In article ,
whisky-dave wrote:
On Tuesday, 13 December 2016 02:54:08 UTC, John Rumm wrote:
On 13/12/2016 00:23, Dave Plowman (News) wrote:
Got a set of Xmas lights. Gawd knows how they do them at the price.
Blue and White. PS/controller gives a variety of programmes.
Including flashing the blue and white alternately, or all on
together. But only two wires from the PS. I can see reversing the
polarity could have one colour or the other, but how both at once
with no apparent flicker? Fast switching?

Yup pretty much... Throw a bit of PWM into the mix as well, and you
should be able to get dimming and fading effects as well.

It's more than just PWM it's IC2 which uses atmel contollers to
control each individual LED is possible .

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

Wouldn't expect Amazon to provide any real details, but the pic shows a
four pin connector. Which would allow three different colour LEDs to be
driven in any way you can think of.

That wasn't what I was asking about.

--
*Beauty is in the eye of the beer holder...

Dave Plowman London SW
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