Difference between revisions of "F12: OBD-II Android Monitor"
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===Hardware=== | ===Hardware=== | ||
:* ELM327 Bluetooth Microcontroller [$22] | :* ELM327 Bluetooth Microcontroller [$22] | ||
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===Software=== | ===Software=== | ||
:* Windows Vista / 7 (32 or 64-bit) | :* Windows Vista / 7 (32 or 64-bit) |
Revision as of 02:30, 8 November 2012
Contents
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 |
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1 |
10/20 - 10/26 |
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2 |
10/27 - 11/2 |
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3 |
11/3 - 11/9 |
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4 |
11/10 - 11/16 |
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5 |
11/17 - 11/23 |
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6 |
11/24 - 11/30 |
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7 |
12/1 - 12/7 |
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Parts List & Cost
Hardware
- ELM327 Bluetooth Microcontroller [$22]
- Android Device (Android 2.2 or higher)
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
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Testing & Technical Challenges
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Wifi Connection Issues
Many wifi connection issues were encountered. To solve this problem, a dedicated task was created to re-connect to wifi if the connection was ever lost.
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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