STATUS REPORT #2 DIGITAL UNDERWATER COMMUNICATION (DUC) GROUP 5 Jeff Prevost, Alexandra Camacho, Jennifer Moyer, Robert Mills February 2nd, 2009

Overall Need  Create a device divers can use to efficiently and inexpensively communicate underwater to facilitate a safe and rewarding dive experience.

Tasks Completed  Purchased two LCD Screens  Decided on communications topology 40kHz +/- 1kHz)  Ordered acoustic transducers  Ordered two waterproof cases  Chose a device name (DUC – Digital Underwater Communicator)  Beginning to design communications circuitry  Completed prototyping with Dragon12 board  Decided on device user menu interface structure

Ongoing Tasks  Show successful communication with serial interface using acoustic transducers to send and receive packets of data.  Finishing up UML related to Use Cases, Activity Diagrams and State Diagrams related to how the device will operate  Build code to allow for menu traversing

Upcoming Milestones  Complete program for menu system (2/11/2009)  Build communications prototype using acoustic transducers (2/16/2009)  Locate pushbutton input device that meets design requirements (2/4/2009)  Complete UML design (2/4/2009)  Build power management circuitry (2/11/2009)

Functional Block Diagram

Questions and Discussion