NFC MENU ORDERING SYSTEM Team 47 TA Lydia

NFC MENU ORDERING SYSTEM Team #47 TA: Lydia Majure Yau Chan (Michael Chan), Pat Ding, Patric Takagi

AGENDA • Introduction • Top-Level Block Diagrams • Block Descriptions • Requirements & Verifications • Finished Product • Challenges • Future Work • Questions

MOTIVATION • Easier way to interact with restaurant staff • Take-out orders • Fair queuing • Use in foreign countries • Less reliance on staff

FEATURES • Low cost • Low power • Intuitive interface • Simple integration • Bottom line: Useful to customers & staff • Hard-wired NFC reader • Backlit LCD Module • RF communications

SYSTEM BLOCK DIAGRAM

SYSTEM (MENU) SCHEMATIC

TAGS & NFC READER

NFC READER R&V Must be able to forward the received messages to the microcontroller at 9600 kbit/s with 0. 1% bit -error.

RF TRANSMITTER/RECEIVER

TRANSCEIVER FREQUENCY

MICROCONTROLLER FLOW

MICROCONTROLLER R&V

BATTERY INDICATOR

CHALLENGES -Power Limit LCD Power Baudrate NFC reading RF transmission -NFC Reader Poorly written libraries Re-written Learned NDEF standard Writable tags

ETHICAL CONSIDERATIONS • Designed for human use • Concern for safety of the public • Sold to restaurants • Honest and realistic in stated claims

SUMMARY & FUTURE WORK • Modular design -> successful project! • Completed all verifications • Shrink size of menu • Multiple page considerations • Communication from kitchen -> menu • Reduce power consumption • Interface between smartphone and NFC Reader

QUESTIONS?