When [falldeaf] set about making his own homebrew Mp3 player, he ended up at the same place we most do while looking into the subject, the wonderful Minty Mp3. Basing the design on [Adafruit Industries] popular board, we are presented The Mp3 Garbler.
First change of the project was to replace the sometimes difficult to find ST013, or the more expensive ST015T Mp3 decoder chip, and the CS4340 digital to analog cconverter with a single vs1001k, which we have checked out before. And while yes VLSI says that the 1001 series is a discontinued product, and it may be a bit hard to find now days, they also offer an updated model on their website, which should suit the application fine.
Next up is a useful LCD display sporting a Sparkfun lcd backpack, that shows us all the important to know music info. And finally there is a 10×14 led matrix display, that can be used to display all sort of user feedback icons, and is driven by a MAX6953, which we think is a pretty spiffy chip.
While there is no schematic, there are brd files, and source code available for your PIC18F452 or similar micro controller to complete your own
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