Hello,
in a recent project, I wanted to build up a lamp using LEDs. I searched and I found that the variable white temperature led strips are the best for my purpose. The only problem is that I have no idea how to control the variable temperature using the RGB busses. What I want to achieve is with the help of a potentiometer, been able to cycle through the whole temperature spectrum. How I can achieve this?
As the led controller I'm using a transistor for every bus, and a led strip for reference that I was looking to buy is the following: led strip (the color option is cct).
Many thanks!
I have never used them, but as no-one else has replied, I'll guess that 2 of the rgb busses control the warm white and cool white channels and the 3rd channel is not used. So I guess the 3 channel "controller" or driver you plan to use will probably work fine. But you should post a link to the "controller" also.
Thanks, never thought about this possibility.
I'm going to use as a controller an arduino nano paired with two FQP30N06L transistor, as shown in this page
Ok, that plan sounds reasonable.
The information in the EBay sale you linked to is confusing because the photo shows 4 different types of LED strip and the answer will depend to some extent on which they are supplying. Unless it's too late I suggest you buy from a seller that shows the LED strip they are actually selling, rather than leaving you to guess which one you are going to get.
If you have already bought it then it would help to post a photo here.
The OP said it was the "CCT" option, which can be selected as "colour" on the eBay page, and there is also this picture:
There is an unocupied space for a third resistor in each section of the strip, and the connectors are marked RGB, which seems to confirm my theory that one of the 3 channels is not used.
Thanks Paul,
I think you are right then.
Thanks for the help!