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Search: Posts Made By: Dare
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04-20-2019, 12:53 AM
Replies: 129
Views: 9,777
Posted By Dare

Man, I wish I could go. But I gotta work straight...

Man, I wish I could go. But I gotta work straight through the weekend.

Enjoy your drive!
04-06-2019, 02:33 PM
Replies: 129
Views: 9,777
Posted By Dare

That works better for me.

That works better for me.
04-05-2019, 01:16 PM
Replies: 21
Views: 1,189
Posted By Dare

Ha! Yep, that's my life! My thinking is that...

Ha! Yep, that's my life!

My thinking is that the code paths in the uC would be entirely deterministic and fixed cycle count. Basically a bare-metal interrupt handler with a small, carefully cycle...
04-05-2019, 12:26 AM
Replies: 21
Views: 1,189
Posted By Dare

What about this MAX9926 chip? Is it not up to the...

What about this MAX9926 chip? Is it not up to the task of reading these signals?

I've been thinking that if I can find a reliable circuit to digitize the signals, it should be possible to convert...
04-03-2019, 01:19 AM
Replies: 10
Views: 806
Posted By Dare

Hey Michael, Along the lines of Dwizle's...

Hey Michael,

Along the lines of Dwizle's question, what would you say are the important features of the MS3Pro vs. the MicroSquirt for your 951 application?

For my fairly modest design, the...
04-03-2019, 01:11 AM
Replies: 19
Views: 1,943
Posted By Dare

Preliminary PCB

I’m almost certainly getting ahead of myself, but I couldn’t resist pushing the button to order a few PCBs based on my preliminary layout.

I can already tell there’s one thing wrong. But what the...
03-24-2019, 11:53 PM
Replies: 279
Views: 14,793
Posted By Dare

Great video, Tom. So it seems like a good sanity...

Great video, Tom. So it seems like a good sanity check for new sensors is to use an ohmmeter to verify no connection between the metal body of the sensor and pins 1 and 2 on the connector.
03-24-2019, 01:32 PM
Replies: 19
Views: 1,943
Posted By Dare

Preliminary PCB Layout

I thought I’d update this thread with a peek at the PCB layout I’ve been working on. This is still quite preliminary. But I’ve managed to incorporate most of the features I wanted, including a...
03-23-2019, 06:13 PM
Replies: 31
Views: 5,659
Posted By Dare

Very interesting. What's the reason for going...

Very interesting. What's the reason for going with an external Bluetooth adapter, rather than incorporating one onto the OBD Module board (and presumably routing an antenna through the case)?
03-20-2019, 12:39 AM
Replies: 6
Views: 527
Posted By Dare

Cool test, Tom! Did you spin the flywheel by...

Cool test, Tom! Did you spin the flywheel by hand, or is there some sort of motor under there?

The next questions that come to mind: Is there any difference with the bell housing in place? What...
03-18-2019, 11:42 AM
Replies: 19
Views: 1,943
Posted By Dare

Correction and status

As I hate spreading misinformation, I want to correct a small misstatement I made earlier regarding the capabilities of the MicroSquirt FIDLE output. Previously I said that the FIDLE circuit built in...
03-15-2019, 01:13 AM
Replies: 19
Views: 1,943
Posted By Dare

A few thoughts... 1) You don't need the...

A few thoughts...

1) You don't need the transistor if you're using a Microsquirt. The Microsquirt Hardware Manual states that the max current for the FIDLE output is 3A. My measurement of the coil...
03-14-2019, 01:29 AM
Replies: 19
Views: 1,943
Posted By Dare

Here's a schematic showing the entire ICV...

Here's a schematic showing the entire ICV circuit:

https://cimg2.ibsrv.net/gimg/rennlist.com-vbulletin/667x319/80-3_pin_icv_driver_circuit_fd3d8822e31dd107b06f50c58c4a6763a4caa9fd.png


Note...
03-10-2019, 09:26 PM
Replies: 19
Views: 1,943
Posted By Dare

Some progress on wiring

Made a little bit of progress over the weekend wiring up the new ECU. All the major power and ground circuits are wired, as are the drivers for the ignition and ICV. I mounted a blade-style mini fuse...
03-05-2019, 10:46 PM
Replies: 19
Views: 1,943
Posted By Dare

Thanks, Michael! Although to be fair, I have...

Thanks, Michael! Although to be fair, I have exactly *zero* experience tuning engines. So I'll probably need to lean on your help, and the help of others, to dial things in.
03-05-2019, 09:53 PM
Replies: 19
Views: 1,943
Posted By Dare

Testing the ICV Driver

I had a chance to test the idle control valve driver circuit today using the MicroSquirt module. I was able to confirm that the FIDLE output on the MS is capable of directly driving one of the coils,...
03-05-2019, 12:57 AM
Replies: 26
Views: 2,985
Posted By Dare

Good progress. Will you be able to mount the...

Good progress. Will you be able to mount the transistor on one of those side flanges on the case?
03-03-2019, 07:39 PM
Replies: 19
Views: 1,943
Posted By Dare

Main Board Schematic

Today’s update: Main Board Schematic

Since my hope is to eventually produce a PCB for my ECU, I spent some time drawing up a proper schematic for the main board. The schematic is largely derived...
02-16-2019, 03:30 PM
Replies: 19
Views: 1,943
Posted By Dare

ECU Connector Wiring

ECU Connector Wiring

Next order of business is figuring out how each of the pins on the ECU connector will be wired. Ideally, most will retain their original purpose, requiring no changes to the...
02-15-2019, 01:53 AM
Replies: 19
Views: 1,943
Posted By Dare

MS/951 – Physical Construction

Physical Construction

In many ways the physical construction of an ECU centers around the harness connection. This is especially true in this case given that I have opted retain the 35-pin...
02-15-2019, 01:30 AM
Replies: 19
Views: 1,943
Posted By Dare

Post MS/951 – Another Standalone Build

Inspired by odonnell’s latest project (https://rennlist.com/forums/924-931-944-951-968-forum/1122036-documenting-a-budget-diy-plug-n-play-standalone.html), and the generous contributions from...
Replies: 5
Views: 326
Posted By Dare

Testing indentionHereThereHereOver here

Testing indentionHereThereHereOver here
Replies: 5
Views: 326
Posted By Dare

Testing bullets Bang! Bang! Bang! ...

Testing bullets

Bang!
Bang!
Bang!

Ba-bang!
Ba-bang!

Bang!
02-11-2019, 10:11 PM
Replies: 19
Views: 1,298
Posted By Dare

Welcome! Looks like a great car!

Welcome! Looks like a great car!
02-06-2019, 02:10 AM
Replies: 12
Views: 424
Posted By Dare

Whoa Tom! Your split personality is showing! :-) ...

Whoa Tom! Your split personality is showing! :-)

Do the early DMEs contain the S100 chip? If so, I just gutted one and you're welcome to have the board.
Showing results 1 to 25 of 339
 


 
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