1. ECE477 Midterm Design Review: Team 1
Scott Podlogar Craig Kourtu Austin Fatt Alex DeVries
ECE477 Midterm Design Review: Team 1

2. Outline Project Overview Major Components Block Diagram
Packaging Design
Electrical Schematic
PCB Layout
Prototyping Progress
Software Development Status
Project Timeline
Questions

3. Project Overview Project Overview
The SmartPack is a backpack designed for the student for the 21st century!
It's has the features of your typical backpack along with a RFID tracking system, GPS, an onboard battery, and Bluetooth for connectivity with your phone.
This allows students to have the backpack remind them when and where they lost something, and conveniently convey that information to an app on their iPhone.
It also allows the student to use the same battery that powers their backpack to charge their iPhone.
The most similar backpack on the market only does charging.
In this section provide a concise description of your project. What is it? What will it do? What differentiates it from similar projects and prior art? Include a relevant picture of your project or “artist rendering” of the completed project.

4. PSSCs Project Specific Success Criteria
An ability to monitor the onboard battery, and use it to power external devices
An ability to notify user if inventory is missing via message on their phone.   
An ability for the backpack to take and store inventory wirelessly.
An ability for the backpack to store its current GPS coordinates.
An ability for the backpack to represent its charge state and other information via user interface.

5. Major Components M6E-M from ThingMagic UHF(900-930 Mhz)
rfid
M6E-M from ThingMagic
UHF( Mhz)
Range(1-3 meters)
2 antennas
UART
Max 1.1 A
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

6. Major Components PIC24FJ128GA010 32 Mhz 128 Kbytes of flash memory
Microcontroller
PIC24FJ128GA010
32 Mhz
128 Kbytes of flash memory
100 pins
UART,GPIO,SPI
Max 300 mA
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

7. Major Components: RN4020 Bluetooth low energy 4.1 UART iOS compatible
Bluetooth module
Bluetooth low energy 4.1
UART
iOS compatible
Max16 mA
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

8. Block Diagram Main Components 8 bit UART at 115 kbps
Bus width: 3 lines
Radio-Frequency
Identification
RFID
Module
SPI at 15 kHz
Bus width: 5 lines
Satellite
Communication
GPS
Module
Microcontroller
8 bit UART at 115 kbps
Bus width: 3 lines
Bluetooth
Communication
Include one or more images of your system block diagram here. Block diagrams should include all relevant major parts and systems, bus widths, and interface types.
Bluetooth
Module
10 lines by Ribbon Cable
2 Power lines
Interface Board

9. Block Diagram Interface Board Interface Board Battery Charger Board
Microcontroller
2 Power lines (+5V, GND)
2 lines for current sensor
2 Lines (+5,GND)
10 lines by
Ribbon cable
2 lines – I/O port pins
Interface Board
Button/LED
3 lines – I/O port pins
Fuel Gauge
1 line – I/O port pin
2 lines – SPI at 15kHz
2 lines – I/O port pins
Shift Register
8 lines
LCD

10. Packaging Design Main Component
Include one or more images of your packaging design here. Include relevant dimensions and how you are planning to manufacture your product packaging.

11. Packaging Design Interface
Include one or more images of your packaging design here. Include relevant dimensions and how you are planning to manufacture your product packaging.

12. Packaging Design 3D printing for main component
plan
3D printing for main component
Plexiglass for mounting and support
Stand-ups and mounting screws will be used
Wires and connectors will connect the ports of the battery charging board
Include one or more images of your packaging design here. Include relevant dimensions and how you are planning to manufacture your product packaging.

13. Electrical Schematic
Main Board

14. Electrical Schematic Main Board: GPS SPI connections to PIC
ON_OFF is connected to Wakeup for self start-mode
Connects to Voltage supervisor on the reset pin
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

15. Electrical Schematic Main Board : RFID READER UART connections to PIC
PIC controls the Shutdown pin
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

16. Electrical Schematic Main Board : BLUETOOTH MODULE
UART connections to PIC
PIC controls the HW/SW wake pins
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

17. Electrical Schematic Main Board: Power SYSTEM Voltage Supervisor
Ribbon Connector
Voltage Regulator
Programmer
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

18. Electrical Schematic
Interface Board

19. Electrical Schematic Interface board LCD is driven by a Shift Register
Shift Register is connected to PIC through SPI
LCD contrast is set by voltage divider
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

20. Electrical Schematic Interface board Fuse next to Power in Connector
Power Connector for Main Board
Fuel Gauge
LED in an NMOS set up
Include one or more views of your electrical schematic here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your schematics should be complete, organized, and readable.

21. PCB Layout
MAIN BOARD
3.17" x 3.44"
Click to add text

22. Voltage Regulator (+5V to +3.3V)
PROGRAMMER and Voltage regulator
Programmer
Voltage Regulator (+5V to +3.3V)
Power into the Main Board (+5V)

23. PCB Layout Ribbon Connector
Bluetooth module
Ribbon Connector
Bluetooth Module, antenna hangs off the PCB

24. PCB Layout RFID Reader Drill holes made for optional antenna placement

25. PCB Layout Microcontroller Decoupling Capacitors placed on the bottom

26. PCB Layout
Interface Board
3.5" x 1.5"

27. PCB Layout Power in connector Fuse LED Button Fuel Gauge
Interface Board
Power in connector
Fuse
LED
Button
Fuel Gauge
Include one or more views of your PCB Layout here. If necessary, break up this section into multiple slides detailing various subsystems which are easily viewable (Hint: a zoomed out view of a large electrical schematic in which nothing can be read will not be helpful for the design review). Your layout should be complete, organized, and readable.

28. PCB Layout LCD Shift Register Ribbon Connector Power out connector
Interface Board
LCD
Shift Register
Ribbon
Connector
Power out connector

29. Prototyping Progress RFID module Bluetooth module Main Components
Tx/Rx has been done with micro
Tags have been polled and EPC have been extracted
Antennas need to be optimized
Limits need to be tested
Bluetooth module
Connection between BT and phone has been established
Characters need to be sent to the phone
Describe your team’s prototyping progress here. For each of your project’s major components, what has been tested? What is known to work? What still needs to be tested, and what still needs to be proven to work?

30. Prototyping Progress LCD operation is complete LED/Button is complete
Other Components
LCD operation is complete
LED/Button is complete
GPS needs to be prototyped
Fuel Gauge chip needs to be prototyped

31. Software Development Status
Embedded Software - initializations
Peripherals
Components
SPI
Set Control registers for 2 channels of SPI
LCD
Send commands to turn LCD on, to two line mode, clear the LCD and set the cursor position
RFID
Send commands to boot firmware, set the tag protocol and set the region
Clear the buffer
UART
Set Control registers for 2 channels of UART
Set Baud Rate to 115 kbps
Bluetooth
Set the server services
Create private services with a UUID
GPS
Verify SPI communication
I/O
Set the bits of Port A to either input or output
In this section, detail team progress with software development. List out the major modules for your team’s software. For each module, detail its status (Not yet started / In development / In testing / Completed)
TIM
Determine initial sampling rate and set registers accordingly
Prototyped successfully and ready for integration into main project
Prototyped semi-successfully small adjustments needed
Not yet prototyped

32. Software Development Status
Embedded Software - interrupts
TIM
Set TIM flag
SPI2
Put data in a FIFO buffer for GPS
UART1
Put data in a FIFO buffer for RFID
Button
De-bounce the button
Set the Button flag
Fuel Gauge
Update the current charge of the battery
UART2
Put data in a FIFO buffer for Bluetooth
Set BT RX flag
Prototyped successfully and ready for integration into main project
Prototyped semi-successfully small adjustments needed
Not yet prototyped

33. Software Development Status
Embedded Software – Flag Resolution
TIM
Update the tags buffer by communicating with the RFID module.
Set the BT TX flag is there was a change
BT RX
Change the TIM rate accordingly
Button
Generate user message by pinging appropriate module
Update LCD
BT TX
Get location from the GPS
Concatenate data with tags
Send data to the Bluetooth module.
Prototyped successfully and ready for integration into main project
Prototyped semi-successfully small adjustments needed
Not yet prototyped

34. Software Development Status
iPhone Software – APP STATUS
CoreBluetooth
-Connects to microcontroller via Bluetooth, and can read private services.
View
-Display the state of backpack.
-Talks to controller
Controller
-Notifies the view when special event occurs.
Model
-Keeps track of the state of the backpack, such as battery and tag information.
Prototyped successfully and ready for integration into main project
Prototyped semi-successfully small adjustments needed
Not yet prototyped

35. Project Timeline Week 8: Order finalized PCB
Week 9: Plan/Prepare packaging, create skeleton of app
Create tests for the micro to run
Week 10: Spring Break
Week 11: Solder PCB components, and run tests to check
proper operation
Week 12: Create final code for micro/app, begin prototyping
packaging
Week 13: Finalize everything/ Debug and deal with problems
Week 14: Touch up app/optimize performance
Week 15: Buffer time for unanticipated issues
Week 16: Showcase completed project
Provide a timeline (or GANTT chart, etc.), starting from the current week until the end of the semester, detailing work to be undertaken in completing your team’s project.

36. Questions?