1. System Requirements Review Preliminary Design Review Jarret Allen Luis Cintron Michael Kubacki Robert Skinner

2. Project Overview Smart Phone Compatibility with a USB Storage Device Objective: "To enable a commercially available smart phone (Android, iPhone, Blackberry) to send a message with an embedded image attachment (at least 3MB) obtained from a USB mass storage device to a specified email address in less than 15 seconds." Project Overview 2

3. Weekly Schedule 3

4. Project Overview Weekly Schedule 4

5. Alternatives Considered Path to Proposed Solution vs. Arduino Pro-Mini V2DIP2-48 Dimensions: o Arduino Mini-Pro Board: 18mm x 33mm x 2mm (w x l x h) o Arduino Mini USB Host-Shield: 18mm x 45mm x 8mm (w x l x h) x 2 o Total Volume for Board and two(2) USB Host-Shields: 14148mm^3 Power: 5v - 12v Cost: o Arduino Mini-Pro Board: $18.95 (100+ -> $15.16) o Arduino Mini USB Host-Shield: $20.00 (100+ -> $19.96) Speed: 12 Mbps / 1.5 Mbps Host Functionality: A microcontroller that can have USB host shields (additional boards) attached to provide USB hosting functionality. Dimensions: 68.56mm x 17.78mm x 26.60mm (lxwxh) o Total Volume: 32425.31mm^3 Power: 5v Cost: $28.62 Functionality: The V2DIP2-48 provides a bridge between 2 BOMS (Bulk Only Mass Storage) devices, powered by an outside source. Custom firmware can be developed using the Vinculum II development software tool suite. For mass storage devices such as USB flash drives, VNC2 transparently handles the FAT file structure. VF2F2 Dimensions: 44.8mm x 69.8mm x 11.4mm (lxwxh) o Total Volume: 35648.26mm^3 Power: On-board DC-DC converter supplies circuitry with 3.3v & 5.5v from 2xAAA cells Cost: $37.50 Functionality: At the push of a button allows all the files on a USB mass storage device to be copied to a unique folder on another USB mas storage device. Transparently handles the FAT file structure communicating via UART, SPI or parallel FIFO interfaces via a simple to implement command set [Web site] 5

6. Alternatives Considered Advantages/Disadvantages vs. Arduino Pro-Mini Vinculum-II Advantages Transparent support for FAT file structure Android drivers available using the Android Open Accessories Initiative that allows the Vinculum-II to attach to an Android device Specifically designed to act as a USB host for mass storage device to smart phone transfers with the ability to create custom firmware Disadvantages Primary Disadvantage: 1 board + 2 shields Few example of USB hosting exist High unit cost High unit volume size Relatively heavy USB host documentation scarce Advantages Support/documentation widely available Relatively lightweight Disadvantages Relatively heavy (~350g) High unit volume Advantages Transparent support for FAT file structure Android drivers available using the Android Open Accessories Initiative that allows the Vinculum-II to attach to an Android device Specifically designed to act as a USB host for mass storage device to mass storage device transfers Programmable firmware VF2F2 Disadvantages High unit volume Difficulty to customize firmware unknown 6

7. Alternatives Considered Software Considerations 7

8. Proposed Solution Proposed Technical Solution Software Implementation: Android 2.3.4+ via Android Open Accessory Development Kit Application Development: Java in Eclipse IDE with Android SDK Hardware Components: Vinculum VF2F2 Program VF2F2 with Programmer/Debugger Module Develop custom firmware with the Vinculum-II Tool Chain Rev 1.4.2 2xAAA batteries (DC-to-DC 5v step up already in VF2F2) 8

9. Architectural Design System Architectural Design Hardware FTDI Chip VF2F2 Software Android Open Accessory Development Kit Case Options: 3D Printing Technology USF Engineering Prototyping/Machine Shop Interface: Two USB Type A Ports (Smart Phone & USB mass storage device) On/Off Rocker Switch and On/Off LED Indicator LEDs to Indicate File Copy Activity and Errors Compatibility: Android 2.3.4+ The app on the Android phone interacts with the USB Host Controller device to retrieve the list of files from the USB mass storage device and the desired file. 9

10. Power (options): 2xAAA Batteries (VF2F2 Option) DC to DC 5v Step Up in Module Circuitry 1-2xAA Batteries with DC to DC 5v Step Up VPack [Web page] Typical Current: 300mA or less Polymer Lithium Ion Battery 6Ah [Web page] 3.7v at 2000mAh[Web page] Architectural Design Brief Hardware Overview System Architectural Design Communication Flow Diagram Device Phone Storage Device User attempts to locate file using the device as the medium Request passes through the device and the file is located on the storage device 10

11. Architectural Design System Communication System Architectural Design Android Device Memory VF2F2Mass Storage Device MemoryUSB Port 1 USB Port 0 Product Application User Hardware 11

12. Architectural Design Proposed Case User Interface System Architectural Design Case Considerations:  Cost  Durability  Size  Survivability  Transportability  Ventilation 12

13. Architectural Design Software Architectural Design Brief Overview Software Requirements File Attachment Size: ~3MB Send the attached file to phone contacts via email Send the attached file to phone contacts via sms Time to Send: Less than 30 sec. User should be able to install/run in less than 5 minutes Image Formats: JPG, GIF, PNG, BMP, TIFF, and RAW Audio Formats: WAV, WMA, MP3, and FLAC Video Formats: AVI, 3GP, DIVX, FLV, MPG, WMV, MOV Technologies (APIs) Android Open Accessory Development Kit Android SDK 2.2 Google API 8 Vinculum-II Tool Chain Rev 1.4.2 13

14. Architectural Design Software Architectural Design Application Architecture 14

15. Architectural Design Software Architectural Design Process Model Planning Phase: Project Planning Pre-Beta Development Phase: Design and development of new features in order to provide a reasonable working version for demonstration. Development Phase: Remainder of design and development of all features. System Testing Phase: Organized testing of the application features. Focused diagnosis and fixing of all defects/bugs found. Beta Testing Phase: Integration testing of the hardware and software with possible patches and maintenance releases as needed. Release Preparation Phase: Final verification testing of the frozen build to be released to Raytheon. 15

16. Architectural Design Software Architectural Design Application Cycle and Flow 16

17. Architectural Design Software Architectural Design Application Mockup v1.0 Live Version on Team Web site at http://www.cse.usf.edu/~lcintron/raytheonhttp://www.cse.usf.edu/~lcintron/raytheon 17

18. Architectural Design Software Architectural Design Application Mockup v1.0 Live Version on Team Web site at http://www.cse.usf.edu/~lcintron/raytheonhttp://www.cse.usf.edu/~lcintron/raytheon 18

19. Architectural Design Software Architectural Design Application Mockup v1.0 Live Version on Team Web site at http://www.cse.usf.edu/~lcintron/raytheonhttp://www.cse.usf.edu/~lcintron/raytheon 19

20. Requirements Proposed Requirements Project Requirements with Modifications SYS02b, SYS02c, SYS02d – Device only compatible with Android 2.3.4+ SYS16 – The SYSTEM will have a total volume of at least 3564.83cm^3 SYS17 – The SYSTEM shall weigh at least 300g (VF2F2 weight currently unknown) 20

21. Requirements Proposed Requirements System Requirements Traceability Matrix 21

22. Risks Risks & Mitigation Strategies Risk: Unable to obtain list of files from mass storage device. Severity: A1 Mitigation: Alternate solution unlikely due to massive size of files on USB mass storage device. Risk: VF2F2 cannot function as a stand alone unit. Severity: B1 Mitigation: Modify case design and re-analyze power consumption figures. Risk: Files not able to transfer through VF2F2 from USB mass storage device to phone. Severity: B1 Mitigation: Verify correctness of firmware and Android app programming. Risk: The phone tries to charge once plugged into the device. Severity: B2 Mitigation: Contact FTDI to see if there is a way around it. 22 A Brief List

23. Risks Risks & Mitigation Strategies Risk: The phone does not communicate with the VF2F2 device. Severity: A1 Mitigation: Re-analyze the programming of firmware and software. Risk: Unable to program the VF2F2 to transfer individual files. Severity: B1 Mitigation: Another USB Host Controller may be necessary. Risk: The VF2F2/V2DIP2-48 shall not arrive within a week. Severity: C3 Mitigation: Continue Android software development using USB OTG technology. Risk: The VF2F2 module is defective upon arrival. Severity: B3 Mitigation: Continue software development with V2DIP2-48 or USB OTG dongle. 23 A Brief List

24. Risks Risks & Mitigation Strategies Risk: The Android application is not compatible with Android 2.3.4. Severity: B1 Mitigation: The Android application would only be compatible with later versions of Android. Risk: Team member is hospitalized/ill Severity: C3 Mitigation: The rest of the group picks up the slack with minimal lost due to documentation. Risk: System malfunctions at final demonstration. Severity: B2 Mitigation: Provide abundant documentation and video of successful trials. Risk: Production cost runs higher than expected. Severity: C1 Mitigation: Consult with industrial engineer to see what ways we can cut cost. 24 A Brief List

25. Final Issues Present Issues The V2DIP2-28 Module and Programmer/Debugger Module has been ordered However, our new design uses the VF2F2 Module The VF2F2 must be acquired as quickly as possible to proceed with hardware development. The exact details of communication between the VF2F2 and the Android application are still unknown. These details must be determined before the Android application and software on the VF2F2 can communicate. 25