canbus codes?

[anderwgray]

Dear all,
I'm looking at sending data via a canbus bluetooth connector to an android phone running a dashboard app. I'm making a standard motor controller.

How/Where do I find what serial codes to send for what data ? From my reading, it seems every manufacturer just "makes up" whatever codes they want .

I will have temperature, pressure, revs, brake on/off, current, volts etc

Regards,
Andrew.

[freebeard]

They discuss Canbus on EVTV Motor Verks - Electric Car Conversion Videos.

They appear to have addressed this in this episode: http://media3.ev-tv.me/news101014-iPhone.mp4

Originally Posted by jack Rickard

Collin Kidder in MIchigan continues to head GEVCU software development and is working on a CAN analysis tool that should make reverse engineering CAN driven devices much easier in the future. Few know or adequately appreciate the key work he did earlier developing the definitive CAN library for Arduino that allows us to do any of this at all.

All I know is what I picked up there. I've been following it because I want to add Canbus to my 1958 Beetle. It appears Canbus is a read-only channel. Devices assert an address and a data packet. Other devices listen for the address and ignore anything else.

[gone-ot]

Sorry, but CANBus is the software/harware "architecture" that OBD-II uses.

http://en.wikipedia.org/wiki/CAN_bus

I believe what you're actually asking about are the manufacturer's Parameter ID (PID) codes which identify what packets of data are being transmitted and received over the CANBus protocol:

http://en.wikipedia.org/wiki/OBD-II_PIDs