reading a Knock Sensor

[spidy]

You should 'definitely' use a LED, I used bc548 no probs

----- Original Message -----
From: "Ross Myers" <ponty at axis.jeack.com.au>
To: <gmecm at diy-efi.org>
Sent: Thursday, 12 October 2000 18:08
Subject: Re: reading a Knock Sensor


>
> -----Original Message-----
> From: spidy <spidy at picknowl.com.au>
> To: gmecm at diy-efi.org <gmecm at diy-efi.org>
> Date: Thursday, October 12, 2000 2:36 PM
> Subject: Re: reading a Knock Sensor
>
>
> >If you can cut the knock board off of an old memcal you can use it to
drive
> >a LED instead of feeding the CPU a digital sig.
>
>
> Checkout a picture on DIY_FTP called "knock.jpg or knock_filter.jpg" (I
> think), I posted that there a while back, anyway, I measured the various
> voltages on the pins and you will notice the O/P to indicate knock is
> actually a 0 - 8V signal, not 0 - 5V, you 'probably' should drive an LED
> from this point via a transistor not directly.
>
> Ross Myers
>
> --------------------------------------------------------------------------
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