KY-009 3-Color LED

Description

Specifications

1. using 5050 full color LED with max current of 20mA
2. Forward Voltage : Red 1.80V (2.4 max), Green,Blue 2.8V (3.6V)
3. RGB trichromatic limiting resistor to prevent burnout
4. Through the PWM adjusting three primary colors can be mixed to obtain different colors
5. Operating voltage: 5V
6. LED drive mode: common cathode driver

Required Hardware Devices

• Arduino controller × 1
• KY-009 3-Color LED
• USB data cable × 1

Connecting

Since you can’t connect the led’s directly to the Arduino you will need resistors!!

• Arduino pin 9 –> 180 Ohm resistor –> Pin ‘R’ of KY-009 module
• Arduino pin 10 –> 100 Ohm resistor –> Pin ‘G’ of KY-009 module
• Arduino pin 11 –> 100 Ohm resistor –> Pin ‘B’ of KY-009 module
• Arduino GND –> pin ‘-‘ of KY-009 module

Code

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=0;
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 (1);
  }
  for (val = 0; val <255; val++)
  {
    analogWrite (11, val);
    analogWrite (10, 255-val);
    analogWrite (9, 128-val);
    delay (1);
  }
  Serial.println (val, DEC);
}