4 x 5050 SMD RGB LED Module for Arduino Projects

Red, Green and Blue LED for Lighting Arduino Projects

Display a full range of colours with this RGB LED module. The 4 x SMD 5050 LEDs onboard are super bright and controlled by the 74HC595 chip.  

•    5VDC operation
•    Colours: RGB
•    Dimensions: 48(L) x 38(W) x 5(H)mm

Pin outs

Vcc - 5V

SDA - D2

SLK - D5

STB - D4

GND - GND

Sample code

 int data = 2;//74HC595的14脚 数据输入引脚SI 
int clock = 5;//74hc595的11脚 时钟线 SCK
int latch = 4;//74hc595的12脚 输出存储器锁存线RCK 
int ledState = 0;
const int ON = HIGH;
const int OFF = LOW;
void setup()
{
pinMode(data, OUTPUT);
pinMode(clock, OUTPUT);
pinMode(latch, OUTPUT);
}
void loop()
{
for(int i = 0; i < 256; i++)
{
updateLEDs(i);
delay(500);
}
}
void updateLEDs(int value)
{
digitalWrite(latch, LOW);//
shiftOut(data, clock, MSBFIRST, ~value);//串行数据输出，高位在先
digitalWrite(latch, HIGH);//锁存
}

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