Introducing ElanLogger

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Re: Introducing ElanLogger

Postby tigerdog » Fri 14.07.2017, 02:24

Brilliant bit of kit! It's wonderful to see someone with the "Newbie" label by their name, immediately contributing such a cool project. Kudos for upholding the longstanding tradition of innovative engineering that brought me to LEC, oh so many years ago. :cheers:
"Refitting is the reverse sequence to removal, but you swear in different places."
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Re: Introducing ElanLogger

Postby matts1972 » Tue 18.07.2017, 20:41

Just edited and replaced the Arduino software in my original posting with version 1.1
This adds some visual indication by flashing the builtin LED of the Arduino board in one second intervals after the log file has successfully been written and closed.
Errors will flash quickly 5 times per second instead.
So while you are driving and nothing is flashing you can feel reassured that ElanLogger is still happily logging.
Cheers
Matthias

PS: to see the LED in Ken's ElanLogger box you will have to drill a hole in it.
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Re: Introducing ElanLogger

Postby lotusrepair » Tue 15.08.2017, 02:18

Has anyone offered to produce and sell these? I would buy one.
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Re: Introducing ElanLogger

Postby matts1972 » Tue 15.08.2017, 07:44

It is really an easy project to build one. An oil change on our cars is more challenging (at least for me :-D ). But of course, you have to invest a few hours to get the parts and put everything together. Also, while I love Ken's 3d printed box, it is rather costly (especially if you do not have a printer). So to build solid ElanLoggers in mass production, a few challenges remain.
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Re: Introducing ElanLogger

Postby CalElan » Wed 25.10.2017, 20:58

this is brilliant -- I have a ton of portable apple devices, but my one PC is a HUGE tower sat in the office.. this solves my problem...
Thanks Guys!
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Re: Introducing ElanLogger

Postby HJ2 » Thu 26.10.2017, 08:21

Finally a valid reason to buy me an Arduino board 8)
Super gemacht, vielen dank! :D

Let's order parts now.
Thanks for the housing as well Ken!
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Re: Introducing ElanLogger

Postby matts1972 » Sun 29.10.2017, 06:24

Would love to hear from you when you built one and how it worked out.
This will hopefully encourage more members to go for it.
Thanks for all your feedback so far.
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Re: Introducing ElanLogger

Postby HJ2 » Sun 29.10.2017, 09:19

Will do :D
I hope this will go faster than BCN's shift cable review :cry:

Edit:
Parts are now ordered, I hope that any P3 will do (as I ordered somewhere else, and that I not run into software problems!
This will be my first raspberry experience, and I am not afraid of hardware, but software.... :smt017
This will be a painfull but educational experience i guess :lol:
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Re: Introducing ElanLogger

Postby matts1972 » Sun 29.10.2017, 18:41

HJ2 wrote:Parts are now ordered, I hope that any P3 will do (as I ordered somewhere else, and that I not run into software problems!


Alert! Raspberry does not equal Arduino. While Raspberry is a micro-computer running linux, Arduino is an old fashioned micro controller.
Long story short, do not order a raspberry pi (or undo while you can).
Please get an Arduino Uno R3 (yes, any should do).
Do not get a Raspberry Pi (none will do).
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Re: Introducing ElanLogger

Postby RonR » Wed 01.11.2017, 17:52

Many thanks for coming up with this Matt,

I used a metal case meant for an Arduino Mega, which gives some room for extra circuitry and connectors at the rear. On the left is the 'Paperclip' switch.

IMG_20171101_small.jpg


A note for other builders:
I used the prototyping area on the logger board to build the ALDL interface circuit so it's hard wired to the Tx and Rx pins. However after doing this I got the error - "Avrdude Stk500_getsync(): Not in Sync Resp=0x30" when uploading the sketch - This error can sometimes appear when something is connected to the Arduino Rx pin. Unplugging the logger board allowed me to upload successfully.

A more permanent solution would be to use a dual pole power switch, the second pole could be used to connect the Rx pin when switching on the +V from the ECM. The switch can be off when connected to a PC as the Arduino is powered from the PCs USB port.

A few ideas for further development:
A small remote display providing a selection of Elanscan data every 2 seconds or so. (Display ordered - project for winter)
Powering the logger from an ignition switched source, then either:
a. Use a push button to start or stop logging.
Or b. Extract the "Engine Running" flag from the ECM data and log every journey automatically.

Cheers,
Ron
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Re: Introducing ElanLogger

Postby matts1972 » Sat 04.11.2017, 12:32

RonR wrote:A few ideas for further development:
A small remote display providing a selection of Elanscan data every 2 seconds or so. (Display ordered - project for winter)
Powering the logger from an ignition switched source, then either:
a. Use a push button to start or stop logging.
Or b. Extract the "Engine Running" flag from the ECM data and log every journey automatically.


That's the spirit :D
I also have thought about logging every journey. A 2GB sdcard is big enough for years of ownership. You would 'only' have to solve the issue of not draining too much battery power while parked.
Cheers,
Matt
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