#Control led arduino how to#

To generate different colors from RGB LED, we have to vary the intensity (brightness) of RED/GREEN/BLUE LED. Here, in our case – the color amount is color intensity – which means the brightness of RED/GREEN/BLUE LED.

#Control led arduino how to#

So next question is how to vary the amount of these three colors? (It is possible in painting as we can change their amount or dilute them, but here it is not so!) 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. Before directly jumping to the LED strip, first, let us understand the single-cell – the building block of the strip – and that is one RGB LED SMD typeĪs you can see in the above figure, a single RGB SMD LED is a combination of 3 tiny individual RED, GREEN, and BLUE LEDs.You can do all these and play with such RGB strips using ARDUINO, and it’s very easy and simple. What if I say all these you can do with our ARDUINO? Sounds interesting…….?!?!!!?

So do you want to build something like this? Like a multicolor LED chaser, fading, and other animation effects using multicolor LEDs? I bet you all might have seen somewhere the “ jaw opening” multicolor led chasing, fading, and animation effect.Īll these are possible using such RGB LED strips. These RGB LED strips can generate almost all the colors and their shades using different combinations of RED – GREEN – BLUE.Įven they can generate different “ eye-catching” illuminating effects like multicolor, rainbow, LED chaser, fading, etc. So such strips have 4 connections (1) +12 V (2) R – for Red LED (3) G – for Green LED (4) B – for Blue LED RGB strip with separate R, G, B inputs: these types of RGB strips have three separate inputs for Red, Green, and Blue colors with one more common input as +12V.RGB strip with addressable RGB LEDs: these types of RGB strips have only three wires for connections (1) +12 V (2) Gnd and (3) DI-Data input.There are two types of RGB LED strips available in the market: The decoration using these RGB LED strips serves as “ cheery on a cake” for every occasion or festival. Even modern houses, luxurious flats, restaurants, and hotels use RGB LED strips for illumination and decoration. They are also used for decoration in festivals like DIWALI, CHRISTMAS, etc. They are used in different functions like birthday celebrations, marriage, reception, parties, etc.

RGB LED strips are nowadays used everywhere in decorative lighting.