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Wireless Audio Control System for Enhanced User Experience

The Wireless Audio Control System (WaWA) offers a sophisticated solution for encoding and decoding audio streams through a digital wireless network. Key features include user-controlled volume adjustments on the main station, interpretation of audio-based commands for system control, and LCD display of system status. Additionally, it enables audio playback from external devices to remote speakers. The project integrates multiple microcontrollers and considerations for power sources, portability, and component pricing, aiming to balance performance and affordability.

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Wireless Audio Control System for Enhanced User Experience

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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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