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  #1  
Old 12th June 2011, 10:45 AM
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So what do you use for the CAN interface?

TT
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Old 12th June 2011, 11:45 AM
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Thanks guys. To be honest my job often involves playing around with CAN busses, so this is bread and butter stuff for me

TT - this is the CAN interface I'm using.
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Old 12th June 2011, 02:56 PM
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Genius!
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Old 12th June 2011, 03:01 PM
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Thought about changing my clocks too but sort of stopped when I realised you needed warning about break fluid, engine temp, oil pressure, and the ecu has a speed sensor which is in the clocks from the manual speedo I think. How do you get round all that!
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Old 12th June 2011, 04:00 PM
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Quote:
Originally Posted by CTWV50 View Post
Thought about changing my clocks too but sort of stopped when I realised you needed warning about break fluid, engine temp, oil pressure, and the ecu has a speed sensor which is in the clocks from the manual speedo I think. How do you get round all that!
Yeah, the Mk1 speedo is driven by a cable, and the speed pulse for the ECU is generated in the clocks.
Not a huge problem though as you can replace the cable with a Mk2 vehicle speed sensor.
The fluid level sensor is just a switch in parrallel with the handbrake switch, so that's easy enough.
I' not sure what you could do about oil pressure and engine temp. If you're lucky the levels might be compatible with aftermarket gauges. I plan to monitor them and light up one of the lamps in my cluster if they go out of normal operating range (or hopefully display their values on the cluster LCD if I can work out how to talk to it).
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Old 12th June 2011, 03:44 PM
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Quote:
Originally Posted by skov View Post
Thanks guys. To be honest my job often involves playing around with CAN busses, so this is bread and butter stuff for me

TT - this is the CAN interface I'm using.
Please excuse my ignorance but what are "can busses" I immediately thought of double decker buses and "blakey"...
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  #7  
Old 12th June 2011, 03:50 PM
Andy_B Andy_B is offline
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its a doofer that allows devices to comunicate to each other without a "host" computer....if i remember back to my college Mechatronics course !!
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  #8  
Old 12th June 2011, 04:08 PM
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Modern cars use a network interface to talk to different parts of the cars computer controlled system. I'm sure skov has a better explanation!

edit:

So if you can fiddle the clocks you maybe able to get the warnings from it, like for handbrake, fluid, oil, temp etc?

Last edited by CTWV50 : 12th June 2011 at 04:11 PM.
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Old 12th June 2011, 04:31 PM
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CAN "Controler Area Network"

Is a way to simplify wiring.

If you think of it in it's most most basic terms, imagine the sierra wiring with tones of wires all over the place goign to lights, door locks, clox, engine management, stereo, etc..

Now..

replace that with 3 wires. Data send, Data receive, +12V .. Add a localized ground and all your big wire bundles disapear.

You have lots of intelligent localized controllers that listen for signals relating to them. They then process the signal and do what they are required with much shorter local wiring.

TT
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  #10  
Old 12th June 2011, 05:21 PM
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Yep what he said

I'd been struggling to think of how to explain it simply!
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