利用74HC595实现的流水灯 Arduino

int big = 2;

int push = 3;

int datain = 4;

void setup()

{

  Serial.begin(9600);

  pinMode(big, OUTPUT);

  pinMode(push, OUTPUT);

  pinMode(datain, OUTPUT);

}

void loop()

{

  int num=1;

  for (int i = 0; i < 8; i++)

  {

    Serial.println("kaishi");

    digitalWrite(big, LOW);

    int data = num;

    //data分别为 1 2 4 8 16

    //转换为二进制后分别取出每一位的值并写入到寄存器中

    for (int j = 0; j < 8; j++)

    {

      digitalWrite(push, LOW);

      digitalWrite(datain, data & 1);

      data = data >> 1;

      digitalWrite(push, HIGH);

    }

    digitalWrite(big, HIGH);

    num = num<<1;

    delay(1000);

  }

}

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利用74HC595实现的流水灯 Arduino

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