Normally Open and Normally Closed on inputs

[shaodome]

Right now the inputs on the 3x board use a ground trigger for things like Datalog starting, launch control, table switch etc. For typical inputs that work on a mounted on/off switch, this works great, but for launch control using an oem clutch switch they don't always go closed when you push the clutch down. Many OEM cars go open instead.

Since we now have a VSS input for launch control (thanks guys) we don't have to worry so much if the switch fails. Is it possible to change the code to allow for the launch control to work in either normally open or normally closed modes? AEM does this with a lot of success. It would just save time on installs of having to use a relay to invert the signal.

Thoughts?

[jsmcortina]

My reasoning for leaving that out is to simplify settings where possible. Plus, those inputs are all electrically pulled up to 12V so they require a ground switching signal.
"Nitrous in" is the same circuit but the pullup can be omitted (and should be.) The code is written to expect this as an active 12V (or 5V) input.

James

[shaodome]

My reasoning for leaving that out is to simplify settings where possible. Plus, those inputs are all electrically pulled up to 12V so they require a ground switching signal.
"Nitrous in" is the same circuit but the pullup can be omitted (and should be.) The code is written to expect this as an active 12V (or 5V) input.

James

does that mean I can use the nitrous input for those clutch switches that are normally closed?

[jsmcortina]

does that mean I can use the nitrous input for those clutch switches that are normally closed?

Yes.

James

[shaodome]

My reasoning for leaving that out is to simplify settings where possible. Plus, those inputs are all electrically pulled up to 12V so they require a ground switching signal.
"Nitrous in" is the same circuit but the pullup can be omitted (and should be.) The code is written to expect this as an active 12V (or 5V) input.

James

This doesn't appear to be the case for the MS3Pro though? There is no jumpers that I know of for that circuit and using the software switch in the advanced menu to turn the pullup (down?) off didn't work as expected either.