Bean Bandits Levin 'Globetrotter'

[Bean]

Did a slightly more elaborated write up on msextra regarding adding bluetooth to DIYPNP or a Microsquirt module in general. This solutions avoids using a converter to return the original TTL signals from the processor that have been converted to use with the RS323 back to TTL for the Bluetooth dongle. This adds to these previous posts of mine.

(06-12-2014 11:02 AM)Bean Bandit Wrote:  Tiny update, as I still haven't found a garage to do proper work on my car, I dug out my DIYPNP from the boxes.
Got the Bluetooth dongle installed and working. Also fitted a small switch to the casing so I can turn it of when connecting by cable or not in use.
No stim attached or any sensors apart from air temperature. And yes it is that hot in my office.

On my next trip to Switzerland I'll bring back some wiring and start with the custom harness.

Next update will be part pictures and suspension install, after more than a month the first parcel turned up (I despise local customs office and bureaucracy).
Thanks again Dan for your help!



Sent from my Nexus 4 using Tapatalk

(06-12-2014 03:58 PM)Ivan141 Wrote:  That just a straight serial to bluetooth adapter? Nifty...

my post on msextra forum Wrote:

mattheripper Wrote:

Bean Bandit Wrote:If you have a Microsquirt module you can tap into the TTL signals on there. It's a bit fiddly but worked for me. The two pins on the chip are broken out about a third inch away (don't have the schematics at hand nor remember the pins by heart).
I also installed a switch to cut the power to the Bluetooth module, although as long as I didn't connect through both ways simultaneously there was no errors.

Is it easy to spot the U6 when I open the case up again? Or could you look at these schematics and highlight where it is for me?
http://www.msextra.com/doc/ms2extra/module.html

It's not from U6 but pin 38&39 of the CPU. I'll take a better picture later and post it here.

In addition to your link here the CPU schematic http://www.msextra.com/doc/general/micro...chems.html
On this picture http://www.diyautotune.com/catalog/image...2.2_lg.jpg you can see U5 (read the PS below) in the top right and both injector drivers next to the 10 pin header on mid left. Also visible the two traces breaking out pin 38 and 39 on the CPU.


click for bigger version
Yellow cable goes from PS1/TXD on the microsquirt to RX on the Bluetooth side.

PS: BTW U6 (and U7) on the Microsquirt module are the injector drivers. The TTL to RS323 converter is U5 and located in the corner at the beginning of the 50 pin breakout pins and also has it's own GND, +5V and Tx,Rx breakout pins next to it (these Tx,Rx breakout points are after being processed by U5 - on a non DIYPNP board the DB9 connector would be attached there).

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More news, finally dropped off the car at my friends place to get the fenders fixed. This hopefully will be done within a week or two. Here some pictures to be to have a before and after comparison of fenders and ride height. Here goes:

05/2009 HTS dampers fitted for sure but not sure if I already had the APEX springs then or still original - must have been really busy as I couldn't find a single pic of the installation or a receipt.

fast forward 07/2014, new Shockworks Coilovers and wheels - just before fender works starts


and here two pictures of the new stance in the back before it'll be all covered up