and yellow means you can ether go or stop.
just kidding.
as far as red color goes welcome to America every thing
is business. I made a few products that only red led is used
and when it is on "no blink" it means it is working as power led when it
starts blinking it gives error code and they know there is
a problem and they look at error code.
It will be nice to use green as power led but then the price will go up. 

Andre
 

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
Of Herbert Graf
Sent: Tuesday, November 28, 2006 12:19 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE] LED color mixing: RGB...O?


On Tue, 2006-11-28 at 09:51 +0000, Alan B. Pearce wrote:
> >We are currently building a bunch of industrial machinery bound for
> >China.  The Italian engineering company that wrote the spec says that
> >all push buttons for the motor starters are supposed to be green for
> >stop and red for start.  Pilot lights are to be red for running and
> >green for stopped.  Just backwards from the way most of the equipment we
> >build for use in the USA...
> 
> This is actually the same way around as traffic lights.
> 
> Think of the colours in these terms -
> 
> green - safe for humans to get involved, safe to proceed (traffic light)
> 
> red - dangerous equipment in operation, danger ahead (traffic light)
> 
> So when you press the red button you are making the equipment an unsafe 
> environment.
> 
> When you press the green button you are making the equipment a safe 
> environment.
> 
> The Italians have had things this way around for a long time, and when you 
> think about it being like traffic lights it makes sense. 

But using your traffic light analogy it can easily go the other way:

traffic light green means "go" -> make the machine go
traffic light red means "STOP" -> make the machine stop

Neither is more "right" then the other, it's all about the cultural
background of the person pushing the button.

It is kinda scary that what means "safe" to one person means something
the EXACT opposite to another.

TTYL

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist