![]() To generate other colors, we have to vary the amount of RED, GREEN, and BLUE color because we know the mixing of these three basic colors in different amounts will generate all colors. If we turn on two LEDs together, then we have 3 more colors.Īnd if we turn ON all 3 LEDs together, then? Yes, it’s a white color.īut still, 3 + 3 + 1 = 7 colours! What about more colors like PINK, ORANGE, SKYBLUE, LIGHTGREEN, etc.? So here is the logic to generate other colors. What about other colors? How can we get (generate) all colors from RGB LED? Now you all might be thinking that there are only 3 LEDs in this, and we can have only 3 colors RED, GREEN, and BLUE. While in common anode SMD RGB LED, common terminal is connected with +Ve supply and R, G or B terminal has to be connected to ground. It is understood that to turn on any LED in common cathode type RGB SMD LED, we have to apply +Ve supply to R, B, or G terminal, and the common terminal is connected to the ground. Please have a look at the figure given below. This common terminal can be either anode or cathode, and based on it, there are two types of such LEDs (1) common cathode and (2) common anode. Three terminals are for RED (2), GREEN (4), and BLUE (6) LEDs, while the other 3 terminals are common terminals.
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