Difference between revisions of "F12: OBD-II Android Monitor"

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(Parts List & Cost)
(Parts List & Cost)
Line 158: Line 158:
  
 
== Parts List & Cost ==
 
== Parts List & Cost ==
:1. ELM327 Bluetooth Microcontroller [$22]
+
 
:2. Android Device [Free]
+
===Hardware===
 +
:* ELM327 Bluetooth Microcontroller [$22]
 +
:* Android Device [Free]
 +
===Software===
 +
:* Windows Vista / 7 (32 or 64-bit)
 +
:* Eclipse IDE
 +
::a) Must be 3.6.2 (Helios) or higher
 +
::b) JDT Plugin (newer IDE packages will have this plugin included)
 +
:* Android SDK
 +
:* ADT Plugin (recommended but not required)
 +
::a) 20.0.0 or higher
  
 
== Design & Implementation ==
 
== Design & Implementation ==

Revision as of 16:50, 6 November 2012

OBD-II Android Monitor

Abstract

Interfacing an ELM Electronics ELM327 OBD-II to RS232 interpreter to an Android mobile device. The Android mobile device connects to the interpreter via Bluetooth and gathers information through a designed application. The designed application will be able to gather real time information from the vehicle such as RPM, MPH, and intake temperature. The designed application will also be able to clear diagnostic trouble codes.

Features & Objectives

The OBD-II Android Monitor project establishes a wireless Bluetooth communication link between an Android mobile device and an automobile’s On-Board Diagnostics system (OBD). Information is transmitted between these components using an ELM Electronics ELM327 microcontroller. The ELM327 converts data from OBD-II protocols to RS-232, emulating the Bluetooth communication to run in serial port profile (SPP). To interface an Android device with the ELM327, an application will be designed. This application will have a graphical user interface (GUI) which will be able to display vehicle information such as MPH and RPM. The objectives for the OBD-II Android Monitor project is shown below.

  • Establish communication with vehicle on board diagnostics computer with Android device
  • Design and create Android Application with features of:
a) Gather real time vehicle engine information such as Intake temperature, Engine coolant temperature, MPH, RPM, MPG, etc.
b) Read and clear check engine lights (CEL)


Team Members

  • Ryan James Cristobal
  • Jonathan Luong

Roles & Responsibilities

Schedule

Week Number Date Tasks Tasks Completed

1

10/20 - 10/26

  • Gather and order parts
  • Install Android SDK and tools
  • Review component data sheets
  • Parts ordered on 10/25
  • Installed SDK on Eclipse and ADT (Android Emulator)
  • Obtained PDF of OBD-II datasheet

2

10/27 - 11/2

  • Gather and test components
  • Establish Android app requirements
  • Begin Android app design
  • ELM327 Controller Obtained, and tested.
  • User Interface Requirements Established
-ELM327 will use SPP to communicate between OBD-II and Android device
  • Android App functions:
-One screen to display data parameters
-Displayed data will be refreshed in real-time

3

11/3 - 11/9

  • Finalize Android app design
  • Begin Android app implementation
  • ____
  • ____
  • ____

4

11/10 - 11/16

  • Establish communication link between OBD-II and Android phone
  • Develop UI design
  • ____
  • ____
  • ____

5

11/17 - 11/23

  • Continue UI design
  • Prepare system testing
  • ____
  • ____
  • ____

6

11/24 - 11/30

  • Begin system testing
  • Begin finalizing project report
  • ____
  • ____
  • ____

7

12/1 - 12/7

  • Finish project report
  • Finish system testing
  • Demo project
  • ____
  • ____
  • ____

Parts List & Cost

Hardware

  • ELM327 Bluetooth Microcontroller [$22]
  • Android Device [Free]

Software

  • Windows Vista / 7 (32 or 64-bit)
  • Eclipse IDE
a) Must be 3.6.2 (Helios) or higher
b) JDT Plugin (newer IDE packages will have this plugin included)
  • Android SDK
  • ADT Plugin (recommended but not required)
a) 20.0.0 or higher

Design & Implementation

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Hardware Design

Discuss your hardware design here. Show detailed schematics, and the interface 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

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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

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Wifi Connection Issues

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Conclusion

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Project Video

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Project Source Code

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References

Acknowledgement

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References Used

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Appendix

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