Post : WAV music player uses an ATtiny
URL : http://hackaday.com/2012/11/11/wav-music-player-uses-an-attiny/
Posted : November 11, 2012 at 10:00 am
Author : Brian Benchoff
Tags : attiny2313, audio player
Categories : ATtiny hacks

http://hackadaycom.files.wordpress.com/2012/11/music.jpeg

We're very accustomed to seeing small media player builds, but [txyz]'s ATtiny-powered audio player (http://txyzinfo.blogspot.com/2012/11/AVR-attiny2313-wav-music-player-from-SD-card-microSD-MMC.html) is one of the smallest and most feature-packed we've seen.

The audio player is powered by the very small and very inexpensive ATtiny2313. The music is stored on an SD card - a maximum of 2GB of WAV files recorded in mono at 32kBps at an 8-bit depth. On boot, the ATtiny loads the first audio file from the card and outputs it through a speaker connection.

To make things interesting, [txyz] made the audio player controllable via a serial connection. Once a small FTDI adapter is connected to the player, [txyz] can connect to it through a terminal and run through his playlist.

Even though the player is controllable through a serial port, there are a few pins left over that [txyz] could attach to buttons, if so desired. With a battery pack, this would turn his music player into the homebrew equivalent of an iPod shuffle. With the low component count, it might actually be cheaper than the shuffle, if [txyz]'s time is free, that is.

Video after the break.

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