MSefi.com read only forum (Jan.15,2018)

Thanks Jerry,

I don't know how many times I looked at that page without seeing the circuit diagram down the bottom. Should be all go now.

Cheers,
Daniel.

Naturally I think I just found the circuit I am after here:

http://megasquirt.sourceforge.net/extra/waterinj.html

First things first.
MS1 on V3.0 board running MSnS-e (Version yet to be decided)

I am simply after some clarification/reassurance on the mod's required on the board to use the LED circuits to drive an external relay. I have spent hours searching posts and the Megasquirt websites and have ended up ...

There are quite a few distributors with optical sensors in them. I personally prefer them.
An optical sensor isn't really suitable for out in the open as they will fail/false trigger with dirt etc. floating around. I think Hall effect sensors give a similar signal to an optical sensor, and aren't ...