Arduino：SG90伺服馬達實作

| Apr 16, 2021 min read

今天快速記錄下 SG90 伺服馬達的 arduino 程式碼。

Tinkercad 的模擬程式範例

PIN 腳位定義:

  • 橘色：控制訊號
  • 紅色：輸入電源 +(3~7.2V)
  • 棕色：共同接地

規格:

  • Weight: 9g
  • Dimension: 23×12.2x29mm
  • Stall torque: 1.8kg/cm(4.8v)
  • Gear type: POM gear set
  • Operating speed: 0.12 sec/60degree(4.8v)
  • Operating voltage: 4.8v~7.2V
  • Temperature range: 0℃_ 55℃
  • Dead band width: 1us
  • Power Supply: Through External Adapter
  • servo wire length: 25 cm
  • Servo Plug: JR (Fits JR and Futaba)
  • 轉動角度：最大90°

範例程式：

#include //載入函式庫，這是內建的，不用安裝

Servo myservo;  // 建立SERVO物件

void setup() {
  myservo.attach(9);  // 設定要將伺服馬達接到哪一個PIN腳
}

void loop() {   
  myservo.write(0);  //旋轉到0度，就是一般所說的歸零
  delay(1000);
  myservo.write(90); //旋轉到90度
  delay(1000);
  myservo.write(180); //旋轉到180度
  delay(1000);
  myservo.write(90);
  delay(1000);
}

/* Sweep

by BARRAGAN This example code is in the public domain.

modified 8 Nov 2013 by Scott Fitzgerald http://www.arduino.cc/en/Tutorial/Sweep */

#include int pos = 0;

Servo servo_9;

void setup() { servo_9.attach(9, 500, 2500);

}

void loop() { // sweep the servo from 0 to 180 degrees in steps // of 1 degrees for (pos = 0; pos <= 180; pos += 1) { // tell servo to go to position in variable ‘pos’ servo_9.write(pos); // wait 15 ms for servo to reach the position delay(15); // Wait for 15 millisecond(s) } for (pos = 180; pos >= 0; pos -= 1) { // tell servo to go to position in variable ‘pos’ servo_9.write(pos); // wait 15 ms for servo to reach the position delay(15); // Wait for 15 millisecond(s) } }


參考
--

*   [傑森創工 - \[Arduino範例\] SG90 Servo伺服馬達](https://blog.jmaker.com.tw/arduino-servo-sg90/)
    
*   [Tinkercad](https://www.tinkercad.com/) 的模擬程式
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