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Future Register: NFC-Enabled Fast Food Purchasing System

This system facilitates fast-food transactions through NFC-enabled cell phones, customizable inventory, and cashier assistance. Key components include a microcontroller for user prompts, NFC controller for credential transmission, pressure sensor for user detection, and LCD for prompts display. The system also features an Atom board with touchscreen monitor, microphone, and WiFi capabilities. For questions and details, refer to the preliminary schematic provided.

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Future Register: NFC-Enabled Fast Food Purchasing System

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  1. Theory of Operation and Hardware Design Group 14: Brian Crone Matt Finn Samuel Oshin Yonatan Feleke

  2. Review • Future Register • Utilizes customer input to facilitate purchasing transactions in an fast-food style restaurant • Can communicate with a customer’s NFC-enabled cell phone to digitally transmit credit card information and receipts • Vendor will be able to customize the inventory through the user interface

  3. PSSC Ability to customize the inventory via the user interface (Atom) Ability to recognize the NFC device, transmit customer’s credentials into hard drive, and also encrypt (µC) Ability to interface with a pressure sensor to detect the presence of a user (µC) Ability to display prompts to user through LCD (µC) Ability to aid cashier by highlighting menu choices while placing order with voice recognition (Atom)

  4. Subsystems • Microcontroller • NFC Controller • Pressure Sensor • Small LCD Screen • Atom Board • LCD touch monitor • Microphone • WiFi

  5. Microcontroller • dsPIC30F5011 • 2.5V – 5.5V • SPI • 12-bit ATD • GPIO

  6. NFC Controller • PN532 • 13.56 MHz • 2.7V – 5.5V • 424 Kbits/s • NFCIP-1 Protocol • SPI up to 5 MHz

  7. Pressure Sensor and LCD • Pressure Sensor: MPVZ5004GW7U • Produce up to 5V • Connect to analog pin on µC to produce 12-bit digital signal • LCD: C-51847NFJ-SLW-AND • Supply Voltage: 4.5V – 5.5V • GPIO Pins

  8. Atom Board • Intel Atom Processor D510 • 12V DC Input • 2GB RAM • 40 GB SATA Hard Drive • Connect to µC via COM port • Utilize USB, VGA, and Microphone ports

  9. Atom Board Peripherals • LCD Touch Monitor • VGA for graphics • USB for touch input • Separate power supply • Microphone • 3.5mm connector • WiFi • USB WiFi transceiver

  10. Preliminary Schematic

  11. Questions?

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