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);