const int ledPin = 5;
const int analogInPin = A0;
const int rLedPin = 2;
const int gLedPin = 4;
const int bLedPin = 3;

int i;
int val;
void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  pinMode(rLedPin, OUTPUT);
  pinMode(gLedPin, OUTPUT);
  pinMode(bLedPin, OUTPUT);
  digitalWrite(rLedPin, LOW);
  digitalWrite(gLedPin, LOW);
  digitalWrite(bLedPin, LOW);

}

void loop() {
  // digitalWrite(ledPin, HIGH);
  // 控制亮度
  val = analogRead(analogInPin);
  val = val/4;
  Serial.print("brightness:");
  Serial.println(val);
  analogWrite(ledPin, val);
  delay(10);
  // rgb灯闪烁
  for(i=0;i<10;i++){
    digitalWrite(rLedPin, HIGH);
    delay(i*100);
    digitalWrite(rLedPin, LOW);
    delay(i*100);
  }
  for(i=0;i<10;i++){
    digitalWrite(gLedPin, HIGH);
    delay(i*100);
    digitalWrite(gLedPin, LOW);
    delay(i*100);
  }
  for(i=0;i<10;i++){
    digitalWrite(bLedPin, HIGH);
    delay(i*100);
    digitalWrite(bLedPin, LOW);
    delay(i*100);
  }
  
}