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Project Orion TekBand

Project Orion TekBand. Cam Proctor Ramsey Khudairi Tom Gilbert Chad Young. The TekBand. Bluetooth enabled wristband Alerts wearer when receiving a phone call Vibration LED display Wireless storage. Overview. System Overview MDR Accomplishments & CDR Goals

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Project Orion TekBand

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  1. Project OrionTekBand Cam Proctor Ramsey Khudairi Tom Gilbert Chad Young

  2. The TekBand • Bluetooth enabled wristband • Alerts wearer when receiving a phone call • Vibration • LED display • Wireless storage

  3. Overview • System Overview • MDR Accomplishments & CDR Goals • Component Implementation • Progress • Block Diagram • Remaining Tasks • Budget • Questions • Demo

  4. System Overview

  5. MDR Accomplishments • Microcontroller working • Blinking LED • Printed Circuit Board • Soldered 2mil pitch QFN package • Pairing with Bluetooth Module • Found Battery • Charged and drained

  6. CDR Goals • File system and data transfer • Caller ID • Read and write to MicroSD card • Battery charging circuit • Clasp

  7. File Transfer - Progress • Send Files via Bluetooth • UART Terminal Program • Tera Term • Microcontroller can receive files sent and read them • Avoided FTP • Had to work serially with RS232 at first • Conversion with MAX 232 Converter • USB 5V Microcontroller 3.3V • Next Step is to Create GUI

  8. Caller ID - Progress • Can notify user when cellphone is receiving a call • Bluetooth connection with cell phone • Service discovery protocol • Ordered KC-5290 to fully implement new profile • Includes audio

  9. Call Notification - Profiles • Hands Free Profile • KC-5290 • Supports audio transfer but requires antenna • No anticipated problems • Should be simple process to implement • Back up plan • Firmware code available

  10. Call Notification Overview

  11. Call Notification • Demo • Blink LED when receiving incoming phone call • Next Steps • Successfully identify the incoming phone number • Create GUI • Select which contacts correspond to LED colors

  12. MicroSD Card - Progress • Read and Write files to the MicroSD card • Connect MicroSD with File Transfer system • Store, access, and manipulate files on MicroSD

  13. MicroSD Overview - Initialize

  14. MicroSD Overview - Read

  15. MicroSD Overview - Write

  16. MicroSD • Big hurdle • 3 month project • Adjusted examples for high capacity MicroSD • Read and understood datasheets for all hardware • Example code was outdated by two versions • Had to switch Microcontrollers • PIC 16 vs. PIC 18 • Software for MicroSD storage available now • M5? • Next Step: FAT32 • Demo with File Transfer

  17. File Transfer with MicroSD Overview

  18. Battery - Progress • Battery charging circuitry • Components • Charge battery to 4.1V via USB connection • Successfully stop charging when necessary • Safety concerns

  19. Battery Charging Circuit • Designed a circuit that converted from voltage to current • Simulated and built the circuit • Had to sense the voltage across battery • Demo

  20. Battery Charging Circuit

  21. Battery Charging System Overview

  22. The Clasp • Clasp as a charger • Male/Female MicroUSB plugs • Female MicroUSB port for charging • No circuitry needed for male port

  23. Goals • File Transfer • Easy to use GUI controlling File Transfer • Sends files and receives them over Serial Port Profile • Files stored on MicroSD card • Communicate via Bluetooth • Caller ID Goals • Have microcontroller recognize incoming call • Light up LED corresponding with Caller ID • User selects LED-ID correlation via GUI

  24. Goals (continued) • MicroSD Goals • Read and Write files to the MicroSD card • Connect MicroSD with File Transfer system • Store, access, and manipulate files on MicroSD • Battery Goals • All Goals Met • Clasp Goals • Provide 5V for charging circuitry • Provide a seal

  25. Budget • KC-21 Bluetooth Module $36 • Magnets $10 • MicroUSB Ports $15 • PCB $100 • MicroSD Card $5 • KC-5290 Bluetooth Module $36 • Two-Part Silicone Rubber (x2) $36 • PIC 16 Microcontroller w/Programmer $60 • PIC 18 Microcontroller $15 • Rubber Mold Release $10 • Total: ~$350

  26. Completing the TekBand • By Spring Break – March 11, 2011 • Full demo of cell phone interface capabilities on board • Design and order PCB • File system setup • Use terminal as user interface • Edit, save, and receive files over serial Bluetooth link

  27. Questions?

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