View source for S14: Hyperintelligent NFC Locker of the Future

=== Grading Criteria ===
<font color="green">
*  How well is Software & Hardware Design described?
*  How well can this report be used to reproduce this project?
*  Code Quality
*  Overall Report Quality:
**  Software Block Diagrams
**  Hardware Block Diagrams
**:  Schematic Quality
**  Quality of technical challenges and solutions adopted.
</font>

== Hyperintelligent NFC Locker of the Future ==

== Abstract ==
This section should be a couple lines to describe what your project does.

The team's idea behind the Hyperintelligent NFC Locker of the Future was to reinvent the currently outdated system of rental lockers. Current rental lockers require a user to input money to release a key and lock the locker. Then, when the user is done with the locker, they use the key to unlock the locker and the key is now stuck there for the next user. The Hyperintelligent NFC Locker of the Future is modernizing this process by using NFC technology from a user's smartphone as the "key".

== Objectives & Introduction ==
Show list of your objectives.  This section includes the high level details of your project.  You can write about the various sensors or peripherals you used to get your project completed.

=== Objectives ===
The objectives of the Hyperintelligent NFC Locker of the Future include:
#
# 
# 

=== Introduction ===
A user of the Hyperintelligent NFC Locker of the Future will walk up to a locker not being used and request a key by placing his/her phone on the NFC module. The key will save to the phone application. After receiving the key, the user can now lock the locker by issuing a lock command with the phone application and saved key. After unlocking the locker, the key will now be erased so the user can't use the lock again unless they go through the process again.

=== Team Members & Responsibilities ===
*  Devin Villarosa
**   Driver Development, Project Manager
*  Hien Nguyen
**   Locker Construction, Mobile Application Development
*  Gregory Pace
**   FreeRTOS Software Design, Networking

== Schedule ==
Show a simple table or figures that show your scheduled as planned before you started working on the project.  Then in another table column, write down the actual schedule so that readers can see the planned vs. actual goals.  The point of the schedule is for readers to assess how to pace themselves if they are doing a similar project.

{| class="wikitable"
|-
! scope="col"| Week#
! scope="col"| Task
! scope="col"| Projected Completion Date
! scope="col"| Actual Completion Date
! scope="col"| Status
! scope="col"| Notes
|-
! scope="row"| 1
| Order Parts
| 3/21
| 3/21
| Completed
| Some changes to the designs were made and extra parts were ordered after the initial date.
|-
! scope="row"| 2
| NFC Module
| 3/28
| 
| Incomplete
| Documentation was limited and getting started on the code was difficult
|-
! scope="row"| 3
| Locker Application
| 4/4
| 4/18
| Completed
| Constructing the locker was fairly quick and simple. However, figuring out how to attach our locking mechanism and place our components in the box took longer than expected.
|-
! scope="row"| 4
| Android Smartphone Application
| 4/11
| 
| Incomplete
| A lot of documentation on NFC applications is provided by Android.
|-
! scope="row"| 5
| Communication Between Phone and Locker
| 4/18
| 
| Incomplete
| 
|-
! scope="row"| 6
| Implementing a Two Locker System
| 4/25
| 
| Incomplete
| Actual completion date was pushed back to do difficulties of finishing the NFC module component.
|-
! scope="row"| 7
| Reserved to Catch Up
| 5/2
|
| Incomplete
| Used time to figure out how to get NFC module to work.
|-
! scope="row"| 8
| Reserved to Catch Up
| 5/9
| 
| Incomplete
| Finalized NFC module and multiple locker system.
|-
! scope="row"| 9
| Final Tests and Aesthetics
| 5/16
|  
| Incomplete
|
|}

== Parts List & Cost ==
Give a simple list of the cost of your project broken down by components.  Do not write long stories here.


{| class="wikitable"
|-
|+ Bill of Materials
! scope="col"| 
! scope="col"| Quantity
! scope="col"| Part
! scope="col"| Price Per Unit
|-
! scope="row"| 1
| (3)
| [[SJ_One_Board|SJ One Board]]
| $80
|-
! scope="row"| 2
| (1)
| [//www.homedepot.com/p/Unbranded-1-in-x-12-in-x-8-ft-Select-Pine-Board-HDPR11208/203412642?N=5yc1vZbqmc 1 in. x 12 in. x 8 ft. Select Pine Board]
| $33.46
|-
! scope="row"| 3
| (2)
| [//imall.iteadstudio.com/im130625002.html ITEAD PN532 NFC MODULE]
| $17.00
|-
! scope="row"| 4
| (2)
| [//www.amazon.com/Universal-Heavy-Power-Actuator-hardware/dp/B00BSKTUXO/ref=sr_1_12?ie=UTF8&qid=1398982441&sr=8-12&keywords=linear+actuator Universal Heavy Duty Power Door Lock Actuator Motor 2 Wire 12V]
| $5.13
|-
! scope="row"| 5
| (2)
| [//www.amazon.com/Leegoal-Stepper-Driver-Controller-Module/dp/B008BSGA7K/ref=sr_1_1?ie=UTF8&qid=1398982807&sr=8-1&keywords=motor+controller Leegoal L298N Stepper Motor Driver Controller Board Module]
| $7.50
|-
! scope="row"| 6
| (2)
| [//www.amazon.com/dp/B008B4QIV2/ref=pe_385040_30332190_TE_M3T1_ST1_dp_1 ENC28J60 Ethernet LAN Network Module For 51 AVR STM32 LPC]
| $7.31
|-
! scope="row"| 7
| (1)
| [//www.amazon.com/dp/B000M2TAN4/ref=pe_385040_30332190_TE_M3T1_ST1_dp_2 TRENDnet 5-Port Unmanaged 10/100 Mbps GREENnet Ethernet Desktop Plastic Housing Switch, TE100-S5]
| $9.99
|-
! scope="row"| 8
| (1)
| [//www.amazon.com/dp/B008MUD9IK/ref=pe_385040_30332190_TE_M3T1_ST1_dp_3 Logisys 480W 240-Pin Dual Fan 20+4 ATX Power Supply PS480D2]
| $13.99
|}

== Design & Implementation ==
The design section can go over your hardware and software design.  Organize this section using sub-sections that go over your design and implementation.

=== Hardware Design ===
[[File:CmpE146 S14 NFCLocker BlockDiagram.jpg]]

As shown above, the NFC locker system is composed of three uC: Two masters and one shared slave. The two masters drive their independent actuator subsystem, independent NFC module subsystem, and shares the slave.

The masters pull data from its NFC subsystem, and sends the data to the slave. The slave will either accept or reject the password. If the password is verified, the slave will then send information to the master, where the actuator subsystem will either lock or unlock the locker.

====Power System Design====

[[File:CmpE146 S14 NFCLocker PowerDiagram.jpg]]

{| class="wikitable"
|-
|+ System Powering Table
! scope="col"| 
! scope="col"| Submodule
! scope="col"| Voltage Needed
! scope="col"| Voltage Supplier
|-
! scope="row"| 1
| SJOne Board
| +5V
| ATX Power Supply
|-
! scope="row"| 2
| NFC Module
| +3.3V
| SJOne Board
|-
! scope="row"| 3
| Actuator Submodule
| +12V
| ATX Power Supply
|-
|}

The system ranges in using three different voltages: +12V, +5V, and +3.3V. Because these voltages are standard in computer systems, the team used an ATX power supply. The ATX power supply provides a +12V, +5V, and a +3.3V output. 

All ATX power supplies has a "safe power-up" feature in which the power supply will not turn on. In order to turn on the ATX power supply, the P.ON wire must be shorted to ground.

=== Hardware Interface ===
In this section, you can describe how your hardware communicates, such as which BUSes used.  You can discuss your driver implementation here, such that the '''Software Design''' section is isolated to talk about high level workings rather than inner working of your project.

====Actuator Subsystem Interface====
[[File:CmpE146 S14 NFCLocker Actuator Submodule.jpg]]

An actuator can only extend or retract depending on the direction of the signal. With software, The team used a motor controller to change the direction of the PWM signal. Note that one PWM signal must be fully off, while the other must be fully on in order to change the signal's direction.

====NFC Interface====

[[File:CmpE146 S14 NFCLocker NFCModule.jpg]]

The NFC module can accept High Speed UART (HSU), I2C, or SPI. The team decided to use SPI due being able to operate at high speeds. Additionally, a GPIO output is used for the NFC module's chip. Like all SPI interfaces, the nCS is used to indicate the start and end of a data frame. Additionally, another GPIO is used to initially reset the NFC module.

The team also used the NFC module's interrupt pin, because the software's framework is interrupt driven. The interrupt output tells the uC what state the system is in.

====UART Micro-Controller Interface====

[[File:CmpE146 S14 NFCLocker UART.jpg]]

The master uC initiates the communication with the slave. A master uC will send data from the NFC module to the slave uC. The slave will process the data and either send a verification frame or rejection frame to the master which will enable the master to lock or unlock the locker.

=== Software Design ===
Show your software design.  For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level.  Do not show the details of the code.  For example, do not show exact code, but you may show psuedocode and fragments of code.  Keep in mind that you are showing DESIGN of your software, not the inner workings of it.

[[File:CmpE146 S14 NFCLocker SoftwareFlowchart.jpg|left]] 

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====NFC Software Design====
[[File:CmpE146 S14 NFCLocker NFCFrame.jpg]]

[[File:CmpE146 S14 NFCLocker NFCSPIFRAME.jpg]]

[[File:CmpE146 S14 NFCLocker GetData.jpg]]

====Phone Application Software Design ====

====UART Communication Software Design====

====Actuator Software Design====

=== Implementation ===
This section includes implementation, but again, not the details, just the high level.  For example, you can list the steps it takes to communicate over a sensor, or the steps needed to write a page of memory onto SPI Flash.  You can include sub-sections for each of your component implementation.

====NFC Software Implementation====

====Phone Application Software Implementation====

====UART Communication Software Implementation====

====Actuator Software Implementation====

== Testing & Technical Challenges ==
Describe the challenges of your project.  What advise would you give yourself or someone else if your project can be started from scratch again?
Make a smooth transition to testing section and described what it took to test your project.

Include sub-sections that list out a problem and solution, such as:

=== My Issue #1 ===
Discuss the issue and resolution.

== Conclusion ==
Conclude your project here.  You can recap your testing and problems.  You should address the "so what" part here to indicate what you ultimately learnt from this project.  How has this project increased your knowledge?

=== Project Video ===
Upload a video of your project and post the link here.

=== Project Source Code ===
Send me your zipped source code and I will upload this to SourceForge and link it for you.

== References ==
=== Acknowledgement ===
Any acknowledgement that you may wish to provide can be included here.

We would like to acknowledge Preetpal Kang and Dr. Haluk Özemek for giving us strength.

=== References Used ===
List any references used in project.
# [//www.nxp.com/documents/user_manual/UM10360.pdf LPC176x/5x User Manual]
# [//www.nxp.com/documents/user_manual/141520.pdf PN532 User Manual]
# [//ww1.microchip.com/downloads/en/DeviceDoc/39662c.pdf ENC28J60 Data Sheet]
# [//developer.android.com/guide/topics/connectivity/nfc/index.html Android Developers Near Field Communication API]