This tutorial goes over how to control an RGB LED with an Arduino ESP8266 🚦
Supplies
- (1) LED - RGB Diffused Common Cathode
- (3) Resistor 220 ohm
- (4) Jumper wires
- (1) ESP8266 Wi-Fi Microcontroller (NodeMCU v3)
For refrence I have included the pinout diagram for the ESP8266 Wi-Fi Microcontroller (NodeMCU v3) that I am using.

Setup

Code
This project does not require any additional libraries. The Arduino standard lib is enough.
int red_light = 0;
int green_light = 4;
int blue_light = 5;
void setup() {
pinMode(red_light, OUTPUT);
pinMode(green_light, OUTPUT);
pinMode(blue_light, OUTPUT);
}
void loop() {
RGB_color(255, 0, 0); // Red
delay(1000);
RGB_color(0, 255, 0); // Green
delay(1000);
RGB_color(0, 0, 255); // Blue
delay(1000);
RGB_color(255, 255, 125); // Raspberry
delay(1000);
RGB_color(0, 255, 255); // Cyan
delay(1000);
RGB_color(255, 0, 255); // Magenta
delay(1000);
RGB_color(255, 255, 0); // Yellow
delay(1000);
RGB_color(255, 255, 255); // White
delay(1000);
}
void RGB_color(int red_light_value, int green_light_value, int blue_light_value) {
analogWrite(red_light, red_light_value);
analogWrite(green_light, green_light_value);
analogWrite(blue_light, blue_light_value);
}

If you have any questions or want to see more examples in these articles, please comment below or create an issue at https://github.com/gabrielcsapo/gabrielcsapo.com.