[TenTec] Optical Encoder operation

[David McClafferty]

Hi Mark, There are two sensors looking at the slots in
the disc. The software looks at both and determines
the direction by which one it sees first.

73, Dave, VE1ADH

--- Mark Erbaugh <mark at microenh.com> wrote:
> I believe I understand the basic operation of an
> optical encoder, such as the 302. As you turn the
> knob, a series of holes on a plate connected to the
> shaft generate a series of pulses which the Pegasus
> software counts and convert into a value indicating
> movement.  My question is how does the Pegasus
> determine which way (CW or CCW) the knob is being
> turned?
> 
> Mark
> 
> 
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