用RGB彩灯展示彩虹

用RGB彩灯显示彩虹
int redPin = 11;
int greenPin = 10;
int bluePin = 9;
void setup()
{
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);  
}
void loop()
{
  RGB(255,0,0);
  delay(1000);
  RGB(255,50,0);
  delay(1000);
  RGB(255,150,0);
  delay(1000);
  RGB(0,255,0);
  delay(1000);
  RGB(0,255,50);
  delay(1000);
  RGB(0,0,255);
  delay(1000);
  RGB(50,0,200);
  delay(1000);
}


void RGB(int red, int green, int blue)
{
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);  
}