Basic MS3 - add 5v Ref to DB37?
Hi
Is there an easy place to pick up a 5v reference signal from the Basic MS3 main board to feed it through to one of the unused DB37 pins? It'd make the wiring for some of the options a lot tidier compared to trying to pull it from the ECU connector loom and back round... I've got an external MAP sensor and a variable resistor for TC / LC adjustment that both are fed from the 5v feed but plumbed into the DB37... Might be a nice feature for future revisions of your board :) Thanks Jon |
It's already there? Pin 26.
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Originally Posted by gooflophaze
(Post 1472196)
It's already there? Pin 26.
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Ah, sorry, just noticed this was MSLabs subforum so the pin count might be different. But you've got a 5v output coming out to drive the TPS, also known as vref.
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Originally Posted by gooflophaze
(Post 1472198)
Ah, sorry, just noticed this was MSLabs subforum so the pin count might be different. But you've got a 5v output coming out to drive the TPS, also known as vref.
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Yep - I want to pull 5v ref. from somewhere to a spare pin on the MSLabs DB37.
I was just wondering if there's a 'nice' place to source the 5V from (like an unused pad on the main PCB), rather than trying to tack a wire onto the back of the ECU socket.. :) |
Please post your ECU's serial number. Different revisions and MY versions may have slightly different DB37 pinouts.
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Hi,
ECU Serial number = 12643 Thanks! Jon |
You can get 5V from pin 9 of the serial connector. You can then add a wire from pin 9 to pin 34 on the DB37, which is a free pin on this ECU version (3.0b). Other ECU versions may have this pin already in use.
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Thanks!
As said maybe something to consider for your future board revisions - makes the wiring a lot tidier :) |
The current revision does have 5V and a LOT more I/O on the DB37, among other improvements.
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Hi
Pin 34 on the DB37 is used as it's got an optional ABS sensor speed input. Also - as it's got an optional internal barometric sensor, what input is this connected to? The basemap you sent doesn't have it enabled... Thanks! Jon |
My mistake - 34 is free as you say....
Any suggestion as to which ADC the optional internal barometric sensor is connected to? Thanks! |
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