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For my home decoration, i want to individually address the led strings . Since one string is of a single color, i need an ic with serial communication similar to WS2811 ic but monochrome to control them.

I'll use a mosfet or whatever required driven by that .

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WS2811 strings were in the past available in single colour; they had 3 LEDs per chip. If you're building your own strip, that's still an option.

So the first LED is on the red channel second on green and and the third on blue, fourth LED is on the red of the second chip then green and blue, next chip, etc.

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  • \$\begingroup\$ The decoder chip has no idea what the colors are. In an RGB strip there's a repeating pattern of three the programmer has to match when working in terms of raw channels, in a monochrome strip they're all the same. \$\endgroup\$ – Chris Stratton Jul 6 at 2:04
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Depending on how your LEDs are spatially distributed, there's also shift registers with LED driving inputs, meant exactly for such applications.

Look through the "power management"->"LED drivers" categories on sites like ti.com.

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  • \$\begingroup\$ Shift registers wont work in my case. My led string lights are seperated almost1.5 -2 feet apart and all across the perimeter of my roof and boundary, thats very long (atleast 230 meters of length \$\endgroup\$ – Aman Kumar Jun 27 at 19:39
  • \$\begingroup\$ uhhhh are you sure a WS2811-style controller then suffices? You need some signal quality between LEDs. \$\endgroup\$ – Marcus Müller Jun 27 at 19:44
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    \$\begingroup\$ Not sure, but signals are sort of reconstruted while passing over ic, so if every ic is capable of sending signal over 2 feet distance, that'll work. \$\endgroup\$ – Aman Kumar Jun 28 at 6:34
  • \$\begingroup\$ Also i couldn't find any usefull ic supporting serial data transmission like ws2911 in the 'power management' section of ti.com \$\endgroup\$ – Aman Kumar Jun 28 at 6:36
  • \$\begingroup\$ I specifically said in the LED drivers section of that, look for things that work as shift registers. It's not hard to use that website, but here you go: ti.com/power-management/led-drivers/overview.html \$\endgroup\$ – Marcus Müller Jun 28 at 8:46

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