Nothing between the "output" pin of the sensor
and the IC. Could be a pull up inside the IC, don't know.
Nice sharp pulses.
Jan-Erik.

Dwayne Reid wrote:
>Is there a capacitor connected from that signal pin to ground (or Vdd?)  If
>you disconnect the signal lead from the processor, are there pulses on the
>sensor line or the processor line?
>
>I'm thinking that the processor is outputting pulses and the sensor is
>modulating them in some way.  An RCtime type measurement comes to mind.

dwayne

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