Bicolor LED common cathode module 3MM
Introduction:
RGB LED module is made of a SMD full-color LED. You can adjust the three primary colors (red/blue/green) by using the PWM voltage input of the R, G, B three pins to realize full color mixing effect. You can realize cool lighting effect using Arduino's control over this module.
Product features:
1. the use of 5050 full-color LED
2. RGB tricolor connected to current-limiting resistance to prevent burn out
3. PWM regulate three primary colors to produce different colors
4. can be connected to various MCU
5. Working voltage: 5V
6. LED drive mode: common-cathode drive
Arduino test 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;
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);