Arduino Vehicle Data Logger / Black box OBD II

Built and designed as a final project for EE 495: Special Topics, Computer Eng Lab. UNLV
It has many applications such as post accident data analysis(blackbox), and vehicle performance analysis.
The main chip here is the ELM 327 which lets me communicate with the ECU using CAN, ISO, or J1850.
It also uses an ATMEGA328 with the arduino bootloader and a datalogger shield for the arduino from adafruit.
Some other parts included is the MCP2551 (CAN transceiver) and a 3 axis accelerometer.
Data is stored into an SD card for easy access to the data and further analysis
For more info on the ELM327 read the data sheet http://www.elmelectronics.com/DSheets/ELM327DS.pdf
Sorry for the mediocre video quality, I recorded everything with my moto droid.

Pls feel free to leave comments and ask questions,
Dino Tinitigan

Category:

Science & Technology

Tags:

• Arduino
• OBD
• II
• Vehicle
• Data
• Logger
• Black
• box
• ELM
• 327
• tool
• car
• performance
• race
• CAN
• AVR
• pic
• ATMEGA328
• Computer
• Electrical
• Engineering
• UNLV
• microcontroller
• programming
• C++
• DIY
• Senior
• Project

[jdubulator]

How did you write the data to the SD card? 

[bigdinotech]

@jdubulator I used the Data logging Shield from Adafruit. It well documented so I just followed their guide and made few modifications.

[phildal01]

Any idea of your program for the 328? Are you using kind of standard library like the CAN library for Arduino and let the ELM do the rest?

[pcbheaven]

Thanks for the suggestion! I did not know about the ELM chip, and i will surely use it in a future project of mine. Excellent job you've done. It will be featured in pcbheaven[.]com today.

[majorgray3]

Nice job. Thanks for sharing.

[arunneeraj]

can you tell me the detail about the program that you have written for the arduino????am searching these for weeks