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posted in Howto read more

With a ELM327 you can make polling CAN devices, if you know ID.
See AT command in ELM327 manual, how to work with CAN BUS. I dont remember all commands, but I polled the CAN devices according to OBD.

posted in Howto read more

Hi, in my Skoda Octavia OBD-connector connected to gateway and I cant sniff CAN BUS with OBD II, so I connected to CAN BUS in door.
But now, when I know CAN IDs, I can send CAN commands and receive answers with OBD II. СAN BUS Data is transmitted to OBD II only on request.

posted in Howto read more

Hi guys! In the past three years as a hobby I'm trying to identify the codes of devices and their meanings.
My car: Skoda Octavia II FL 2011 with VAG CAN BUS.
I made a shield for the Raspberry Pi according to the scheme http://lnxpps.de/rpie/.
<img src="https://dl.dropboxusercontent.com/u/25895838/IMG_4220.JPG" />

I connected to the CAN BUS at door. I think this line is connected only to the comfort bus (may be I'm wrong):
<img src="https://dl.dropboxusercontent.com/u/25895838/IMG_4191.JPG" />

To communicate with CAN BUS I use <a href="https://gitorious.org/linux-can/can-utils">can-utils</a>.
All perfectly work, I can control my windows with commands such as:
cansend can0 181#0200 // Open the driver window fully
cansend can0 181#0800 // Close the driver window fully

For OSX and iOS I wrote a app that displays a data in real time for devices in the individual cells:
<img src="https://dl.dropboxusercontent.com/u/25895838/canbussniffer.png" />

Using this app, I found some CAN devices:
181 - Control/Read status of Windows
381 - Read status of front left Door (open/close)
470 - Read status of front right Door (open/close)
291 - Read status of back right&left Doors (open/close)
531 - Control/Read status of Lights&Winking
5D1 - Read status of Windshield
591 - Read status of CentralLock
67A - Reverse gear engaged

Many IDs I can't define, If someone can help with finding IDs, I'll be glad!
I wan't to found a speed, rpm, distance, parking distance, fuel consumption
and other IDs.


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