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.
A forum for discussing applications and implementations of the MegaShift transmission controller code for the GPIO from B&G. This can control up to 8-speeds and 6 shift solenoids (plus a 16x9 table for controlling a PWM line pressure valve). It has manual and fully automatic modes (16x9 load x speed table), with under and over rev-limit protection, and full data logging of all inputs and outputs (among many other abilities). A TransStim to test your completed board is also available.
tjabo wrote:Any more thoughts on this "multiplexing the shifter inputs(s) idea? Assuming there even are enough inputs for the 41te shifter, it would be nice to save them for other things like this. . . .
More thoughts? It's a done deal, it WILL be done like this, it WILL work. At least on my car.. If someone else wants to waste 3 more very valuable CPU pins... I suppose I could wire up my transmission in a temporary way, on the floor, and at least prove the concept..
I mean I can wire the GPIO to the transmission, on the floor, and run the shift lever through the gears, to see it in action.. I can also spin the input shaft and monitor the turbine speed sensor.. Check the temp sensor(s)... etc..
Fired up the trans for the first time yesterday, without the GPIO connected to it. Confirmed that forward and backwards work. I'm getting the pinout for the trans from a friend later today (so I'll update my 41te WIKI with that info). So it won't be long now..
I was daydreaming about this all day at work today.. I've got an aftermarket steering wheel with horn buttons under each thumb, those will be used for my paddle shifters, along with the floppy shifter I have, I'll be able to do either or, depending on my mood. This steering wheel has a normal horn button in the center.. What I want to do is multiplex the single horn wire, and have the GPIO trigger the horn relay when it's the horn button I'm pressing.. Cool, huh? I love multiplexing..
tjabo wrote:Cool for sure! I want to see this multi-plexing stuff work!
If your wife's minivan has cruise control or steering wheel controls for the radio, those are multiplexed circuits. It is a Chrysler or Dodge, isn't it?