The MegaSquirt Project has experienced explosive growth other the years, with hundreds of new MS installations occurring every week - a phenomenal success! MegaSquirt has been successfully used in all aspects of Internal Combustion engine applications including R&D, Industry, Race, and Research. The MS project has transformed itself from a simple R&D project into a full-featured mature engine control system. To reflect this the support structure has also changed to meet the needs of MegaSquirt Users.
Moving forward, the R&D forums for MegaSquirt project are in a read-only mode - no new forum posts are accepted.
However the forums will remain available for view, they still contain a wealth of information on how MegaSquirt works, how it is installed and used. Feel free to search the forums for information, facts, and overview.While the R&D forum traffic has slowed in recent years, this is not at all a reflection of Megasquirt users, which continue to grow year after year. What has changed is that the method of MegaSquirt support today has rapidly moved to Facebook, this is where the vast majority of interaction is happening now. For those not on Facebook the msextra forums is another place for product support. Finally, for product selection assistance, all of the MegaSquirt vendors are there to help you select a system, along with all of the required pieces to make it complete.
Forum for discussing how to install MicroSquirt(TM), choose and troubleshoot sensors, wiring, and communications for MicroSquirt (TM) and MicroSquirt Module(TM).
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
After being a good newbie and reading for hours and hours, I decided to use a MegaSquirt II 3.57 and have been emailing DIYautotune about options etc and was just about to push the order button. I've already purchased a Megasquirt Relay Board and wiring bundle from them. (The rest of my fuel system is arriving today, I've already received my ITBs, and my injectors will be here Monday)
A couple of days ago I started reading about the MicroS and have decided that will suit my needs better because of the reduced size and the dual spark capability (I want to run 2 coils w/ wasted spark and 4 saturated injectors. I'm converting an old school 4 cyl engine with dual Dellorto DHLA carbs, distributor w/ Pertonix Ignitor, and NO electronic sensors, etc)
So if I understand correctly - the MicroSquirt Access Board does not have the relays and fuses that the Mega Relay Board has? So I'll probably want to get the Microsquirt and Access board and use the Relay Board too?
Thought I'd try this question again after reading extensively and still not quite understanding how this will work for my application. I don't have an Access Board to look at yet.
I've already purchased a Relay Board and I'm waiting for the Microsquirt and Access Board to become available. I'd like to use the Microsquirt to utilize dual spark for direct coil control for wasted spark ignition and I'd like to use the Access Board for easy setup, LEDs, MAP, DIP switches etc.
The info about the Access Board says it will slide into the same case as the Relay Board. It also says it has mounting holes in case someone wants to mount using standoff spacers. I need to use the relays and the fuses that are on the Relay Board for my application and I'd also like to have the features of the Access Board.
From looking at the Access board schematic, it appears to me that it does not have the fuses and relays that the relay board has. (I'm not an electronics technician so I may be wrong about this.) So I guess I need to use both boards? I'm wondering if I can mount the Relay Board to the Access Board somehow (in the same case or with the standoff spacers) and utilize the features of both?
It looks like putting them in the same case or mounting them one to the other with standoff spacers will cause one to interfere with access to the other. It also appears that I'll need to run the outputs from the Access Board into the appropriate inputs on the DB37 of the Relay Board - unless there is some way to solder the appropriate pins to each other between the boards?
If I'm asking questions based on misunderstanding and therefore not worthy of an answer please kindly let me know that I'm misunderstanding something, forgive me for talking to myself on the forum, and delete my posts. TIA.
As I understand it (no-one has the access board yet except Bruce), the access board does not have fuses or relays.
You could use a relay board for those functions, or wire in a the main and fuel pump relays and fuses separately (which might make for easier packaging in tight installs).
The relay board doesn't have the stand-off holes, and I believe the two boards are too tall to fit in a single case, so you would likely need separate cases.
obxer wrote:
The info about the Access Board says it will slide into the same case as the Relay Board. It also says it has mounting holes in case someone wants to mount using standoff spacers. I need to use the relays and the fuses that are on the Relay Board for my application and I'd also like to have the features of the Access Board.
Sorry - I missed this post. The access board does not have any fuses or relays, it just provides access to the microsquirt signals via terminal block. The reason for not adding the relays or fuses was simply space on the board.
You could use the access board in conjunction with the MS relay board, although these were designed for different MS types (i.e. relay board has DB-37 for megasquirt, the access board has an ampseal for the microsquirt). You would have to wire the two together. And, one case cannot hold both boards so these would have to be separate.
