Suggested auxiliary pins; and confirmed pins that don't need jumpers

[ElDominio]

Suggest aux pins: 12v 5v gnd flex see https://github.com/andreika-git/hellen-one/issues/123 boost duty output nitrous output some ground switch (so people can put a switch to do something fuel pressure 0-5v oil pressure 0-5v

all confirmed working IO ETB VVT1/2 all fuel injectors all ignition outputs cam/crank MAP1 CLT IAT

I did not check MAP2 (could be used as Baro)

[ElDominio]

to update this list:

recommend using LCSC part number C477839

Pins are as follows:

1. 5V source
2. 0-5v p1
3. 0-5v p2
4. digital input p1
5. Ground PWM p1
6. digital input p2
7. 12v source
8. 0-5v p3
9. digital input p3
10. ground pwm p2
11. ground pwm p3
12. sensor ground

can this be done for hellen121 nissan too?

[Qwerty-OFF]

@ElDominio please check (reverse numbering of contacts is a feature of the footprint).

1. DIN and AIN have customizable pullup/pulldown. 680k pulldown now, need to change this defaults?
2. DIN connected to IN_Dx of MCU trough dinput4 module
3. AIN connected to IN_CRANK, IN_CAM, IN_VSS of MCU
4. AUX_LS2 and AUX_LS3 drived by external keys (were connected to via in the previous revision)
5. AUX_LS1 combined with WGT on main connector

Where to place this connector?

[rusefillc]

@Qwerty-OFF: Norman says "Anywhere is fine"

but we have case shape considerations

maybe here?

[rusefillc]

PS: new ETB drivers can go on the back side of the PCB I guess if that would help at all?

We might get double sided inputs and outputs modules in the next few days if that would help

[ElDominio]

Are there pins available to give exclusive use to the pins I stated in the comment? (not shared with anything on main connector, only dedicated for AUX use)

[rusefillc]

See https://github.com/andreika-git/hellen-one/issues/155

[Qwerty-OFF]

recommend using LCSC part number C477839

This is right angle connector, is it possible to place it in the center of the board, and not on the edge? Should I use the same straight connector?

Are there pins available to give exclusive use to the pins I stated in the comment? (not shared with anything on main connector, only dedicated for AUX use)

AUX_LS1 connected to OUT_WGT on main connector. If need seems possible place additional MOSFET for AUX_LS1.

How much current should the AUX pins support?

[rusefillc]

let's use VND7/VND14NV04TR "DPAK-3","C155605" for outputs

[rusefillc]

Please add pull-up/pull-down instructions for all aux analog inputs on the back of the PCB

[rusefillc]

@ElDominio says to use vertical molex connector

[Qwerty-OFF]

use vertical molex connector

OK

pull-up/pull-down instructions