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Re: Jog Dial - where can I buy ?


  • To: ukha_d@xxxxxxx
  • Subject: Re: Jog Dial - where can I buy ?
  • From: "Patrick Lidstone" <patrick@xxxxxxx>
  • Date: Thu, 22 May 2003 15:02:40 -0000
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

--- In ukha_d@xxxxxxx, ian.bird@c... wrote:
>
> Hi Patrick
>
> How did you do the interface into the micro? I saw reference to a
sine wave
> which is not the best for digital inputs. Would you use opamps to
make it
> into a digital signal, use sine into D type flip flops (if you can)
or what
> other choices? I have been looking into this myself for menu
navigation.
> Ideally I want most of the work done by the time the data is read
into the
> micro to aid simplicity.
>

The switch I used was just a switch - no sine waves. The phase of two
pulse trains lead or trailed each other to indicate direction and
speed. Straight digital inputs, nothing fancy.

Patrick



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