Exercise 1: Turn a Servo Motor

Ryan Ferguson

Arduino Servo Lab

Instructions

1. Follow the diagram above to create your servo circuit.

2. Copy and paste the text below into your Arduino sketch. Run the sketch. 

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#include <Servo.h>


Servo myservo;  // create servo object to control a servo

// twelve servo objects can be created on most boards


int pos = 0;    // variable to store the servo position


void setup() {

  myservo.attach(11);  // attaches the servo on pin 9 to the servo object

}


void loop() {

  for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees

    // in steps of 1 degree

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(15);                       // waits 15ms for the servo to reach the position

  }

  for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(15);                       // waits 15ms for the servo to reach the position

  }

}