3. INTRODUCTION
► Ken Love
►5th-year Computer Engineering Technology student
► Vision: A Bluetooth notification device for the deaf and hard-of-hearing
people
►Flashes and vibrates when someone calls a deaf/HH person’s
smartphone
► Owners: NTID Center on Access Technology and ZVRS
4. GENERAL & DETAILED DESCRIPTION
► A keychain-sized device with a MSP430 microcontroller with WT12
Bluetooth 2.1 module
► Powered by a lithium-polymer battery with a capacity of 130 mAh
► Equipped with a super-bright LED and small vibrating motor
► Uses Serial Port Profile to communicate with ZVRS’s interpreting relay
service application on smartphones.
► Options for both, flashing, vibrating only
5. PLANS FOR NEW GENERATION
► Expand Bluetooth support to iOS devices
►Hands-Free Profile
►iAP
► Ability to download the firmware to MSP430 via USB
► Add a switch for system power controlling
► Add a RGB-LED for system notifications
6. RETROSPECTIVE
► Original product: Notification device connects with Android and Apple
smartphones via Bluetooth and flashes/vibrates to get the user’s
attention when ringing
► Final product should be same as the original, but with new and
improved features
►Downloading via USB
►Switch for turning the device on/off
► Following the project management methodologies (currently in
performing and testing)
7. RETROSPECTIVE (CONT’D)
► Biggest roadblock: Apple
►Bluetooth profile for connecting the device with iOS devices (iPhone,
iPad, etc)
►Authentication chip/co-processor
► Really like working on the project
►Researching and testing for new components
►Building the device and seeing it working
8. RETROSPECTIVE (CONT’D)
► Learned much during working on the project
►How Bluetooth and WT12 module work
►C programming language
►Populating and soldering the SMT/SMD components
► Advice for future ESDIII students
►Research and ask tech support or forums (TI’s E2E forums, Bluegiga’s
tech support, etc)
►Get the breakout devices if there are several (Easier for experimenting
and testing)
