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Read data from CAN-Bus using ELM327

obd can elm327

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#1 nhale

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Posted 23 March 2014 - 10:20 AM

Hi,

 

I bought a Sparkfun OBD-UART II board and I'm able to read data from the OBD interface.

Now I need some additional data from the CAN-Bus which is not accessible via an OBD code.

 

Regarding to the spec of the ELM327 there are some commands related to CAN, but I don't really get the idea of how to read a value for a specific CAN-Id...

 

Maybe someone already did something in this direction and may help me out how to do this.

For example I found this site with a CAN-Id and the description how the value is formatted:

http://www.loopybunn...PC/can/0CE.html

 

I found some topics regarding some "MCPC2515" but I think that's different to the ELM327, or is the procedure the same (when leaving out that one works with SPI and the other UART)

 

Thanks in advance



#2 buddy1313

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Posted 01 April 2014 - 11:19 AM

Have you seen the OBDuino project? Here's a link to the hardware interface part of it.

 

https://code.google....BDuinoInterface



#3 nhale

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Posted 03 April 2014 - 09:24 AM

Hi,

 

thanks for the hint, I will take a look once my Buffer overflow problems are solved ;-(






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