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We are Wireless Audio ( WaWA )

We are Wireless Audio ( WaWA ). Aarthi Balachander Daniel Jiang Drew Schuster Ryne Rayburn. Updated PSSCs. An ability to encode and decode an audio stream via a digital wireless network. An ability to control volume by way of user controls on the main station.

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We are Wireless Audio ( WaWA )

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  1. We are Wireless Audio (WaWA) Aarthi Balachander Daniel Jiang Drew Schuster Ryne Rayburn

  2. Updated PSSCs • An ability to encode and decode an audio stream via a digital wireless network. • An ability to control volume by way of user controls on the main station. • An ability to interpret audio-based commands to control the system. • An ability to display system status on an LCD. • An ability to play audio from an external device to a remote external speaker setup.

  3. Constraints • Microcontroller Choice • Computation • Interface • Power • AC Powered versus Battery • Packaging • Portable • Price of Components • Microcontroller • Speech Recognition Kit

  4. Microcontroller JN5148 PIC32MX340F128H $24.42 32-bit RISC 2 UART SPI 4-input 12-bit ADC, 2 12-bit DAC, 2 comparators 128KB RAM 21 I/O Pins Built-in Wireless $7.93 32-bit RISC 2 UART SPI (used to interface with wireless module) 16-input 10-bit ADC, No DAC, 2 comparators 128KB RAM 64 I/O Pins

  5. Speech Recognition HM-2007 RSC-164 Needs external RAM Detailed Data Sheet Toolkit Available Can “train” speech 1.92 second word 300ms response time or less Widely used Has on-board memory Simple micro (unneeded) Fewer resources available online

  6. Display uOLED GLK12232-25-WBL $99.95 128x128, 256/65K colors 1.79x1.32x0.25 inches Serial Cmd. Platform Onboard micro-SD adapter Detailed Data Sheet Large Command Set $78.95 20 char. x 4 lines 3.9x2.4x0.4 inches RS232 Data Sheet Command Set

  7. Questions?

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