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Jeff Layman[_2_]

On 08/03/20 16:09, wrote:
On Sunday, 8 March 2020 12:28:01 UTC, Jeff Layman wrote:
On 08/03/20 11:14, tabbypurr wrote:
On Sunday, 8 March 2020 04:44:04 UTC, Susan wrote:
replying to Mark, Susan wrote:

Hi... In my bedroom I currently have a pull cord light switch. Im thinking
of having a long cord pendant light by the side of my bed... My question
is.... Is it possible to buy a PULL CORD light switch that would operate each
light fitting individually at separate times.... Kind regards.

No. Such things existed long ago and it's doable to make them. Each pull of the cord turns a wheel 1/4 or 1/6th of a turn. Every other position is both off. Sticky out bits on the wheel press on microswitches - 6 way adds a 'both on' position. Or it could be done with a little digital logic & 2 relays.

"Mark's" original post for this was on Homeowners Hub in 2008...

Probably the easiest (but certainly not the cheapest) way to do this
today would be with a Quinetic 2-gang switch on the bedside table and
individual receivers for each light.

2 pullcords is as easy as it gets.

Where do you get that idea?
Quinetic receivers: find power cable to light fitting. Cut. Connect
receiver. Repeat for other light fitting. Ensure transmitter and
receivers talk to each other.
Pullcords: find power cable to light. Cut. connect cut ends to Wago or
other connector. Run cable to where pullcord switch will be placed.
Drill hole in ceiling. Screw switch to ceiling. Pull cable through and
connect. Connect to Wago. Repeat for other light fitting.

Of course, I could be wrong. Why not ask Adam which he thinks would take
longer?

Colour one to avoid confusion. I daresay it could also be done with
relay logic! Another option is to use a semirigid drop rod to rotate a
cam with microswitches. Or just drop the wires - eg 3 or 4 core - and
fit 2 switches.

Susan's question was from today fwiw.

I know; that's why I made the suggestion. I wouldn't have bothered if it
was from 2008.

--

Jeff