1. Eliminating paper & increasing user’s shopping experience with
Paperless receipts

2. Project Team
Zeshan
Nurani
Nelson
Stoik
Brad
Davis

3. Project Overview
Why do we still use paper receipts if everyone has a phone?
Paper Receipts
Cost of paper
Must be replaced when empty
Get damaged
Get lost
…risk of paper cuts!
Electronic Receipts
Stored right on your phone
Cost nothing
Increased user experience
Won’t get lost
…no risk of paper cuts!

4. Project Overview [4] Google Nexus 5 [1] PS/2 Barcode Scanner
[2] Altera DE2
[3] NFC Module
[1]
[2]
[3]
[4]

5. Task Overview Input Processing Output
Barcode Scanner and Interfacing with PS/2 - Nelson
Processing
Data Input and Processing - Zeshan
Interfacing with memory - Nelson/Zeshan
UI / Interfacing with board - Nelson/Zeshan
Output
Receipt export to NFC module - Nelson/Zeshan
Interfacing with NFC module - Nelson/Brad
Peer-to-Peer communication - Brad
Android Development - Brad

6. Control Flow

7. Software Flow

8. Altera DE2

9. Code Example 1
PS/2 Interfacing

10. Code Example 2
Finding item in database and adding it to the receipt

11. Code Example 3
Android App – XML code

12. Code Example 4
Android App - List View, File Parsing

13. Testing - System Software
No major testing was required.
As we add functionality, we create some tests on the fly to verify functionality.
Button implementation
Qsys PIO options, initialization, ISR to print to console
PS/2 implementation with keyboard input
Qsys, initialization, driver testing
Item searching and receipt population
Debugging in IDE to follow code and check variables/memory

14. Testing - Android App Application Development Testing
Android Dev Environment
Testing Applications on Devices
Storage of receipt implementation
Testing the file I/O within applications and android devices
Testing will need to be done once the NFC code has been implemented

15. Features to add Large item’s database w/ query’s
Possibly stored on SD card
Encryption
Receipt data stored on board
Receipt data on the phone
Notifications
QR Code support (new hardware needed)