My Latest Project - Puma Re-Wire

[Scott B]

Probably not technically a hack (yet), but this is what has been keeping me busy the last few weeks... I have been re-wiring my clubman and fitting a new digital dash - with logging, G-Force measurement and GPS tracking (it does track/course mapping, lap/sector timing and all the good stuff). The indicator stalk is from a '99 laser - previously it just had a rocker switch with no auto cancel.

The very roughly cut bit of craft wood mounting the switches it just temporary (to test the ergonomics) and will be replaced later with something a bit nicer - probably fake carbon to start with followed by real carbon.

The only fault I can find with the unit so far is alarm points for each input are static, (you can set a low and high alarm point for Volts, Oil Pressure, Water Temp etc - but you can not program it so that for example, the minimum acceptable oil pressure varies with RPM and Temp), their new logger now has this feature, but it is a very expensive upgrade so I am planning on doing it myself externally with an Arduino. This will monitor all the vital signs and hopefully attempt to blind me with a big F-off light if anything is going wrong, as generally I'm too busy holding on to look at the gauges.

 

 

[Andrew Helgeson]

That looks really good!
Great work man!

Andrew

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[sighmon]

Awesome dude.
If ever you need someone to help *test* the logger, let me know. :P

On Oct 25, 10:38 pm, Andrew Helgeson <cyberte...@gmail.com> wrote:
> That looks really good!
> Great work man!
>
> Andrew
>
>
>
>
>
>
>
> On Thu, Oct 25, 2012 at 9:06 PM, Scott B <solar.sen...@gmail.com> wrote:
> > Probably not technically a hack (yet), but this is what has been keeping
> > me busy the last few weeks... I have been re-wiring my clubman and fitting
> > a new digital dash - with logging, G-Force measurement and GPS tracking (it
> > does track/course mapping, lap/sector timing and all the good stuff). The
> > indicator stalk is from a '99 laser - previously it just had a rocker
> > switch with no auto cancel.
>
> > The very roughly cut bit of craft wood mounting the switches it just
> > temporary (to test the ergonomics) and will be replaced later with
> > something a bit nicer - probably fake carbon to start with followed by real
> > carbon.
>
> > The only fault I can find with the unit so far is alarm points for each
> > input are static, (you can set a low and high alarm point for Volts, Oil
> > Pressure, Water Temp etc - but you can not program it so that for example,
> > the minimum acceptable oil pressure varies with RPM and Temp), their new
> > logger now has this feature, but it is a very expensive upgrade so I am
> > planning on doing it myself externally with an Arduino. This will monitor
> > all the vital signs and hopefully attempt to blind me with a big F-off
> > light if anything is going wrong, as generally I'm too busy holding on to
> > look at the gauges.
>

> > <https://lh6.googleusercontent.com/-UoR3tENd1K4/UIke93M186I/AAAAAAAAAB...>
>
> > <https://lh4.googleusercontent.com/-xxXeJ553xSo/UIke-WYhpZI/AAAAAAAAAB...>
>
> > <https://lh3.googleusercontent.com/-GylRR3UrzYE/UIke-9XGzYI/AAAAAAAAAB...>

[Scott B]

ballast in the passenger seat is always welcome - it helps to get the power down... I would use the wife but she screams too much.

> > hackerspace-adelaide+unsub...@googlegroups.com.

[Scott B]

Well its finally back on the road.. Jon's Printed indicator auto cancel tooth is working perfectly - though I did crack it pressing it on the steering column, a bit of silicon soon fixed that though. Now I just have to remember its there, I keep trying to turn off the switch (which doesn't exist any more) after each corner.

Still got a few day of fine tuning the dash/logger setup to go, but its basically all working.

What I could use though, if anyone has one, is a portable oscilloscope. I am finding the GPS speedo can be a bit unstable (depending on how good its lock is at the time I guess), so I want to use the original speed sensor. But I believe it is an inductive type and not directly compatible with the dash - which is expecting a nice square wave.

I doubt I'm going to be able to remove the sensor from the G-Box without removing it from the car first... so probably much easier to test the signal while on the road.

[Steven Pickles]

There is a DSO nano and a DSO quad at the hackerspace you are welcome to borrow. Takes some practice to get anything useful out of the ultra-minimal interface though.

pix

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[Scott B]

That should do the job nicely - as long as I can lock it in to DC coupling and a suitable time base - I am hoping to see a sine wave with only a coupe volts p-p and maybe up to 1kHz.

I might even bring it in Wednedsay night if anyone wants to jump in and drive the DSO from the passenger seat.

[Matt Ziebarth]

I have a QA100 USB scope your welcome to borrow. 

http://www.quantasylum.com/content/Products/QA100.aspx

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[Scott B]

have you got it set up on something portable? It will only take a lap of the block to capture the signal and work out what I am dealing with.

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[Matt Ziebarth]

I don't at the moment. But it would be pretty easy to install the software on a laptop. I can install it on my laptop and bring it around when I come to pick up the gopher bits ;-)

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[Scott B]

yeah no worries, come grab them when ever you want - though Monday & Tuesday nights I'm baby sitting so we wont be able to test the speedo.

I have done some more research, and it looks like the signal should be as I expect, so I might be able to just use my DMM on the frequency setting to see what ball park I'm in for the frequency.

[Scott B]

bought the car in to work today - I don't really want to leave it parked un-addended in the city for 3 hours, but if anyone has 10 minutes to spare and knows how to drive the DSO I can swing by format and we can have a go at looking at the signal.