Ardunio FX leds đơn giản

int led[10] = {2,3,4,5,6,7,8,9,10,11};
int i;
int n;

void setup() {
  for (i = 1; i <= 11; i++) {
    pinMode(led[i], OUTPUT);
  }
}

void loop() {
  hieuung1();
  delay(100);
  hieuung2();
  delay(100);
  hieuung3();
  delay(100);
}

void denchop(int a) {
  for (int m = 0; m < 5; i++) {
    digitalWrite(a, HIGH);
    delay(30);
    digitalWrite(a, LOW);
    delay(30);
  }
}

void hieuung3() {
  for (i = 2; i < 12; i++) {
    digitalWrite(i, HIGH);
    digitalWrite(12 - i, HIGH);
    digitalWrite(i - 1, LOW);
    digitalWrite(12 - i + 1, LOW);
    delay(3*i);
  }
}

// Led chay tu 1 den 10 sau do chay nguoc lai
void hieuung1() {
  for (i = 1; i <= 11; i++) {
    digitalWrite(i - 1, LOW);
    digitalWrite(i, HIGH);
    delay(50);
  }
  for (i = 11; i > 0; i--) {
    digitalWrite(i + 1, LOW);
    digitalWrite(i, HIGH);
    delay(50);
  }
}

// Tao led chay lap day dan tu 0 den i - 1
void hieuung2() {
  i = 11;
  while(i > 0) {
    trans(1, i, 0);
    digitalWrite(i, HIGH);
    i--;
    delay(50);
  }
}

// Tao ham con led chay tu a den b va b ve a cho dieu kien la iSang
void trans(int a, int b, int isSang) {
  if (isSang == 0) {
    for (n = a; n < b; n++) {
    digitalWrite(n - 1, LOW);
    digitalWrite(n, HIGH);
    delay(50);
    }
  }
  else {
    for (n = b - 1; n >= a; n--) {
    digitalWrite(n + 1, LOW);
    digitalWrite(n, HIGH);
    delay(50);
    }
  }
}