Datalogging RPM signal

Stephen Andersen SAndersen at advan-tek.com
Mon Dec 10 03:05:26 GMT 2001


Thanks for the pointer.  I am actually thinking about buying
the USB logger board ($99) which has a built-in 32bit counter.
I can snag the rpm signal to the DME in my car and multiply it 
by 20 to get rpm (So I'm told).  I think with the 8 single
ended inputs I can record enough (including the WB) for some
decent tuning data...

Not exactly DIY though!!!

Thanks,
Steve

> -----Original Message-----
> From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> Behalf Of Don DRI05 Ricciardiello
> Subject: Re: Datalogging RPM signal
> 
> I have two words of advice and they are "Brian Dessent". He 
> was a great
> help as I had the exact same question for the DataQ DI-194 
> I'm using. I
> have a variable reluctance magnetic pick-up sensing crank 
> rotationon on my
> bike. Brian suggested using the LM2917 Frequency to voltage 
> converters. I'm
> bread-boarding mine at the moment to test it out.
> 
> Don
> 
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