warmer power bricks' for laptops and the sort. I may have one that >>> will match the needed requirements, but we would have to frankenstien >>> them together. I can do this for you, free of charge and parts, just >>> come into craft night. I would have to chop off the old 'head' from >>> the dead PSU, and solder it inline to the replacement. No worries, it >>> would be a solid mod a child couldnt wind up getting a shock from. Ive >>> got bunny rabbits that like to nibble, ive had to patch a fair share >>> of cables. The cable may look like it has a wart growing on it where >>> the solder job is, but some heatshrink over it will keep it all safe >>> and isolated
>>> You can also find 'Universal Laptop Power Supplies' at places like >>> Best Buy or Radio Shack. I might actually have this exact PSU in my >>> lab, I need to double check.
>>> Often times its not the PSU that fails, but the jack on the laptops >>> board, it breaks away from the PCB. I can also fix that. Or the head >>> itself after time will have an internal short inside of it causing >>> issues. I see this very often (I do tech consulting and repair) in >>> laptops. I can fix most of em' for little, or in your case, no cost at >>> all.
>>> Reply back and let me know if I can be of any help.
>>> Cheers, Beers, and Bunny Ears, >>> ~Foxx
>>> On Thu, Aug 26, 2010 at 4:54 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >>>> ( Repeat broadcast: I sent this earlier but did not see it appear on the >>>> list so I'm sending again.)
>>>> All,
>>>> The power supply for my Dell D820 has failed at the plug end and rather >>>> than >>>> purchase a new supply (for an old cruddy, rarely used computer that will be >>>> set up for my 4 year old) I'd rather simply replace the plug.
>>>> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 >>>> volts/4.62amps out.
>>>> Does anyone know where I can find a compatible plug here in NYC? Online? Im >>>> not sure exactly how to describe it except to say it's a wider, barrel >>>> shaped plug with an insulated edge and with a needle shaped central pin >>>> inside.
>>>> daniel
>>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "NYCResistor:Microcontrollers" group. >>>> To post to this group, send email to >>>> nycresistormicrocontrollers@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> nycresistormicrocontrollers+unsubscribe@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
>> -- >> You received this message because you are subscribed to the Google Groups >> "NYCResistor:Microcontrollers" group. >> To post to this group, send email to >> nycresistormicrocontrollers@googlegroups.com. >> To unsubscribe from this group, send email to >> nycresistormicrocontrollers+unsubscribe@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
On Tue, Aug 24, 2010 at 5:17 PM, mixi plizik <mixi.plit...@gmail.com> wrote: > The power supply for my Dell D820 has failed at the plug end and rather than > purchase a new supply (for an old cruddy, rarely used computer that will be > set up for my 4 year old) I'd rather simply replace the plug.
> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 > volts/4.62amps out.
> Does anyone know where I can find a compatible plug?
They don't seem to offer the connector itself, but you can get it premolded on a cable to bare-wire leads, and then you just have to crack the PSU and replace the output cable:
I have no experience with this supplier. I just did the simple thing and Googled "dell laptop power connector" and they were the second hit. The page for the plug doesn't list the laptop model, but it lists compatible jacks, and the compatible jack does list the D820, so you should be set.
On 8/28/10 2:13 AM, "Andy Leviss" <A...@DucksEchoSound.com> wrote:
> On Tue, Aug 24, 2010 at 5:17 PM, mixi plizik <mixi.plit...@gmail.com> wrote: >> The power supply for my Dell D820 has failed at the plug end and rather than >> purchase a new supply (for an old cruddy, rarely used computer that will be >> set up for my 4 year old) I'd rather simply replace the plug.
>> The supply is a Dell PA-10 family (PA-1900-02D2) 90w unit, DC 19.5 >> volts/4.62amps out.
>> Does anyone know where I can find a compatible plug?
> They don't seem to offer the connector itself, but you can get it > premolded on a cable to bare-wire leads, and then you just have to > crack the PSU and replace the output cable:
> I have no experience with this supplier. I just did the simple thing > and Googled "dell laptop power connector" and they were the second > hit. The page for the plug doesn't list the laptop model, but it lists > compatible jacks, and the compatible jack does list the D820, so you > should be set.
