Re: Switch encoder problems

Spehro Pefhany wrote:
On Wed, 29 Mar 2006 20:05:51 -0800, the renowned Tim Wescott
<tim@xxxxxxxxxxxxxxxx> wrote:


Mike wrote:

On Wed, 29 Mar 2006 17:01:57 -0800, Tim Wescott <tim@xxxxxxxxxxxxxxxx>
wrote:

<snip>

Without knowing what the encoder _does_ when it stops between detents I can't say. Where you will have problems is if the encoder sits there vacillating between two values -- should that happen, and should you be using the simple and obvious rule for loading your synthesizer, your tuning will be jumping up and down continuously.


and that all probably depends on exactly where it stops.

Yup. I'd check to see if it's just the one encoder in the batch that does it, or if the other's do to.

OTOH, you can probably learn pretty quickly to make sure the thing drops into a detent before you let go -- after a while it'll become automatic, and you'll be surprised when your significant other can't operate your radio.


The ones we use have one output guaranteed at the detent (A guaranteed
'off'), but the other (B) can be in either state (or can go back and
forth). Ignoring that, there are (ideally) four edges per detent.


Best regards, Spehro Pefhany

That's interesting. The one that I used has one transition per detent -- i.e. each 'click' is 00, 01, 11, etc.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

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Relevant Pages

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