Software Narrative Left to Right Matt Finn Brian

Software Narrative (Left to Right) Matt Finn Brian Crone Samuel Oshin Yonatan Feleke

Project Overview �Future Cash Register • The future cash register is a point of sale box designed to make transactions completely wireless through the use of the NFC technologies. It will accept payments and send receipts through NFC. It will also aide the cashier with ordering through voice recognition

Project-Specific Success Criteria � Ability to customize the inventory via the user interface (Atom) � Ability to communicate with an NFC device (d. SPIC 30) � Ability to interface with an IR sensor to detect the presence of a user (d. SPIC 30) � Ability to display prompts to user through LCD (d. SPIC 30) � Ability to aid cashier by highlighting menu choices while placing order with voice recognition (Atom)

Block Diagram

Microcontroller � ds. PIC 30 F 5011 • • • Architecture: 16 -bit CPU Speed (MIPS): 30 Memory Type: Flash Program Memory (KB): 66 RAM Bytes: 4, 096 Operating Voltage Range: (V) 2. 5 to 5. 5 I/O Pins: 52 Pin Count: 64 Internal Oscillator: 7. 37 MHz, 512 k. Hz Digital Communication Peripherals: 2 -UART, 2 -SPI, 1 -I 2 C Analog Peripherals 1 -A/D 16 x 12 -bit @ 200(ksps) Timers 5 x 16 -bit 2 x 32 -bit

Software Design Consideration �Split into 3 parts • Atom • Microcontroller • Tester

Atom Application �Devloped in C# � 6 Modules • • • GUI Restaurant/Menu class structure Voice Recognition Serial communication with micro Cryptography/Security Database backup

Modules � GUI • Ordering screen • Checkout/payment screen • Admin screen � Restaurant/Menu Class structure • Top level class: contains inventory, restaurant info, and admin password • Inventory class: contains lists of menu items along with lists of combo items • Menu Item class: contains item name, price, description, keywords, possibly picture • Combo Item class: contains list of menu items included in combo, name, keyword, and price

Modules Cont. �Voice Recognition • Uses System. Speech. Recognition namespace �Serial Communication • Uses Serial. Port class from System. IO. Ports namespace �Cryptography/Security • Uses System. Security. Cryptography namespace • Possibly AES • Will encrypt before storing onto hard drive �Database - managed on SQL server

Micro Controller Application �Micro Controller: • Poll infrared �To identify if customer is near • Send a “Go” signal �Through UART to COM port. • Wait for “Pay” signal • Send to LCD �Place NFC close to red circle

Micro Controller Application �Micro Controller • Poll NFC until not empty �Read through SPI • Send a “Pay” Signal �With Credit Card Credentials • Wait for “Receipt” Signal �Store Receipt to Ram • Write to NFC FIFO Manager �Send Through SPI to NFC

Block Diagram Part 1

Block Diagram Part 2

Tester Application �Android SDK • Android App in development • Will be using an NFC Enabled Device to test

Software Narrative

Questions? Be Gentle