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From: "John Jardine"
Subject: Re: It must be christmas time
Date: Wed, 27 Nov 2002 16:56:56 -0000
NNTP-Posting-Date: 27 Nov 2002 16:45:06 GMT
X-Newsreader: Microsoft Outlook Express 5.00.2615.200
andy wrote in message
> I need a you all to spend all of your time to design me a circuit to
> make my christmas lights
> blink/flash/flicker/chase/run/talk/laugh/sing/fart/vommit younameit.
> It has to be real smart but simple and cheap. I am only a newbie, I
> know heaps about electronics, i can even plug in a christmas light
It is real smart and simple! and a little eight way switch can select 1 of 8
different sequencing patterns.
A programmed PIC is needed, directly feeding a small Triac.
The trick is to realise that the PIC can be powered directly from the 240v
mains via a single resistor.
Even more effective is if two Triacs are run from the PIC feeding a couple
of intertwined 'rope of lights'.
(Commercial Xmas illumination controllers use this method)
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