[simpits-tech] More from Hagstrom

[Roy Coates]

As regular readers will be aware, I was very impressed with their KE72
keyboard encoder which provided me with a very simple and very very
elegant solution to the problem of toggle switches in my cockpit. (There's
a review of the KE72 at www.simpits.org)

I recently had an email conversation with the ever helpful support folks
at Hagstrom and asked them about rotaries, especially where there is full
rotation as with transponder and autopilot controls. This is what they
sent back, I hope its as interesting for you as it is for me!

> We actually have several options for the rotary switches.  We have a
> version of our ME4 unit (ME4-Pulse $34.95), which accepts input from
> three rotary switches, and outputs six pulses which may be connected
> to KE72 inputs.  This device, when coupled with the KE72 inputs,
> provides a keystroke for each direction of the rotary switches.  In
> addition, we have an IC, that we sell to users who want to construct
> their own circuit, which takes input from 8 rotary switches and
> converts each switch into two pulses.  Each of the pulses indicates
> which direction the rotary switch is moving, and the output pulses may
> be connected to a device like the KE72 to provide keystrokes.  The IC
> is $32.95 each, and we include the misc devices for support circuitry
> (but the user mounts that to his own circuit board).



-- 

Roy.