PJRC.COM Offline Archive, February 07, 2004 Visit this page on the live site |
| ||
Shopping Cart Checkout Shipping Cost Download Website |
Home | MP3 Player | 8051 Tools | All Projects | PJRC Store | Site Map |
You are here: MP3 Player User Photo Gallery Daniel Pead | Search PJRC |
From Daniel Pead's email:
MP3 player in a home-made acrylic and aluminium case, with a Toshiba
2.5" hard drive scavenged from an elderly notebook. Note the fan
(cannibalised) blowing directly on the regulator, which otherwise gets
rather hot...
The drive sits in an aluminium cradle, with a couple of strips of foam
tape for added cushioning, and is held in by high-tech rubber bands...
Pushbuttons, power LED (12V type with integral resistor) and misc.
connectors from Maplin (www.maplin.co.uk). The 2.5" hard drive cable
was from Farnell (www.farnell.co.uk) P/N 961-280.
This is designed for head-up use in a car with no display - so I
recorded myself reading out each CD title and used these to implement a
"talking index" mode - press the "index" button and the player starts
"reading out" the disc titles, when you hear the one you want press
"index" again and it starts playing.
To get files onto the hard drive, I modified an existing removable 3.5"
HD rack to accept 2.5" drives, using a "44-to-40 + power" adapter cable
from Farnell, P/N 96-1413.
Detail of the modified PCB from the rack (left) and the adapter cable (top):
The original ribbon cable header has been removed and replaced with a
40 way pin strip, so it can now accept either the 40-44 way adapter
(top) or a normal 40 way cable (bottom).
The hard part was desoldering the old 40 way header!
Return to the User Photo Gallery main page.