Tri-color RGB LEDs of device types, and connection

RGB LEDs and RGBW is very actively used in the advertising industry, and are perfect for additional (decorative) lighting in the house. In this article, we will focus on the data structure of LEDs, as well as on how they are managed and connected.

The idea of ​​creation and the name

The idea of ​​creating this type of LEDs leg mixing principle three fundamental colors and obtain different shades. These basic colors are red (red), Green (green) and blue (Blue). The basis of the names of such diodes formed the first three letters of the names of colors.

Apparatus RGB diodes

In fact, such a diode device is quite simple. Structurally, the three individual colored diodes packaged in a single housing, or to put it scientifically, integrated on a common matrix.

On the above figure below quite clearly visible diodes mounted on one platform.

types of LEDs

For use in the production of various control schemes are available the following sub RGB LEDs:

- Option common cathode. In this embodiment, used for controlling three separate output anode and the cathodes are connected to a common point;

- Option with common anode. In this case, control is performed by supplying negative pulses at the cathode terminals of diodes and the common point are already anodes;

- no common points with six pins. In this embodiment, the common points is not provided.

Note. As such, standard pinout on these LEDs is not provided. Therefore, the type pinouts entirely depends on the task that confronts the manufacturer.

RGBW LEDs

In order to get the white color of the three basic required especially precise balancing the emission of three colored diodes. From a purely practical side, it is quite problematic to implement. It is for this reason, to play white began to add a fourth diode with a white glow. Thus, there was a species called RGBW.

connection

If you are the owner of a specific set of Arduino, then you may use the following wiring diagram:

If it is necessary to connect a powerful tape, then the connection is established through transistors:

You can also connect RGB strip without using Arduino. Here is a connection option using three drivers CAT4101 type:

But the easiest option is to connect a tape through a ready-controllers:

Their price is quite acceptable, and you will not have to rack their brains about how to obtain a particular shade in your belt.

conclusion

Tape RGB or RGBW is an excellent decision support in the decor of your room or advertising signs. Fundamental difference in working with ordinary diode tape no.

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