NoiseT1n

μMP3 Playback Module

http://www.roguerobotics.com/files/ump3/documentation/UMP3-110-A1-102.pdf

Schematic: http://www.roguerobotics.com/files/ump3/documentation/RR-uMP3-110-A1-schem.png

// Version
V

// Play file "B0000.MP3"
PC F /B0000.MP3

// Stop
PC S

// Pause (Play)
PC P

// Position in seconds, play count
PC Z

// Position in seconds, sample rate, bit rate
PC I

// Playback speed [x%] (90 fastest, 250 slowest)
PC X [speed%]

// Volume (0 loudest, 254 mute)
ST V [left] [right]

// Input style 1 (8 switch mode)
ST S 1

// Returns freespace totalspace
FC Q

Components

• Atmel ATmega32A
  • http://www.atmel.com/Images/Atmel-8155-8-bit-Microcontroller-AVR-ATmega32A_Datasheet-Summary.pdf
• VLSI VS1002d - MP3 AUDIO CODEC
  • http://www.vlsi.fi/datasheets/vs1002.pdf
• TI LP2992 Micropower
  • http://www.ti.com/lit/ds/symlink/lp2992.pdf
• TI SN74LVC245A
  • http://www.ti.com/lit/ds/symlink/sn74lvc245a.pdf