Servo Library and Angular Position Control

Servo motors are rotary actuators that can be precisely controlled to position a shaft to a specific angle. Arduino provides a convenient library for controlling servo motors, simplifying the programming process. This guide will explore the Servo library and how to use it to control the angular position of servo motors.

Servo Library

The Servo library is a pre-installed library in the Arduino IDE that provides functions for controlling servo motors. It abstracts away the complexities of PWM generation and timing, making it easy to use for beginners.

Basic Usage

Include the Library: Include the Servo library at the beginning of your Arduino code.
Create a Servo Object: Create a Servo object and specify the pin connected to the servo.
Attach the Servo: Use the attach() function to attach the Servo object to the specified pin.
Write Position: Use the write() function to set the desired angular position of the servo. The position is specified in degrees, typically ranging from 0 to 180.

Example

C++

#include <Servo.h>

Servo myServo;

void setup() {
  myServo.attach(9); // Attach the servo to pin 9
}

void loop() {
  for (int i = 0; i <= 180; i++) {
    myServo.write(i);
    delay(15);
  }

  for (int i = 180; i >= 0; i--) {
    myServo.write(i);
    delay(15);
  }
}