# LED模組

![](https://1275793585-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LaZQFBYOS3O0ksiEmR1%2F-MHKio0v9SYJ2oAM0Ry9%2F-MHKpVK0lmzSeCyGJl_z%2F01LED.jpg?alt=media\&token=d3fc3d46-b947-4d15-a808-13531615f1e1)

## **指令**

![](https://1275793585-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LaZQFBYOS3O0ksiEmR1%2F-MIHwYxVRtf1RRk2VxQb%2F-MIHx-R2gad43-v2FN8G%2FLesson_1_LED2.png?alt=media\&token=97e0357d-ab68-48e9-b4bc-2e5131ec24c4)

## **對應的**Arduino 語法

```
  digitalWrite(4, 1);
```

### 範例 BlocklyDuino 積木畫布

將4號腳位的電位拉低、拉高，每一秒鐘會切換LED的亮暗一次。

![](https://1275793585-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LaZQFBYOS3O0ksiEmR1%2F-MIHwYxVRtf1RRk2VxQb%2F-MIHwsGisl6rxlEe9YyA%2FLesson_1_LED.png?alt=media\&token=3709a03d-a248-47ef-96cb-bc436b935b96)

## Arduino 程式

```
void setup()
{
  pinMode(4, OUTPUT);

}


void loop()
{
  digitalWrite(4, 1);
  delay(1000);
  digitalWrite(4, 0);
  delay(1000);
}
```

## 影片教學:

{% embed url="<https://www.youtube.com/watch?v=KFWztn425cA>" %}