# 舵機

![](https://1275793585-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LaZQFBYOS3O0ksiEmR1%2F-Lx00XGnqAn7JxlS80YM%2F-Lx03HDEYQYVpc6bF_GN%2F01.png?alt=media\&token=142c357a-7586-424b-84a0-188cf182353f)

## 專案說明

使用「科易KEYES Arduino UNO R3 開發板」連接「舵機」, 控制舵機順時針轉和逆時針轉。

此**舵機**包含於「[洞洞兩教學材料包 Education Kit 002](https://www.robotkingdom.com.tw/product/rk-education-kit-002/)」內。

## KEYES Arduino UNO R3電路圖

* [KEYES Arduino UNO R3](https://www.robotkingdom.com.tw/product/keyes-uno-r3/) 
* 通用型彩色Sensor shield v5.0感測器擴充板
* 舵機

**舵機**是**數位訊號**輸出，脈衝寬度調變(Pulse Width Modulation)訊號輸出， 可以接「D3、D5、D6、D9、D10」的KEYES Arduino UNO R3訊號端上。 本範例連接到「**D3**」

![](https://1275793585-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LaZQFBYOS3O0ksiEmR1%2F-Lx00XGnqAn7JxlS80YM%2F-Lx03cV3AoD9e0e_VQ2n%2F02.png?alt=media\&token=860356d7-d868-4f73-a624-4bcf3ad89056)

## Arduino 程式

由於舵機是函式庫型模組，在Arduino上有內建的函式庫即可使用。

控制舵機順時針轉和逆時針轉。

產生出的 Arduino 程式如下

```c
#include <Servo.h>

Servo myservo;  

int pos = 0;    

void setup() {
  myservo.attach(3); 
}

void loop() {
  for (pos = 0; pos <= 180; pos += 1) { 
    myservo.write(pos);             
    delay(15);                       
  }
  for (pos = 180; pos >= 0; pos -= 1) { 
    myservo.write(pos);              
    delay(15);                      
  }
}

```


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