Warning about CI-11s (was RE: [simpits-tech] Simple rotary encoder interface)

[Stuart Whelan]

Be warned that we have been using the CI-11 encoders, we have about a
half dozen on them in out pit.

We are currently going through the process of replacing them with better
more expensive ones, as after only 6 months of use they have become
unreliable and 'loose' in their movement.

I have seen and heard of this problem in some other devices that use
this encoder also.

We are going to these:

http://embrace.grayhill.com/embrace/Item/ASP/Item-Detail.asp?PartNo=61C1
1%2D01%2D08%2D02&CatalogGroupID=Series61C16or32PoswPushbutton&GroupDispl
ayLabel=

Which are available from Radio Spares (http://ww.rswww.com)

Cheers,
Stuart.

> -----Original Message-----
> From: simpits-tech-admin@simpits.org 
> [mailto:simpits-tech-admin@simpits.org] On Behalf Of 
> Sittisudjatum, Sukit 
> Sent: Monday, 10 March 2003 2:36 p.m.
> To: simpits-tech@simpits.org
> Subject: RE: [simpits-tech] Simple rotary encoder interface
> 
> 
> I just found the encoder in a electronic store by accident 
> (yeah, I was so busy finding the pot for my throttle last 
> week before receiving mail from Jay).  It's not the one that 
> Kevin used.  By searching from the net, I found www.piher.net 
> wherer can you download a PDF file of model CI-11 
> (incremental encoder). it gives 15 or 20 pulses/detents per a 
> full rotation forming A & B output signal and looks very 
> rigid with aluminum shaft. Moreover, it has a built-in 
> push-on momentary switch. So, we simply have 3 switch from 
> this toy to work with!  By the way, I couldn't search the 
> similar model from Digikey.
> 
> Can we use the one I found for the same purpose?
> 
> Sukit Sittisudjatum
> Bangkok, Thailand
> www.thaiflight.com
> 
> 
> -----Original Message-----
> From: Peter Holt [mailto:pholt@ihug.com.au]
> Sent: Monday, March 10, 2003 7:43 AM
> To: simpits-tech@simpits.org
> Subject: [simpits-tech] Simple rotary encoder interface
> 
> 
> Guys,
> 	A gentleman called Kevin Darling has come up with a way 
> of connecting rotary encoders to a hacked keyboard without 
> any additional electronics.  He used the Panasonic encoders 
> available from Digikey, part no. P10859-ND.  You can see his 
> post here:
> 
http://www.flightsimnetwork.com/dcforum/DCForumID12/255.html

When I read this post, I was amazed by how simple it was. My next
thought was, I wonder if you could use the same approach with a Hagstrom
KE72 keyboard encoder.

Since I have both the KE72 and some of the cheap Panasonic rotaries, I
had to try and it works! 

Simply connect the centre pin of the rotary to ground on the KE72 and
the other two pins to two inputs, input xx and input yy. Then load the
KE72 with a configuration file containing these two lines: 
 
INXX:[SHIFT]
INYY:[a]
 
where the character assigned to input yy can be whatever you want to
use.

Then when the encoder is rotated one way you will get the lower case of
the character assigned to yy and the other, the upper case.  It is also
possible to use [CTRL] instead of [SHIFT].

Hope this is useful,
Peter

 


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