![]() ![]() You can see the module’s circuit diagram (drawn by me) below. The most usual is the common-cathode RGB LED module with a single SMD5050 RGB LED and three current limiter resistors. There are mainly two variants of this module having common-cathode (CC) and common-anode (CA) configurations. For example, you can create a combination of RED and GREEN colors by uncommenting both the statements.The RGB LED module shown in the above image is a very popular generic RGB LED module available in the market. You can glow an individual color or a combination of the three colors. In the loop() function, turn on the specific color by uncommenting the code. In the setup() function, set all the pins as OUTPUT because Arduino will use this pin to send voltage to the RGB LED pins in order to turn on the specific color. Circuit diagram of common Anode RGB LED with Arduino Arduino code for common Anode RGB LED with Arduino int red=3 Ĭircuit diagram of common Cathode RGB LED with Arduino Arduino code for common Cathode RGB LED with Arduino int red=3 Ĭreate variables for defining the pins of Arduino UNO where you have connected the pins of RGB LED. It will also work in the same manner as that of the common anode RGB LED.īy directly applying a voltage to both the types of LED you can get the RED color, BLUE color, GREEN color, a combination of RED and BLUE color, a combination of RED and GREEN color, a combination of BLUE and GREEN color, and a combination of all the three colors. Then to light up the RED color, connect the RED color terminal to the positive terminal of the power source. ![]() To light up a common cathode RGB LED, you have to connect its common terminal to the negative terminal of the power source. You can also light up two or all three colors simultaneously, then you will get different color combinations. Then to light up the RED color, connect the RED color terminal to the negative terminal of the power source. To light up a common anode RGB LED, you have to connect its common terminal to the positive terminal of the power source.
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