Searching \ for '[EE]: Need help locating unusual part' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=need+help+locating
Search entire site for: 'Need help locating unusual part'.

Exact match. Not showing close matches.
PICList Thread
'[EE]: Need help locating unusual part'
2001\08\28@084825 by Byron A Jeff

face picon face
Oops! Forgot the tag!

I have a couple of applications where I need simple and compact local control.
I've settled on a potentiometer and switch arrangement where the pot selects
the desired value and the switch locks the value in and advances to the next
input. I'm about halfway through my testing.

I realized that two separate components are really not necessary. All I need
is a pot with an integrated switch. This would both reduce the space required
for the user interface and simplify the interface because it can then be
operated with one hand without having to move that hand from one component to
the other.

But after searching for a bit I also realized that the commonly
available component doesn't really meet my need.  Common pot/swtch
combos are organized an a volume/power knob type arrangment.  The
switch clicks on/off at one end. What I need is a switch that can be
pushed with the know set in it's current position.

I'm envisioning operation where the interface is activated bu pushing the knob.
The display will flash the value to be set. The knob is turned to the desired
value. Then the knob is pushed again to set the value and advance to the next
one. Once all the values are set the interface is deactivated until the knob
is pushed again.

My two immediate applications are setting the time on my sunrise/sunset
controller and a programmable thermostat I'm putting together. But clearly
it has applications in dimmers and any other kind of control interface where
the switch indicates start/advance/completion and the pot sets the value.

So does such an item exist?

Let me know. TIA.

BAJ

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email spam_OUTlistservTakeThisOuTspammitvma.mit.edu with SET PICList DIGEST in the body


2001\08\28@131205 by Lawrence Glaister

flavicon
face
The closest thing that comes to mind are the pots used on cheap light
dimmers. The pot rotates as normal and turns the light on and off when
the knob is pushed.  I have not been able to find a source for these
pots other than shrink wrapped at the hardware store. If you are looking
for prototype quantities, the hardware store might work, and for
production quantities, you can probably track down the pot manufacturer.
cheers

On 28 Aug 2001 08:47:34 -0400, Byron A Jeff wrote:
{Quote hidden}

--

=====================================================================
Lawrence Glaister VE7IT              lgspamKILLspamjfm.bc.ca
1462 Madrona Drive                   http://jfm.bc.ca/
Nanoose Bay, B.C.                    http://members.home.com/cncstuff
Canada          V9P 9C9              http://gspy.sourceforge.net
=====================================================================

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email .....listservKILLspamspam.....mitvma.mit.edu with SET PICList DIGEST in the body


2001\08\28@144022 by Byron A Jeff

face picon face
On Tue, Aug 28, 2001 at 10:10:39AM -0700, Lawrence Glaister wrote:
> The closest thing that comes to mind are the pots used on cheap light
> dimmers. The pot rotates as normal and turns the light on and off when
> the knob is pushed.  I have not been able to find a source for these
> pots other than shrink wrapped at the hardware store. If you are looking
> for prototype quantities, the hardware store might work, and for
> production quantities, you can probably track down the pot manufacturer.
> cheers

Man I just love the PICLIST! That's an outstanding idea! I'll go looking
at the Home Depot today.

I only need prototype quantities.

I just LOVE the PICLIST!

BAJ

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email EraseMElistservspam_OUTspamTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body


2001\08\28@190922 by mike

flavicon
face
Rotary encoders are readily available with rotate+push action  - ideal
for this sort of application, and you don't need an ADC to read them!
Piher and Alps are 2 makes that come to mind.
{Quote hidden}

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email KILLspamlistservKILLspamspammitvma.mit.edu with SET PICList DIGEST in the body


More... (looser matching)
- Last day of these posts
- In 2001 , 2002 only
- Today
- New search...