RE: TI-H: javier
[Prev][Next][Index][Thread]
RE: TI-H: javier
Are you asking Jeff?
Javier
-----Mensaje original-----
De: Ian Kaplan <netfusion@netzero.net>
Para: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Fecha: Jueves 7 de Octubre de 1999 03:13 a.m.
Asunto: TI-H: javier
>
>what is ur site?
>----- Original Message -----
>From: Javier <grijalba@cvtci.com.ar>
>To: <ti-hardware@lists.ticalc.org>
>Sent: Wednesday, October 06, 1999 10:26 PM
>Subject: RE: TI-H: MP3 player for cars
>
>
>>
>> Hi Jeff
>> Did you find any nice inverter schematics or power supplies for the car
>mp3
>> player ??
>> Javier
>>
>> -----Mensaje original-----
>> De: jeff dezur <jeffd@wwnet.net>
>> Para: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>> Fecha: Miércoles 6 de Octubre de 1999 02:29 a.m.
>> Asunto: Re: TI-H: MP3 player for cars
>>
>>
>> >
>> >Note: this is on topic for DKs message, and is lengthy. Delete if you
>> aren't
>> >interested.
>> >--------------------------------------------
>> >
>> >Yes, you can do it this way(with a rio), but even with 64 MB of flash
>ram,
>> >which is EXPENSIVE (if you buy the expansion cards alone) you can still
>> only
>> >put on maybe 25 MP3s, with them being 2.5-3 MB each. You might as well
>just
>> >go buy a 10 disc CD changer for the price of the rio. No its not very
>> >portable, but you get a LOT more music.
>> >
>> >Also, if you wanted to compare a 10 disc CD changer to an linux MP3 box,
>> you
>> >can fit about 150-170(or more) songs onto a CD. Thats about 10-12
>> >discs(straight audio) per MP3 CD. With the price of hard drives now, you
>> >might as well just buy a 10 GB, fill it with MP3s, and essentially put a
>> 100
>> >disc CD changer inside your car. I bought a 10 gb hard drive the other
>> week,
>> >and it was only $125. Yes, I could have gotten western digitals 27 GB,
>but
>> I
>> >didn't quite have the extra $150 bucks. You can tell from this that the
>> cost
>> >per MB is a TON cheaper than a bunch of CF cards for a rio.
>> >
>> >Now, in the way of hardware hacking, I made one myself, which I can
>convert
>> >from a car player to a stereo player just by bringing it in the
house(how
>> >convienent). I used pretty much used, leftover parts with it, and its
>been
>> >running for about a year or so without any problems. it does use win95,
>but
>> >I really hate how long it loads. But, I'm too lazy to customize a kernel
>> for
>> >linux. The way I have it set up, isn't anything special. Win95 runs off
>the
>> >HD, I've got a little VB program I made up so when it runs, it checks
the
>> CD
>> >in the drive (if there is one), makes up a playlist (only adds mp3s,
that
>> >way, I can take some of my software/mp3 combo cds, and use them), saves
>it
>> >to the HD, runs the mp3 software I made up (its got an LCD control
panel,
>> >and uses a little remote I made up, all together in the same packaging),
>> >plays and plays, until I go to shut down (option on the remote), when it
>> >closes everything, and powers down the system. I have an ATX
motherboard,
>> >and use a remote switch on the remote for powering up/down, also, it
will
>> >shut itself off when I go to shutdown. :) The remote lets me select the
>> >songs, shuffle, volume (for fine tuning), repeat play, and basic
>functions
>> >like shutting down, rebooting, etc. The lcd display shows the title of
>the
>> >song, artist, time elapsed, the menu system, etc...
>> >
>> >For the shock resistance, I didn't do anything much but put the hard
>drive
>> >in a 5 1/4" slot in the case, and put it on one of those rubber mounted
>CD
>> >holders for cars(got that at radio shack, about 2 years ago). it hasn't
>> >skipped once yet, and if it did, I would have known it. :) I am a little
>> >more cautious about driving when its on, because I know that going over
a
>> >set of 4 inch high speed bumps doing 50 would probably trash the hard
>> drive.
>> >But its a pickup, so if you drive a lexus, you definitly don't need to
>> worry
>> >about shock resistance. Hard drives I've found are pretty stable.
>> >Temperature changes though are bad for it, I know, and living in
>michigan,
>> >the winters are harsh, (worse in alaska where grant lives) but I'm not
>too
>> >sure how well the hard drive will do this winter. last winter, on really
>> >cold mornings (20 degrees or colder) the computer didn't want to work
>very
>> >well. but after I was driving for about 20 minutes with the heat on, it
>was
>> >fine.
>> >
>> >The CD shock protection, I have only one answer: PUT A BIG BUFFER IN
>> PLAYER!
>> >with the software I developed, it re-reads a few times if it screws up.
>:)
>> >and the chances it screws up twice or 3 times in a row is slim... it's
>only
>> >reading maybe 500k at a time, and that lasts a good 4 seconds...
>> >
>> >Price wise, this is what I came up with.
>> >
>> >LCD, wire, controller = maybe $25.
>> >MB=$70
>> >Processor = $50 (a pentium 233 mmx... slow, but efficent, and WAY
>overkill
>> >for the box)
>> >HD=$100 (its a 2gb, but I bought a long time ago. you can get a 8 gb now
>> for
>> >that price.)
>> >CD-Rom = $35 (its a 32x, lots of overkill)
>> >ram=$50 (its 32 MB, but ram has skyrocketed in price with that
earthquake
>> in
>> >taiwan)
>> >case= maybe $20 (its customized to fit my pickup, price comes from the
>> power
>> >supply)
>> >soundcard=$20 (el cheepo)
>> >Net card=$15 (generic 10base-t)
>> >power inverter = $40 (a little 140 watt does great)
>> >cassette adapter = $15 (got it on sale, but I'm sure its cheaper
>somewhere)
>> >line filter = $20 (I get this nasty humming noise off the power supply.
>> >Probably because the inverter is a square wave sine, and the power
supply
>> >doesn't like it much. this cleaned that up VERY nicely.)
>> >-------
>> >total=$410 + tax.
>> >Rio (last I checked) = $230 at beyond.com
>> >CD Changer = $210
>> >
>> >Tell me if this doesn't kick a Rio's ass... No, its not very portable,
>but
>> >it serves my purposes well. only bad part with this, is I spent days
>> writing
>> >the software for it (i could have just bought the OCX controls for VB,
>but
>> I
>> >wanted this to be inexpensive). it's a bigger shell-out in the
beginning,
>> >but you see how much you spend in AA batteries + CF cards, while mine
>runs
>> >off the car... and mine holds 200 files on the hard drive, plus another
>150
>> >on a CD.
>> >
>> >Next thing I want to change, is put the GPS reciever I've got into the
>> >works, and change the LCD to a color touchscreen active matrix LCD
panel,
>> >then run a modified version of Explorer in win95 so it'll be compatible.
>> Put
>> >in the DVD & video card, so I can watch movies while in traffic. Then
>> >replace the radio with the computer display(unfortunatly its a leased
>> truck,
>> >so ripping out the factory radio isn't so good), pop in a radio card in
>the
>> >expansion slot, lose the cassette adapter, run the speakers into the
>> >computer, get a better power supply (need to somehow get about 5 amps on
>a
>> >+5V signal into the computer... and a 7805 chip only gives 1 amp MAX),
>and
>> >make my car able to drive itself... :)
>> >
>> >-Jeff D.
>> >P.S. Anyone know where I can get a touchscreen LCD panel (color of
>course)
>> >for a relatively cheap price? it needs to be about 5" high and 7" long.
>> I've
>> >been getting prices like 600 to 800 bucks. :(
>> >
>> >
>> >----- Original Message -----
>> >From: Paul Kafasis <punkrock17@home.net>
>> >To: <ti-hardware@lists.ticalc.org>
>> >Sent: Tuesday, October 05, 1999 6:48 PM
>> >Subject: Re: TI-H: MP3 player for cars
>> >
>> >
>> >>
>> >> David,
>> >> I'm sure others can point you to lots of specific car MP3 players,
but
>> >> one suggestion is to get a RIO 500, and use a tape adapter, just like
>> >> with a portable CD Player(assuming you have a tape player). This is a
>QD
>> >> method, but it involves zero in the way of hardware hacking.
>> >>
>> >> -P
>> >>
>> >>
>> >
>> >
>>
>>
>>
>>
>
>__________________________________________
>NetZero - Defenders of the Free World
>Get your FREE Internet Access and Email at
>http://www.netzero.net/download/index.html
>