Overview

RGB LED module consists of a plug-in full color LED made by R, G, B three pin PWM voltage input can be adjusted Section three primary colors (red / blue / green) strength in order to achieve full color mixing effect. Control of the module with the Arduino can be achieved Cool lighting effects.

Specifications

the use of plug-in full-color LED
RGB trichromatic limiting resistor to prevent burnout
through the PWM adjusting three primary colors can be mixed to obtain different colors
with a variety of single-chip interface
the working voltage: 5V
LED drive mode: common cathode driver

Schematic

Arduino pin 11 --> Pin R module
Arduino pin 10 --> Pin G module
Arduino pin 9 --> Pin B module
Arduino pin GND --> Pin - module

You don't need any resistors, these are already included on the module.

Example code

//KY016 3-color LED module
int redpin = 11; // select the pin for the red LED
int bluepin = 10; // select the pin for the blue LED
int greenpin = 9 ;// select the pin for the green LED
int val;
void setup () {
  pinMode (redpin, OUTPUT);
  pinMode (bluepin, OUTPUT);
  pinMode (greenpin, OUTPUT);
  Serial.begin (9600);
}
void loop ()
{
  for (val = 255; val> 0; val --)
  {
    analogWrite (11, val);
    analogWrite (10, 255-val);
    analogWrite (9, 128-val);
    delay (10);
    Serial.println (val, DEC);
  }
  for (val = 0; val <255; val ++)
  {
    analogWrite (11, val);
    analogWrite (10, 255-val);
    analogWrite (9, 128-val);
    delay (10);
    Serial.println (val, DEC);
  }
}

Simple demo without cables

Video with random blink.

Example code random

/*
 Demo for KY-009 and KY-016.
 Plug the board directly in your Arduino board without using
 cables. If you turn the board 180° you should use pin 12 as
 ground and swap the green and blue pin.
 The demo will over time cycle through all the 16777216
 different colors which can be made with 3x8bit.
 */
int groundpin = 8; // write 0 to get ground
int greenpin = 9; // select the pin for the green LED
int redpin = 10; // select the pin for the red LED
int bluepin = 11; // select the pin for the blue LED
 
void setup () {
  pinMode (redpin, OUTPUT);
  pinMode (greenpin, OUTPUT);
  pinMode (bluepin, OUTPUT);
  pinMode (groundpin, OUTPUT);
  digitalWrite (groundpin, LOW);
}
 
void loop () {
  analogWrite (redpin,   random(255));
  analogWrite (greenpin, random(255));
  analogWrite (bluepin,  random(255));
  delay (300);
}

Arduino KY-016 3-color LED module

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