[simpits-tech] Simple rotary encoder interface

[Justin Messenger]

That is slick, I'll have to play with that.
Justin


-----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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