[Diy_efi] coil (-) tach signal conditioning

[Tomas Sokorai Sch.]

On Tuesday 04 March 2003 09:02, Dennis Noordsij wrote:
> Hey cool!
>
> I am using the 877 for an EFI controller. Very similar to Megasquirt, but
> with the benefit of hindsight :-) and of course a based around a PIC
> instead. And yes Linux based tuning software of course!

I'm using the serial bootloader from Microchip's Appnotes, and developed a  
KDE program to upload/download from the PIC's Flash, in case you're 
interested.

>
> I found a different circuit for the Tach input, which you can see at
> http://www.bubblesoftonline.com/projects/points.html
>

Thanks.... I already fried a PIC, so I guess that between this circuit and the 
PIC, I'll place a 4n26 for added safety when I playing with it.

>
> If you do try it, please do let me know how it turns out! I only intend to
> use it with electronic ignitions, not points.

Me too. Development is being done with an electronic ignition, but it would be 
nice to support points too.

Sincerely,


Tomas


-- 
Tomas J. Sokorai Sch.
Socio director, Gerente Proyectos Especiales
Xperts Ltda. F: 63 244591, Valdivia, Chile

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