http://www.3abnkundabung.org/16LSawvsY4.html

----- Original Message -----

From: Cristina Nagy Morais

To: vt4c@...

Sent: Wednesday, April 29, 2009 10:13 PM

Subject: Fw: [pjrcmp3] mp3 board

 

----- Original Message -----

From: wedgy

To: pjrcmp3@yahoogroups.com

Sent: Wednesday, April 29, 2009 7:47 PM

Subject: Re: [pjrcmp3] mp3 board

I have no idea how much I paid for it.  How does $20 USD sound?  I've got no idea on shipping.  If you give me your address, I can see what UPS says.  --- On Wed, 4/29/09, vt4c@... <vt4c@...> wrote: From: vt4c@... <vt4c@...> Subject: Re: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups.com Date: Wednesday, April 29, 2009, 6:27 AM Hello I live in Lisbon, Portugal say your price please. Regards.   Luis On Ter Abr 28 21:58 , wedgy sent: Yeah, I could probably sell just the button kit. --- On Fri, 4/17/09, vt4c@... wrote: From: vt4c@... Subject: Re: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups .com Date: Friday, April 17, 2009, 8:19 AM Dear Sir Do you sell only the backlit button kit ? Regards. Luis On Sex Abr 17 7:34 , wedgy sent: I have a working board with LCD and button panel, a 4 (or 6?  forgot) GB 2.5" HDD mounted on it and a 32MB SIMM.  I also have the backlit button kit, but I never installed it.  Are you still looking? --- On Tue, 3/24/09, alexscott net.nz> wrote: From: alexscott net.nz> Subject: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups .com Date: Tuesday, March 24, 2009, 1:24 PM HI I am interested in getting one of these boards, does anyone have one they have finished with ?   thanks   alex in new zealand

----- Original Message -----

From: wedgy

To: pjrcmp3@yahoogroups.com

Sent: Wednesday, April 29, 2009 7:47 PM

Subject: Re: [pjrcmp3] mp3 board

I have no idea how much I paid for it.  How does $20 USD sound?  I've got no idea on shipping.  If you give me your address, I can see what UPS says.  --- On Wed, 4/29/09, vt4c@... <vt4c@...> wrote: From: vt4c@... <vt4c@...> Subject: Re: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups.com Date: Wednesday, April 29, 2009, 6:27 AM Hello I live in Lisbon, Portugal say your price please. Regards.   Luis On Ter Abr 28 21:58 , wedgy sent: Yeah, I could probably sell just the button kit. --- On Fri, 4/17/09, vt4c@... wrote: From: vt4c@... Subject: Re: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups .com Date: Friday, April 17, 2009, 8:19 AM Dear Sir Do you sell only the backlit button kit ? Regards. Luis On Sex Abr 17 7:34 , wedgy sent: I have a working board with LCD and button panel, a 4 (or 6?  forgot) GB 2.5" HDD mounted on it and a 32MB SIMM.  I also have the backlit button kit, but I never installed it.  Are you still looking? --- On Tue, 3/24/09, alexscott net.nz> wrote: From: alexscott net.nz> Subject: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups .com Date: Tuesday, March 24, 2009, 1:24 PM HI I am interested in getting one of these boards, does anyone have one they have finished with ?   thanks   alex in new zealand

Hello

I live in Lisbon, Portugal say your price please.

Regards.

Luis



On Ter Abr 28 21:58 , wedgy sent:

Yeah, I could probably sell just the button kit. --- On Fri, 4/17/09, vt4c@... wrote: From: vt4c@... Subject: Re: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups.com Date: Friday, April 17, 2009, 8:19 AM Dear Sir Do you sell only the backlit button kit ? Regards. Luis On Sex Abr 17 7:34 , wedgy sent: I have a working board with LCD and button panel, a 4 (or 6?  forgot) GB 2.5" HDD mounted on it and a 32MB SIMM.  I also have the backlit button kit, but I never installed it.  Are you still looking? --- On Tue, 3/24/09, alexscott net.nz> wrote: From: alexscott net.nz> Subject: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups .com Date: Tuesday, March 24, 2009, 1:24 PM HI I am interested in getting one of these boards, does anyone have one they have finished with ?   thanks   alex in new zealand

Joseph wrote:
> if all you want to do is play a mp3 file via the door bell press,
> there are more appropriate devices that can be used.  For starters:
>
> <http://www.macklabs.com/minimacds.pdf>
> <http://www.makezine.com/daisy/>
> <http://www.pricom.com/Trains/DreamPlayer.shtml>
>
<https://www.gilderfluke.com/index.php?main_page=product_info&cPath=1_3&products\
_id=33
>  >
> <http://www.cfsound.com/index_CFSound.asp>

I delayed my reply for a few days to see if anyone else had any suggestions.

I think that I agree with you - PJRC's units might not be the best for
my application. One or 2 of the others may work better (the Daisy looks
interesting).

I'll unsubscribe, but would appreciate any other ideas. Email me directly.

if all you want to do is play a mp3 file via the door bell press,
there are more appropriate devices that can be used.  For starters:

<http://www.macklabs.com/minimacds.pdf>
<http://www.makezine.com/daisy/>
<http://www.pricom.com/Trains/DreamPlayer.shtml>
<https://www.gilderfluke.com/index.php?main_page=product_info&cPath=1_3&products\
_id=33
  >
<http://www.cfsound.com/index_CFSound.asp>

HTH

On Apr 18, 2009, at 5:25 PM, Michael Klinosky wrote:

> Hello from Hummelstown, PA! (It's near Harrisburg.)
>
> I've been researching the notion of hacking together an mp3 doorbell,
> and a websearch hit on the PJRC website. Btw, yes, I noticed the bit
> about not being available anymore. Frankly, I can't see that the mp3
> player industry drove sales _that_ low - aren't there enough hackers
> out
> there to keep things going somewhat?
>
> Thus, I might be interested in buying a used unit.
>
> I need to know exactly what these units can do. E.g. can it be
> triggered
> it to play 1 file and stop (as opposed to continuous)?
>
> Does it merely play files from a list, or can it be set to randomly
> pick
> a file?
>
> Can I adapt USB hardware to it (to use a flash drive - just to make it
> easier when I want to add files)?
>
> I'm sure that there are other concerns to see if it's practical for my
> application.

Hello from Hummelstown, PA! (It's near Harrisburg.)

I've been researching the notion of hacking together an mp3 doorbell,
and a websearch hit on the PJRC website. Btw, yes, I noticed the bit
about not being available anymore. Frankly, I can't see that the mp3
player industry drove sales _that_ low - aren't there enough hackers out
there to keep things going somewhat?

Thus, I might be interested in buying a used unit.

I need to know exactly what these units can do. E.g. can it be triggered
it to play 1 file and stop (as opposed to continuous)?

Does it merely play files from a list, or can it be set to randomly pick
a file?

Can I adapt USB hardware to it (to use a flash drive - just to make it
easier when I want to add files)?

I'm sure that there are other concerns to see if it's practical for my
application.

Dear Sir

Do you sell only the backlit button kit ?

Regards.

Luis


On Sex Abr 17 7:34 , wedgy sent:

I have a working board with LCD and button panel, a 4 (or 6?  forgot) GB 2.5" HDD mounted on it and a 32MB SIMM.  I also have the backlit button kit, but I never installed it.  Are you still looking? --- On Tue, 3/24/09, alexscott net.nz> wrote: From: alexscott net.nz> Subject: [pjrcmp3] mp3 board To: pjrcmp3@yahoogroups.com Date: Tuesday, March 24, 2009, 1:24 PM HI I am interested in getting one of these boards, does anyone have one they have finished with ?   thanks   alex in new zealand

Hi!
I have one In Estonia. Check the pic

Regards
Taivo




alexscott wrote:
>
> HI I am interested in getting one of these boards, does anyone have
> one they have finished with ?
>
> thanks
>
> alex in new zealand
>

--- In pjrcmp3@yahoogroups.com, "Otter!!! ----" <wedgy84@...> wrote:
>
> I'm a bit tight on money and just havn't used my mp3 player in
years
> due to nice sound system for computer and new car with a great
system
> in it.  I love it and it has served my music needs exceptionally
and I
> would like to see it go to someone who could then say the same
thing.
>
> Anyone interested?
>
> It is one of the newer boards, machine built.  Comes with 32MB
RAM, 6GB
> (or 4... don't remember) 2.5" HDD, button panel and full LCD.  It
> currently resides in a modified crayon box that also holds the
four
> cell battery pack.  I'll toss in the powersupply too.  I believe
it is
> 12V 1.5A and the car adaptor.  The LCD has a small blotch on it
from a
> friend piling school junk on it after I was too drunk to remember
to
> take it out of his car.  It isn't bad and doesn't really inhibit
> viewing.  Only other issue I've had with it is the serial.
Somehow
> got a faulty chip that Paul graciously replaced with a socket and
> provided an extra in case it was something in my setup or with
what I
> was doing.  Was years before I put it away, so I'm sure it was
just
> the chip.  :-)  I'll also toss in the digi-pot that I never got
around
> to adding to the LCD.
>
> I'd like to at least get $150 out of it.  Anyone up to paying my
car
> note?  :-D  A nice round $200?  I'll go take some shots with my
camera
> a bit later and see about replying back with some links.  :-)
>


And a few links to some older pictures.  :)
http://i37.tinypic.com/35mkw21.jpg
http://i38.tinypic.com/2lbp2k5.jpg
http://i38.tinypic.com/2dudzxj.jpg
http://i37.tinypic.com/11b1a1s.jpg

I'm a bit tight on money and just havn't used my mp3 player in years
due to nice sound system for computer and new car with a great system
in it.  I love it and it has served my music needs exceptionally and I
would like to see it go to someone who could then say the same thing.

Anyone interested?

It is one of the newer boards, machine built.  Comes with 32MB RAM, 6GB
(or 4... don't remember) 2.5" HDD, button panel and full LCD.  It
currently resides in a modified crayon box that also holds the four
cell battery pack.  I'll toss in the powersupply too.  I believe it is
12V 1.5A and the car adaptor.  The LCD has a small blotch on it from a
friend piling school junk on it after I was too drunk to remember to
take it out of his car.  It isn't bad and doesn't really inhibit
viewing.  Only other issue I've had with it is the serial.  Somehow
got a faulty chip that Paul graciously replaced with a socket and
provided an extra in case it was something in my setup or with what I
was doing.  Was years before I put it away, so I'm sure it was just
the chip.  :-)  I'll also toss in the digi-pot that I never got around
to adding to the LCD.

I'd like to at least get $150 out of it.  Anyone up to paying my car
note?  :-D  A nice round $200?  I'll go take some shots with my camera
a bit later and see about replying back with some links.  :-)

Folks,

I've got a bunch of mp3 player boards, a few displays and one
completed player going free to a good home.

The price is the cost of shipping from Canada (via paypal I guess).
Weight is 2kg, postage costs at www.canadapost.ca

Cheers,
Tom

-------------------------------------------------
Tom Parker
tom@tparker.ca

I have 3-4 gig of music on my player and a 32 mb simm.  Some of my
MP3's are 300-400 meg each. (one long song, captured internet stream)
and they all play just fine.  I would try a different simm, as suggested.


--- In pjrcmp3@yahoogroups.com, "matthias_koelling"
<matthias_koelling@...> wrote:
>
> First I used a 8MB SIMM and had around 3GB MP3 on the disc in a lot of
> directories and every thing was fine.
> Now I added 20 albums by deleting the whole disc and write back the new
> package of now 4.6GB. And I changed the SIMM to 16MB to be able playing
> longer songs.
> Now I realize that the most of the old albums are played correctly. But
> the last few albums of the old package and the new albums showing the
> following effect:
> When a song was played it dosn't load the next one from the disc. A
> part of the next song seems to be already in the SIMM and it plays it
> until the end of memory is reached. Then the rest of the song is
> loaded. The load from disc is now somewhere in a song depending on the
> length. When I switch off my player in such a position and switch it on
> again the last title played starts somewhere in the middle of the song.
>
> What did I wrong???
>

Count me in too if David decides not to get them or not to get all of them.

Thanks!

Brian

Folks,

I've got a bunch of mp3 player boards, a few displays and one
completed player going free to a good home.

The price is the cost of shipping from Canada (via paypal I guess).
Weight is 2kg, postage costs at www.canadapost.ca

Cheers,
Tom

-------------------------------------------------
Tom Parker
tom@...

mc_cuppa_t wrote:
>
>
> Hey ppl,
>
> Im currently researching into 8051 based mp3 players and you guys have
> overcome the processing power limitiations of the 8051.
>
> Can you tell me what it is in the old mp3 player
> (http://www.pjrc.com/tech/mp3/old_player.html
> <http://www.pjrc.com/tech/mp3/old_player.html>)
> That prevents it from being able to handle anything greater the 192kbit/s
>
> Is it the speed at which it can access the hard drive?
>
> Also would you know the processor loading for each part of the firmware?
>
> i.e. what % is spent hd access, serial transfer to decoder, idle etc
>
> Many Thanks,
> Ryan.

The new design overcomes the limitations of the 8051 by offloading much of the
data transfer (drive->ram, ram->mp3 decoder) in the FPGA. So, for the most part,
the 8051 is kept idle when an mp3 is actually playing. The 8051 is only really
involved when parsing the directory structure and in setting up an mp3 to play.
Once playback is started, the processor doesn't do much other than update the
display.

-Laine Walker-Avina

Hey ppl,

Im currently researching into 8051 based mp3 players and you guys have
overcome the processing power limitiations of the 8051.

Can you tell me what it is in the old mp3 player
(http://www.pjrc.com/tech/mp3/old_player.html)
That prevents it from being able to  handle anything greater the 192kbit/s

Is it the speed at which it can access the hard drive?

Also would you know the processor loading for each part of the firmware?

i.e. what % is spent hd access, serial transfer to decoder, idle etc


Many Thanks,
Ryan.

Are you interested in a CS programming description of a EE design
description?

I am not an EE so I can only give a waving of the hands about most
things. (I think) Essentally the FPGA is used as an IDE, RAM and DMA
contoller. On startup, the mp3 decoder is initilized and the files are
indexed. A file is opened, read in, and stored into the RAM buffer
until either and EOF or OOM. After this is completed, blocks are
copied from RAM and sent to the MP3 decoder. This step is then repeated.

Everything else is extra that make the player work in a pleasing way.
ID3V1 information is displayed, the file tree is used for a file
browsing display, audio levels can be adjusted, play can be paused,
tracks skipped forward or reverse and so on.

There is extensive schematic files on the web site and the C/asm
source code can be downloaded.

Keith

--- In pjrcmp3@yahoogroups.com, "roopamanjula" <roopamanjula@...> wrote:
>
> can anybody explain me how this pjrc board works clearly .
> from where to where the data is sent while a next file or anything
> command is given to it ,which performs this operation
> please help me, iam doing project on that.
>

can anybody explain me how this pjrc board works clearly .
from where to where the data is sent while a next file or anything
command is given to it ,which performs this operation
please help me, iam doing project on that.

Try using the 8MB SIMM and see if it works. Maybe the 16MB SIMM is
not ok.

I have a 32MB simm and arround 65G of mp3 files and no problems at
all.

--- In pjrcmp3@yahoogroups.com, "matthias_koelling"
<matthias_koelling@...> wrote:
>
> First I used a 8MB SIMM and had around 3GB MP3 on the disc in a lot
of
> directories and every thing was fine.
> Now I added 20 albums by deleting the whole disc and write back the
new
> package of now 4.6GB. And I changed the SIMM to 16MB to be able
playing
> longer songs.
> Now I realize that the most of the old albums are played correctly.
But
> the last few albums of the old package and the new albums showing
the
> following effect:
> When a song was played it dosn't load the next one from the disc. A
> part of the next song seems to be already in the SIMM and it plays
it
> until the end of memory is reached. Then the rest of the song is
> loaded. The load from disc is now somewhere in a song depending on
the
> length. When I switch off my player in such a position and switch
it on
> again the last title played starts somewhere in the middle of the
song.
>
> What did I wrong???
>

First I used a 8MB SIMM and had around 3GB MP3 on the disc in a lot of
directories and every thing was fine.
Now I added 20 albums by deleting the whole disc and write back the new
package of now 4.6GB. And I changed the SIMM to 16MB to be able playing
longer songs.
Now I realize that the most of the old albums are played correctly. But
the last few albums of the old package and the new albums showing the
following effect:
When a song was played it dosn't load the next one from the disc. A
part of the next song seems to be already in the SIMM and it plays it
until the end of memory is reached. Then the rest of the song is
loaded. The load from disc is now somewhere in a song depending on the
length. When I switch off my player in such a position and switch it on
again the last title played starts somewhere in the middle of the song.

What did I wrong???

I want create an mp3 player that can play aac's and output to 4 speakers.

(for Car audio)

Any idea how this might be possible  ?

I found a very nice IC for mp3 decoding it's called:
VS1033  this can decode acc's and wma as well, and all this at 320 bps

But it decodes acc to 2 channel audio

99% that i will use this chip in my project, witch interfaces whit an
already  professionally produced car audio CD player (KENWOOD KDC5070)

I will completely remove cd player and replace it whit my custom built
mp3 player, only need to solve level differences, for the audio levels
of the original cd player and the above chip.

Currently i am having some thoughts about what micro-controller i
should use. Would probably go whit atmega 16, but if i could find a
developing platform and cheap IC's of a 32 bit microcontroler, so i
could incorporate additional functionality, Thinking about changing
LCD display to graphic one, and displaying more info then just what
music is played, like what's the inside or the outside temperature..
and stuff...

First things first. I need to decode and analyze comunication between
the 2 mc's of the KENWOOD KDC5070.


One might ask, why i am doing this... To learn :D and for funn.

the guys at pjrc have decided to leave the country for a bit and
didn't post it on there web site so the week it took me to figure that
out put me in a bit of a bind.
I will pay full listed price plus what ever for the hd/ram of anyone
who can send me a complete pjrc mp3 player(Rev C or later) with
display. I will also accept the display with buttons alone because i
have been offered the board by itself. ill take the parts however i
can get them.
the parts will need to be mailed same day or over night

i can pay you with paypal, a wire transfer, or any other form of
payment that does not put me at risk.

thank you,
-Robert

--- In pjrcmp3@yahoogroups.com, "waveguide28" <waveguide28@...> wrote:
>
> --- In pjrcmp3@yahoogroups.com, "bartartfart" <bartartfart@> wrote:
> >
> > i have 2 hard drives in caddies and both have the same problem.
at
> > player power on all goes ok and music starts playing then HDD
spins
> > down after "buffering" then when i try to go to next/previous
track
> or
> > directory the drive dosn't spin up the whole thing hangs then
resets
> > the player reboots an halts at "Waiting for hard drive" and
reboots
> > over and over. if i remove power from the hard drive for a couple
of
> > secs the player will load up ok and start playing again until
spin
> > down then the hole problem starts over again. i have set spin
down to
> > none to get over this but this means the drive is spinning
> > continuasly. current firmware version is 6.90 unmodded. normally
use
> > BMW BeBox ver 6.31 Help.
> >
> I have the same problem. Can You help?
> joe
>
Dear MP3 friend,

I do have the same problem, my board was working well until I blown
the
87C52. I bought a new from PJRC and now after booting it
says "waiting
for the hard drive" and "experimental dev release" and the date of
the
release.It prints 15 to 20 seconds of dots and then loads from the
hard
drive. Plays a music and when I trie to change file it prints a lot
of
dots and then boots again. I checked the power and everything that
could
be checked. Please if you have a solution I would like to have it
too.
Thank you all.

Luis