MP3 Player¶

Purpose¶

The purpose of this project was to create an MP3 player that allowed you to pause and search songs from an S/D card.

Wiring¶

For the LCD Screen:

GND 0v VCC 3.3v VO [ 1k resistor ] 0v RS p10 RW 0v E p12 D0 D1 D2 D3 D4 p15 D5 p16 D6 p29 D7 p30

For the S/D Card:

SparkFun MicroSD Breakout Board MicroSD Breakout mbed CS o---o 8 (DigitalOut cs) DI o---o 5 (SPI mosi) VCC o---o VOUT SCK o---o 7 (SPI sclk) GND o---o GND DO o---o 6 (SPI miso) CD o

For the MP3 Board VIN---o (40) VOUT NC MICN RIGHT (15) o--RST GBUF---o GND of Speaker (16) o--DREQ LEFT---o VCC of Speaker NC GPIO 2 GPIO 1 NC NC GPIO 3 GPIO 0 NC (17) o--BSYNC SO---o (12) miso \ NC TX SI---o (11) mosi }SPI Bus NC RX SCLK---o (13) sck / GND (1) o--GND CS---o i.e.(14)

A DIP switch was also used in p28 to toggle the pause and seek functionality.