My open source Wideband Controller, SLC Free

Free and Open Source Engine Management discussions excluding more specific things on this board.
User avatar
Fred
Moderator
Posts: 15431
Joined: Tue Jan 15, 2008 2:31 pm
Location: Home sweet home!
Contact:

Re: My open source Wideband Controller, SLC Free

Post by Fred »

flat4power wrote:just a question, is it compatible with E85?
Yes, of course :-)
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
User avatar
flat4power
LQFP112 - Up with the play
Posts: 100
Joined: Mon Sep 24, 2012 8:19 am
Location: France

Re: My open source Wideband Controller, SLC Free

Post by flat4power »

good for me
because I would use E85 for my engine
Tsanten
TO92 - Vaguely active
Posts: 2
Joined: Wed Jul 03, 2013 10:33 pm

Re: My open source Wideband Controller, SLC Free

Post by Tsanten »

What change will take for a lsu 4.2 ?
Tsanten
TO92 - Vaguely active
Posts: 2
Joined: Wed Jul 03, 2013 10:33 pm

Re: My open source Wideband Controller, SLC Free

Post by Tsanten »

This could work with a lsu 4.2 ?
I saw that the pcb has R7 to deal with but the software can ?
toalan
Wideband Wizard
Posts: 241
Joined: Tue Jun 10, 2008 2:53 am
Location: Toronto Canada
Contact:

Re: My open source Wideband Controller, SLC Free

Post by toalan »

Finally got around to finishing this up, everything is now done and tested. I will put up a new git repository with the completed files later this week.

I am going to offer 3 different kits:

SLC Free A: open source, LSU 4.9 sensor only, LCD displays lambda and sensor temperature as bargraph, $35 USD
SLC Free B: closed source, LSU 4.9 sensor only, LCD displays lambda and sensor temperature as numeric text, $45 USD
SLC Free C: closed source, LSU 4.2 sensor only, LCD displays lambda and sensor temperature as numeric text, $45 USD
User avatar
Hentai
LQFP144 - On Top Of The Game
Posts: 302
Joined: Sun Jul 18, 2010 2:35 pm

Re: My open source Wideband Controller, SLC Free

Post by Hentai »

I take it the baragraph doesn't tell you anything but how far its from one side of the range to another vs the numerica text saying what its current temp is?
DonTZ125
QFP80 - Contributor
Posts: 57
Joined: Tue Feb 12, 2013 5:43 am
Location: Scarborough, ON
Contact:

Re: My open source Wideband Controller, SLC Free

Post by DonTZ125 »

Will the SLC-Free be able to use I2C?

What is the accuracy difference between the SLC-OEM and SLC-Free?
toalan
Wideband Wizard
Posts: 241
Joined: Tue Jun 10, 2008 2:53 am
Location: Toronto Canada
Contact:

Re: My open source Wideband Controller, SLC Free

Post by toalan »

Hentai wrote:I take it the baragraph doesn't tell you anything but how far its from one side of the range to another vs the numerica text saying what its current temp is?
The bargraph is actually pretty decent, there are 80 columns so and each column represent 0.01 lambda increments. What I will try to do is make a paper template that you can cut out and paste onto the display PCB which will give you visual cues on where along the column represents what lambda value.
toalan
Wideband Wizard
Posts: 241
Joined: Tue Jun 10, 2008 2:53 am
Location: Toronto Canada
Contact:

Re: My open source Wideband Controller, SLC Free

Post by toalan »

DonTZ125 wrote:Will the SLC-Free be able to use I2C?

What is the accuracy difference between the SLC-OEM and SLC-Free?
I do not do any calibration on the unit, so SLC Free is at the mercy of component tolerances and the analog system on the PSOC uC. For SLC OEM, all units go through quality control, and I do some calibration on them before they ship out, so I am 100% confident that it is 0.01 lambda accurate. For SLC Free I have built about a dozen of them over the course of development, and 70% is 0.01 lambda accurate, the other 30% is in the 0.02 lambada accurate range.

I2C is not supported by SLC Free
pishta
LQFP112 - Up with the play
Posts: 147
Joined: Wed Aug 28, 2013 6:07 am

Re: My open source Wideband Controller, SLC Free

Post by pishta »

Put me down for a B/C kit, whats the difference? Where do I send the money? very Cool.
Post Reply