9/13/2023 0 Comments Arduino rgb led common anode![]() ![]() I happen to have a SMD type 3W RGB LED and I felt that it is important to mention a little bit about that.Īs you can see from the above image, the SMD type RGB LED has 6 leads, in contrast to only 4 leads in its through-hole counterpart.Īn SMD RGB LED also contain three individual LEDs, each for Red, Green and Blue lights but each internal LED has its dedicated anode and cathode leads. With the increasing popularity of SMD components, even RGB LEDs are being manufactured. The following image shows a Common Cathode RGB LED along with its driving circuit.Īs mentioned earlier, a through-hole RGB LED has 4 leads. ![]() The following image shows the internal layout of a Common Anode type RGB LED and also its driving circuit.Ĭoming to a Common Cathode type RGB LED, you might have guessed the internal layout and the driving circuit by now. Related Post: RGB LED Bulb How to Drive an RGB LED? Common Anode type RGB LED I will show you how to drive both the variants. In this project, I will use a Common Cathode type RGB LED. Generally, the common cathode variant is found more frequently than the common anode variant. The through-hole variant of an RGB LED has 4 leads: one lead for each individual color (Red, Green and Blue) and the fourth one is the common lead (which can be either a cathode or anode). Since an RGB LED consists of three individual LEDs in a single package, the number of leads is different than that of a regular LED, which has two leads (one for cathode and the other for anode). Appearance wise, an RGB LED looks very similar to a regular LED except that an RGB LED has three LEDs, each for Red, Green and Blue lights and all these are housed in a single package. Hence, it is called RGB LED (RGB stands for Red, Green and Blue). RGB LED is a type LED which emit multiple colors i.e. There are several types of LEDs available today and RGB LED is one such fascinating variant of LED. Coming to an LED, it is short for Light Emitting Diode, which is a semiconductor device, that emits light when current passes through it. So, from the first Arduino program itself, you will begin working around LEDs. In this program, you will Blink an LED on and off at a certain delay. When you begin your adventure with Arduino, the first Arduino program you will write or start your Arduino experience with is the Blink program. Circuit Diagram of Arduino RGB LED Interface. ![]()
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