Cycle One Presentation Team Jalapeno

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Cycle One Presentation Team Jalapeno

• Thursday, October 14, 2004

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Team Structure

• Rigo Macias(CE)
• Nathan Oertel(CE)
• Matthew Sneeden(CE)
• Aaron Staves(CE)
• Faculty Advisor Dr. Welch

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Introduction

• Problem
• 3 different audio devices
• Home Stereo
• Car Stereo
• Portable
• Expensive
• Inconvenience of Transporting Media

• Solution
• One device
• Portable
• Home Docking Station
• Car Docking Station
• Save Money
• Eliminate need to transfer media

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Primary Tasks

• The unit will be functional for portable use
• Support Functions Play, Stop, Next/Previous
  Track, Volume Control
• LCD will display functional data
• An adequate power system will be designed
• PC interface/software will be complete for data
  transfer
• Storage of digital music on a mass storage device
  will be possible

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Secondary Tasks

• MP3 Track information will be displayed by the
  LCD
• All three applications of the unit will be
  functional
• The docking stations will be fully functional
• Amplifiers for speaker output
• Power converters will be designed
• Software for advanced MP3 file management

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Additional Tasks

• FCC/CE testing/certification
• Remote control operation of the unit
• Record capability
• Playlist capability
• FM radio capability

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Current Status

• All primary hardware research completed
• Research conducted in the following areas
• Mass Storage Devices
• MP3 Decoders/Microcontrollers
• LCD Displays
• Battery Devices
• Hardware decisions made based on research results

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Device Architecture
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Mass Storage Device
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Decision Criteria

• Criteria Used
• Portability
• Economics
• Manufacturability
• Design Decision
• Cost
• Physical Size
• Capacity

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Current Market

• In media players today there are two main types
  of mass storage devices that are mainly used
• Flash Memory
• Hard Disks

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Flash Memory

• Solid State Circuitry
• Extremely Portable
• Low Power Consumption
• Expensive
• Small Capacity

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Hard Disks

• Mini Drives
• Ideal For Portable Use
• Standard IDE Interface
• Low Power Consumption
• Shock Resistant
• Moderately Expensive

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Cost Analysis
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Recommendation

• Mini Hard Drives
• Low Power
• Portable
• Large capacity
• Low cost compared to Flash Memory
• Specific Model Recommendation
• Toshiba MK Series
• Research further and obtain a drive late cycle 2

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MP3 Decoders/Microcontrollers
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Decision Criteria

• Criteria Used
• Portability
• Controls
• Economics
• Manufacturability
• Design Decision
• Interface
• Size

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Current Market

• In embedded systems, there are two
  implementations that can be used to decode MP3
  information
• MP3 Decoder Chip
• Microcontroller with Embedded MP3 Decoder

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MP3 Decoder Chip

• Inexpensive
• More Design Options
• Requires Numerous Additional Components
• Large Circuit Required to Interface Components

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Microcontroller with Embedded MP3 Decoder

• Interfaces for Storage Devices Built In
• Requires Few Additional Components
• Small Circuit
• Inexpensive
• Capabilities Limited by Microcontroller

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Recommendation

• Microcontroller with Embedded MP3 Decoder
• Low number of additional components required
• Small Circuit
• Select specific model
• Atmel AT89C51SND1
• Built in IDE interface
• Large amount of technical support available
• Obtain MP3 decoder late cycle 2

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LCD Display
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Decision Criteria

• Criteria Used
• Economics
• Manufacturability
• Design Decision
• Size of Display Digits Needed
• Cost

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Current Market

• In audio devices today, two display types are
  commonly used
• LCD Character Display
• LCD Graphical Display

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LCD Character Display

• Inexpensive
• Compact
• Large Display Digits
• No Color

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LCD Graphical Display

• Capable of Attractive Graphics
• Color
• Display Digit Size Depends on Programming
• Expensive

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Recommendation

• LCD Character Display
• Large Display Digits
• No additional programming required
• Inexpensive
• Specific Model Recommendation
• CrystalFontz CFAH1602A-YYB-Jp
• 12 x 2 Character Display
• Obtain LCD Character Display late Cycle 2

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Battery Unit
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Decision Criteria

• Criteria Used
• Economics
• Manufacturability
• Environmental
• Portability
• Design Decision
• Cost
• Size
• Waste Produced

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Current Market

• In the current market, there are three types of
  batteries commonly used in portable devices
• Alkaline
• Lithium-Ion
• Polymer

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Non-Rechargeable Alkaline

• Inexpensive
• Large
• Not Rechargeable
• Short Life
• Thrown Away After Use

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Lithium-Ion

• Lightweight
• Small
• Rechargeable
• Moderately Expensive

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Polymer

• Lightweight
• Small
• Rechargeable
• Expensive

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Recommendation

• Lithium-Ion Battery
• Less-expensive than Polymer
• Small Size
• Rechargeable
• Specific Model Recommendation
• Ultralife UBP103450/PCM Lithium-Ion

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Prototype Approximation Cycle 2

• Atmel AT89C51SND1 reference model 212.00
  (Single-chip cost of 12.00)
• Toshiba 40 GByte mini-IDE hard drive 168.00
• 12 by 2 character Liquid Crystal Display 11.00
• Lithium Ion Battery 10.00-26.00
• Approximate Total 400

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Cycle 2 Plans

• Finalize selection of components
• Determine use of microcontroller I/O
• Determine interfacing between components
• Study microcontroller programming environment

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Beyond Cycle 2

• Cycle 3 Design of MP3 player and docking
  stations
• Cycle 4 Construction and testing of MP3 player
• Cycle 5 Final circuits designed and MP3 playback
  functionality completed
• Cycle 6 Finalize construction with required
  specifications included
• Cycle 7 Cosmetic enhancements and implementation
  of extra specifications

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Conclusion

• Cycle 1 has concluded successfully.
• All project milestones for this cycle have been
  achieved.
• Research shows that the project is feasible and
  on target for completion.
• The project is on track to continue into Cycle 2.

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Conclusion

• Thank you for attending this presentation.
• Are there any question or comments??