I want to create a light box for my son's little league, with three
green lights for balls, two yellow lights for strikes and two red
lights for outs. Each light needs to be on a seperate switch, but the
whole shebang will be wired together. Can anyone give me advice on
how to wire these all together? Thanks!
On Sun, 03 Jun 2007 18:25:23 -0700, firstname.lastname@example.org wrote:
This is where I am supposed to tell you to hire an electrician before
you kill yourself, the whole team and all the spectators. ;-)
Wire one side of the battery to one side of all the switches, the
other side of the battery to one side of all the lights and then
connect one switch and one light together with the unused terminals.
The answer below is entirely correct and very nicely stated, but I will add
one additional step to respond to your specific request for the multiple
When connecting "one switch and one light together" per the instructions
below, you actually need to connect the green switch's unused terminal to
the unused terminal on each of the 3 green lights, then connect the yellow
switch's unused terminal to the unused terminal on each of the 2 yellow
lights, and finally the last switch, red's unused terminal, to the unused
terminal on each of each of 2 red lights.
Hope this helps you.
I agree entirely.
I drew up a schematic and emailed it to the original poster
( email@example.com). This is a lot easier to follow than a text
description of the wiring.
Either you weren't clear or you've never played baseball. :)
Better: you actually need to connect [each] green switch's unused
terminal to the unused terminal on each of the 3 green lights, then
connect [each] yellow switch's unused terminal to the unused terminal
on each of the 2 yellow lights, and finally the last [set of]
switch[es], [each] red's unused terminal, to the unused terminal on
each of each of 2 red lights. One light per switch.
Maybe there would be some use for a master switch also, that would
turn them all off, but I can't think of one. Like during commericals
or disputes with the umpire, but the latter one doesn't seem like a
reason to turn the lights off..
Your wording is better than mine. I struggled with the best way to state the
details, and eventually drew up a schematic / wiring diagram and mailed it
directly to the original poster since his email address with publicly shown.
It is much simpler to follow the diagram than it is to describe it in words.
I am reminded of the challenge I was once given by an English teacher:
Describe in writing a helix without using either a drawing or your hands to
Superb suggestion Terry!!! I never knew this existed. Here is the link to my
It was drawn quickly with a simple drawing program so apologies if it looks
a bit amateur. I used to have schematic capture, SPICE, and other PCB layout
software running but not on this machine.
I still don't follow what you are using for switches. I would expect
someone to use single pole switches. Single pole switches don't have
any unused outputs.
What type switches are you suggesting?
I use a program called TinyCad. It is free and pretty easy to use.
Each of my 3 switches is a single pole single throw (SPST) switch with ***no
unused terminals". These switches (red, green, yellow) control the red,
green, and yellow bulbs. The bulbs have a common bus fed directly from the
power source on one of their 2 leads, and have switched power to their
remaining leads. The red bulbs, for example, are illuminated when the
corresponding switch is closed.
The common bus connecting all of the bulbs on one side to the power source
is at the extreme far right edge of the drawing, and appears to be nearly
clipped off when viewed on the web site. The uploaded picture shows the line
a bit more clearly, but perhaps it is harder for you to recognize it because
of the way the image gets a slight amount of cropping, JPEG compression, or
I might as well be from a different solar system when it comes to baseball.
I guess I much prefer individual competition....car racing, boxing, martial
arts, Olympic wrestling, and those types of things rather than organized
teams as played here in the U.S. I just find the whole business of "major
league" and NFL to be so much big business.... and so little true
sport.......I guess I would call it "the Steinbrenner effect".....
Definitely. We had a 5-minute assignment in high school English to
pick a machine and describe how it works. I think I used a can
opener. I felt so-so after I spoke my part.
The guy after me used a key cylinder, the innards of which I didn't
know. After he was done, I did know how it worked. And I felt pretty
humiliated by my crummy explantation, which I had to admit probably
didn't explain anything to anyone who hadn't already seen one.
That will probably take me years.
I'm glad you've played baseball. :)
Hexix: A curve described by the parametric equation
x = cos(t)
y = sin(t)
z = t
where t ranges over the real numbers, or any curve that results from a
rotation, translation, reflection, or change of scale of another helix.
Beautiful! Precise, succinct, mathematically accurate. Minor nit....use of
"helix" in definition's final phrase "scale of another helix" might cause my
English teacher to challenge the recursive reference. I also resorted to a
little Google help on this one and came up with this:
I still prefer the definition where I get to wave my hand around, or get to
say something like:
"A helix is nothing more than the shape of a screw" and leave the rest up to
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