LCD digital watch

[keithdoxey]

1. I'm thinking that any time you meet a Black wire comming out of any device, it's got to be the cold or Negative Lead... I'm also thinking of US Power leads now...

LOL

I wonder how many UK wiring installations are going to get really confusing now that Mains wiring colours have been changed.

OLD - Function - NEW

Red - LIVE1 - Brown
Yellow - LIVE2 - BLACK
BLUE - LIVE3 - Grey
BLACK - NEUTRAL - BLUE

Shouldnt be too much of a problem in domestic installations but commercial 3 phase could be a nightmare !!!

[Melanie]

I can see the logic behind it... we have Yellow/Green for Earth, Brown for Live and Blue for Neutral in single phase cables (I'm real glad that LCD didn't have a Brown and a Blue wire!). In panel-building, Blue DIN terminals were always used for Neutral. So this kinda brings single and three-phase somewhat in-line. And it eradicates Yellow being mixed with Yellow/Green (I have actually seen a supposed qualified electrician doing this in a factory!).

However I do really wish the powers that be stop tinkering. Ultimately, trust nothing and nobody but yourself.

[Luciano]

I don't think there is anyway to reuse that LCD for display.......And If you have just tell me

Hi,

You can direct drive a LCD if there is no electronics on the LCD glass.

DIRECT DRIVE OF LCD DISPLAYS:
http://www.zilog.com/docs/z8/appnotes/lcd_apnt.pdf





Luciano