Thats insane! If its not a dumb question, where do you buy a socket in the UK? I can only find special ajustable ones for around £120
same place i found the chip! i know its not helpful, but people were more helpful towards hobbiests as little as 6months ago, because of people abusing the sample service etc. a lot of companies have lost patientance. And this project was quite a few years old (well it feals that way, probably only 18months!). just try ringing round, if you're really stuck, i remeber this prototyping system some tech was telling me about, that has pre-made pcbs for most packages, u could just bake it onto one of those.
could i lengthen battery life if i just used a lower voltage and more efficient components? i'd need some help finding low power components that are compatable to the yampp-7
I thought the yampp7 had decent battery life? I don't think changing components like whould help that much -- surely the amp and the cf card use the most elecricity by a long way? TheAnimus, how long did it take you to write the part of the program for reading the hdd/cf card/whatever you used? This thread has got me wanting to make one again grrr. ch424
First i used the atmel using a SmartMedia Card, that was easy because its just MMC interface which the chip had a reader for built in. Then i used CF with an IDE interface, that didn't take to long, its all well documented, and even examples on piclist.
<Wisconsin Accent>oh, you betcha</Wisconsin Accent> there will be an epic project log for my "first" project ("First" Project, on Bit) of biblical proportions
holly crap man i have been looking for something like this. i wonder what the quality is like though? it will be used as a replacement for my cd player in my car. think itll work? lots of hd's here: http://www.zipzoomfly.com/jsp/ProductList.jsp?ThirdCategoryCode=011006
i guess you can do one cool thing with crappy CF based players I'd use dealtime, they carry the ultra slim line 2.5" hard drives, from the title i imagine they are the thickness of a post-it note i figure after i get done with the PJRC i'll make a yampp-7 to fit inside the tin
DIY MP3 for under $50 http://www.hackaday.com/entry/1234000607027290/ "do you have some advanced electronics skills, 50 bucks, a spare altoids tin, and the need to out-cool your ipod toting friends? if so, check out limor’s instructions for building an mp3 player from scratch. it uses compact flash, has a built-in fm transmitter, and smells real nice. awesome!"
that design kinda seems to suck, plus the Yampp-7 has a support forum. a LCD on the lid would be cool, so it looks totally normal on the outside (save for a headphone jack on the side), then open the lid and the LCD is on top and control buttons on the bottom blue LED's and EL backlight are a must
I won't argue about the quality but I found it to be a good starting point formyself. I'm not going with her design but I was able to extrapolate some good information from her schematics. Of course one that that I am lacking is a PIC/EPROM programmer. I'm personally going to take a less efficient route in the interest of learning; I'm using a 12 MHz 68000 (I wonder what types of bitrates I can squeeze out of it). Last night I made an order for the equipment that I need to make a programmer. Using the 74164 I was able to use the computers printer port as a 64 bit output port (I plan to use 32 bits for address and 32 bits for data).,
... good... luck...? OK, i hate not understanding how something works (thats why almost every electronic toy from ages 6-14 was in peices at least once) i'm learning about PIC's today Thanks TheAnimus, i didn't know EL hummed, looks like bloo led's, should've gone that way now that i think of it, the player design works at about 3V, so i could connect them in parallel. anyone else that plans on building something like this, i would reccomend (and am doing) using a yampp (they gots a forum to ask questions) or a PJRC (I'm buuying the pre-programmed parts in a kit). i'm sure there are similar websites with similar options, but those two are the ones that I've found.
EL dosen't have to hum, its just most do, and it drives me nuts, u can't hear one over say a cd drive, or somthing, but my watch that has an EL backlight (one of the first that did iirc, its '96 ne way) makes a sound, its anoying when i can't sleep because i turn it on to check the time, then hear the sound....... drives me nuts.
i was reading up on EL, evidently they run at a high voltage, requiring an inverter, but LED's as a sidelight wouldn't. LED's still seem to be simpler ... and if you're awake to check your watch you aren't sleeping in the first place
