S16: SmartDoorLock

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Revision as of 05:14, 24 May 2016 by Proj user15 (talk | contribs) (Electric Door Strike Circuit)

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Grading Criteria

  • 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.

SmartDoorLock

Abstract

The frustration when you forget or lose the keys to your door is a common experience. SmartDoorLock provides a mechanism to lock and unlock your door with just your mobile phone, using bluetooth communication. The door also opens automatically when it senses an object approaching from the inside. An additional feature in the project is that a display near the entrance informs you about the weather outside, and gives friendly suggestions accordingly.

Objectives & Introduction

  • Communication between Bluetooth Module and Android app
  • Locking and unlocking electric strike via Bluetooth with password protection.
  • Detecting motion using PIR motion sensor.
  • Automatic unlocking the door based on motion detection.
  • Reading temperature and displaying suggestions.


Team Members

  • Arpita Ramanath
  • Sravani Aitha

Responsibilties

  • Circuit design for Electric door strike
  • Establishing Bluetooth communication between SJone Board and Android app using Uart.
  • Building power circuits for PIR motion sensor, LCD and Electric door strike
  • Interfacing LCD module with SJone Board using Uart.
  • Overall Circuit Integration and Testing.

Schedule

Week# Date Task Status
1 4/26/2016
  • Deciding on the project topic, deciding on hardware requirements.
  • Planning schedule
Done
2 4/26/2016
  • Ordering the components.
  • Understanding basic working of components.
Done
3 5/03/2016
  • Interface PIR sensor with SJone Board.
  • Verify functionality of the sensor.
Done
4 5/06/2016
  • Interface LCD.
  • Gather data from temperature sensor and display messages accordingly.
Done
5 5/10/2016
  • Design circuit for Electric Door Strike.
  • Test Electric Door strike functionality.
Done
6 5/13/2016
  • Interface Bluetooth module with SJone board.
  • Interface Bluetooth module with Android app.
  • Verify communication between Bluetooth module and Android app.
Done
7 5/17/2016
  • Integrate all modules.
  • Test system functionality.
  • Update Wiki
Done
8 5/20/2016
  • Testing and fixing issues.
  • Complete Wiki Report
In progress

Parts List & Cost

Parts Cost*

PIR Motion sensor

$13.87

Electric Door Strike

$24.22

LCD

$10.99

BTBee Pro Bluetooth Xbee wireless Module

$14.99

SJ-One Board

$80 x 2

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.

System Schematic

//put diagram here


Hardware Design

Electric Door Strike Circuit

The door strike being used in this project is of the type "fail-secure". This means that when there is no power being supplied to the strike, it remains locked. When a DC power supply of 12V is given, the strike unlocks, which can be detected by the characteristic clicking sound it makes. The 3.3V supplied by our SJOne board is not sufficient for operation of the strike, which needs 12V. Hence, we designed a power supply circuit to supply the strike with 12V. The circuit consists of a 12V supply, a 15V to 12V voltage regulator and a couple of capacitors.

// Put circuit diagram here


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.

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.

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.

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

References

Acknowledgement

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

References Used

List any references used in project.

Appendix

You can list the references you used.