//项目五 – 炫彩RGB灯
int redPin = 9;
int greenPin = 10;
int bluePin = 11;

void setup(){
     pinMode(redPin, OUTPUT);
     pinMode(greenPin, OUTPUT);
     pinMode(bluePin, OUTPUT);

}
void loop(){
    colorRGB(random(0,255),random(0,255),random(0,255)); //R:0-255 G:0-255 B:0-255
    delay(1000);
}

void colorRGB(int red, int green, int blue){
     analogWrite(redPin,constrain(red,0,255));
     analogWrite(greenPin,constrain(green,0,255));
     analogWrite(bluePin,constrain(blue,0,255));
}