Post by thread:[EE]/[PIC] Any do-it-yourself USB MP3 player kits

Unimpressed by the cheapest USB MP3 players (brittle controls, unresponsive UI and noisy playback), and too mean to buy a well developed model, I'd like to see if I can find the recipe for building my own (hopefully pocket-sized) player, based on some sort of PIC. Any suggestions please? Regards, Matt

Matthew Rhys-Roberts wrote: > Unimpressed by the cheapest USB MP3 players (brittle controls, [...] > Any suggestions please? forum.microchip.com discussed about it at least twice. http://adpm.homeip.net/picgoogle.html returns... :) forum.microchip.com/tm.aspx?m=166133&mpage=2&key= http://forum.microchip.com/printable.aspx?m=218076 Basically, the way to go is a 18F PIC + hardware MP3 decoder, or try a Open source implemntation with a dsPIC... -- Ciao, Dario

> Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for > building > my own (hopefully pocket-sized) player, based on some sort of PIC. did you google? there are plenty MP3 player designs, often AVR + MP3 decoder. software-only MP3 decoding might just be possible on the fastest dsPICs, but a 60 Mhz ARM is more comfortable (and still a bit of a challenge). I dunno waht causes the noisy playback, but I am not sure you'd do better yourself... Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: http://www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: http://www.voti.nl/hvu

There's a guy with a few PIC based designs at http://www.teuthis.com -Randy On 7/12/07, Matthew Rhys-Roberts <spam_OUTmattTakeThisOuTnu-ins.com> wrote: > Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for building > my own (hopefully pocket-sized) player, based on some sort of PIC. > > Any suggestions please? > > Regards, > Matt > > -

Looks very very cool! John --- Randy Glenn <.....randy.glennKILLspam@spam@gmail.com> wrote: {Quote hidden}> There's a guy with a few PIC based designs at > http://www.teuthis.com > > -Randy > > On 7/12/07, Matthew Rhys-Roberts <mattKILLspamnu-ins.com> > wrote: > > Unimpressed by the cheapest USB MP3 players > (brittle controls, > > unresponsive UI and noisy playback), and too mean > to buy a well > > developed model, I'd like to see if I can find the > recipe for building > > my own (hopefully pocket-sized) player, based on > some sort of PIC. > > > > Any suggestions please? > > > > Regards, > > Matt > > > > --

Other option, that worked very well for me, is to buy a cheap and simple SD MP3 device on eBay, and add logic inside it. If you look inside on this one for instance *http://tinyurl.com/2w7u5e*, you would be surprised how much you get for the price, and you have already the hard work done (SD card access, MP3 decoding, etc) only thing you need to add is digital control thorugh the PIC, LCD, etc. Equivalent proto devices are sold by 10x this price. 2007/7/12, Matthew Rhys-Roberts <.....mattKILLspam.....nu-ins.com>: {Quote hidden}> > Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for building > my own (hopefully pocket-sized) player, based on some sort of PIC. > > Any suggestions please? > > Regards, > Matt > > -

On 7/12/07, Matthew Rhys-Roberts <EraseMEmattspam_OUTTakeThisOuTnu-ins.com> wrote: > Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for building > my own (hopefully pocket-sized) player, based on some sort of PIC. > > Any suggestions please? > The classic design: http://www.ladyada.net/make/minty/ -- Mark Rages, Engineer Midwest Telecine LLC markragesspam_OUTmidwesttelecine.com

On 12 Jul 2007 at 14:56, Matthew Rhys-Roberts wrote: > Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for building > my own (hopefully pocket-sized) player, based on some sort of PIC. > > Any suggestions please? It might not be exactly what you are looking for, but these look pretty cool... http://www.vinculum.com/prd_vmusic1.html Price is good, can afford to throw away the plastic enclosure. Simple interface to PIC or other controller. Doesn't give you a PC interface, but loading music onto the USB flash drive direct from the PC is not difficult. -- Brent Brown, Electronic Design Solutions 16 English Street, St Andrews, Hamilton 3200, New Zealand Ph: +64 7 849 0069 Fax: +64 7 849 0071 Cell: 027 433 4069 eMail: @spam@brent.brownKILLspamclear.net.nz

Thanks for all your replies, much obliged Matthew Rhys-Roberts wrote: {Quote hidden}> Unimpressed by the cheapest USB MP3 players (brittle controls, > unresponsive UI and noisy playback), and too mean to buy a well > developed model, I'd like to see if I can find the recipe for building > my own (hopefully pocket-sized) player, based on some sort of PIC. > > Any suggestions please? > > Regards, > Matt > >

Do a search for DAISY MP3 player. Its not pocket size but you could redo the board maybe to make it smaller. Uses a PIC18F device...can't recall what it is exactly and a MP3 decoder chip from VLSI and stores the files on a SD card. Its a kit, one SMT chip (the MP3 decoder) but otherwise it takes an hour to build it, PIC is pre-programmed and the sound is just as good as my ipod or nureos player. Its around $100 but for what I needed it for, was easier to build it than hack something else. The interface can be parallel or serial as well. --------------------------------- Need a vacation? Get great deals to amazing places on Yahoo! Travel.