Re: Re: Jog Dial - where can I buy ?

[ian.bird@xxxxxxx]

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.

Thanks

Ian




---------+---------------------------->
"Patrick
Lidstone"
<patrick@lidstone
.net>

22/05/2003 08:09
Please respond to
ukha_d

---------+---------------------------->
>-----------------------------------------------------------------------------------------------------------------------------

To:       ukha_d@xxxxxxx
cc:
Subject:  [ukha_d] Re: Jog Dial - where can I buy ?
>-----------------------------------------------------------------------------------------------------------------------------




--- In ukha_d@xxxxxxx, "Hawes,Timothy Edward (GEG)"
<haweste@a...> wrote:
> Hi all,
>
> I'm looking to buy a jog dial for a home-brew project I'm working
on - ideally around 1" diameter, momentary push button and pref. back
lit. CPC don't seem to sell them and googling only turned up products
*with* jog dials.
>

Jog dials rule! I've not been able to find one with the push-select
action. The rotary bit is easy enough - look for rotary encoders or
digital rotary encoders. Farnell do a simple rotary encoder which
outputs a dual pulse train which is phased depending on direction on
speed of rotation for about three quid. I made do with a separate
push button for the select action immediately below the jog dial.

Patrick