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Arduino Introduction: Servo Control

by | Sep 12, 2019 | Beginner | 2 comments

Arduino Servo Control project

Do you want to use a servo but don't know how? In this project I will tell you everything you need to know about servo motors!

A servo motor is a motor that can make a precise movement using gears. This is done by comparing the control signal that he receives with the reference signal. If they are not equal to each other, the servo motor will move left or right until the difference signal is zero.

Now that you know what a servo is, you can proceed with the wiring and programming.

  • Level - Beginner 30% 30%
  • Duration - 10/15 Min 30% 30%
  • Costs - € 34,40 euros complete 30% 30%

Step 1: Requirements

1X Arduino UNO

1X Servo

3X M / M jumper wires

Step 2: Building and Wiring

Wiring this project is quite simple.

The 5V goes to the red wire of the servo, the ground goes to the brown wire of the servo and the PWM pin 9 goes to the yellow wire of the servo.

Now you have everything connected.

Step 3: Programming

 

You can now start programming. We use the Arduino IDE for programming.

Programming this project is quite simple. All you have to take into account is that you have to put the servo library in it. More information can be found in the piezo piano project.

Once the library has been added you can start programming.

Once your code is finished you can test it, your servo should go back and forth. But you can program it to make multiple movements, experiment!

 

#include  //insert library

Servo myservo1; //Name the servo

int pos = 0;  //Create variable for the position

void setup()
{
   Serial.begin(9600);  //Start serial monitor for communication
   while (!Serial);
   
   delay(1000);
   myservo1.attach(9);  //Tell where the servo is connected
   
   Serial.println(“Calibrate servo”);
   for(pos = 0; pos <= 180; position += 1)
   myservo1.write(0); //Turn the servo clockwise (find the far right point)
   delay(1000);
   myservo1.write(180); //Turn the servo counterclockwise (find the far left point)
   delay(1000);
   myservo1.write(90);  //Stop servo at left point / 180 degrees
   delay(1000);
   Serial.println(“Servo calibrated”);
   Serial.println(“————————-”);
   Serial.println(“Type the number of degrees you want the servo to go to. (1-180)”);
   Serial.println(“————————-”);
}

void loop()
{
   if (Serial.available()
   {
   int state = Serial.parseInt();    //Read serial input point.
      if (state >= 1 && state 181) //If the Serial In point is between 1 and 181 then it will move the motor there.
      {
        Serial.println(state);
        myservo1.write(state);
      }
   }
}

Step 4: Provide serial inputs

To operate the servo you must open the serial monitor. This explains what you need to specify to move the servo.

2 Comments

  1. Andre
    Andre the 09/12/2019 at 14:23

    Hi there.
    How can I control a Lego motor with Arduino Uno.
    What I wish my Lego motor could run L-R and R-R.
    I determine the speed with gears.

    Regards,
    Andre Onnes.

    Reply

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