#include <Arduino.h>

#define NUM_LEDS 10  // LED的數量
#define DELAY_TIME 50  // 動畫更新間隔（毫秒）

int ledPins[NUM_LEDS] = {13, 12, 14, 27, 26, 25, 33, 2, 4, 5}; // LED的接腳
int brightness[10] = {0,0,10, 35, 70, 105, 140, 175, 210, 245}; // LED的亮度

void setup()
{
  for(int i=0;i<NUM_LEDS;i++)
  {
    pinMode(ledPins[i], OUTPUT);
  }
}

void loop()
{
  int i,j,k;
  for(i = 0; i < 12; i++){
    k = 0;
    analogWrite(ledPins[i],brightness[10-k]);
    for(j = i-1;j > -1;j--){
      analogWrite(ledPins[j],brightness[10-k]);
      k++;
    }
    delay(50);
  }
  for(i = 2; i < 10; i++){
    analogWrite(ledPins[i],0);
    k=2;
    for(j = i+1; j < 10; j ++){
      analogWrite(ledPins[j],brightness[k]);
      k++;
    }
    delay(50);
  }
}