Texas Instruments

MP3 Encoder/Decoder with capacitive touch interface: OLED display & SD card mass storage


The Audio Capacitive Touch design module is a plug in board for the MSP430 LaunchPad development kit (MSP-EXP430G2). This TI Design features several capacitive touch elements including a scroll wheel: button and proximity sensor: 9 LEDs that provide instant feedback as users interact with the capacitive touch elements.The TMS320C5535 DSP and TLV320AIC3204 CODEC also provide MP3 encoding & decoding capabilities. On-board USB: microSD card: OLED display: and headset interface round out the system. This solution features 2 embedded processors that cooperate and communicate via a UART API/interface between the C5535 DSP & MSP430 microcontroller.

  • MSP430 microcontroller responsible for...Capacitive Touch Sensing & LED feedback Gesture / Event Detection Host application that controls BoosterPack UART communication to C5535 DSPC5535 DSP responsible for...MP3 Encode & Decode SD Card File System USB Mass Storage Class OLED: Codec
  • AV receiver
  • Portable media player
Product Categories


Part Number Name Companion Part
MSP430G2553 MSP430G2553 Buy Datasheet
TMS320C5532 TMS320C5532 Buy Datasheet
TMS320C5533 TMS320C5533 Buy Datasheet
TMS320C5534 TMS320C5534 Buy Datasheet
TMS320C5535 TMS320C5535 Buy Datasheet

Bill Of Materials

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Design File

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Other Documents

Title Updated Type Size (KB)
MP3 Encoder/Decoder Bill of Materials (BOM) 17 Jun 2014 PDF 39
MP3 Encoder/Decoder Altium CAD Files 17 Jun 2014 ZIP 622
MP3 Encoder/Decoder Schematic 17 Jun 2014 PDF 146