Controlling a Servo Motor with ESP32: A Simple Guide

2 min readJun 27, 2024

Connecting a servo motor to an ESP32 microcontroller can be a bit challenging due to compatibility issues with the standard servo libraries.

However, we found a library that works smoothly with the ESP32. In this article, we’ll go through the steps to connect a servo motor to an ESP32, including the circuit diagram, library setup, and sample code.

Components Required

Circuit Diagram

Library Setup

To control the servo motor, we will use a specific library that is compatible with the ESP32.

Follow these steps to install the library,

Open the Arduino IDE.
ESP32 Version Used: 2.0.15
Go to Sketch > Include Library > Manage Libraries
In the Library Manager, search for “ServoESP32Fix”.
Install the “ ServoESP32Fix “ library.
Or else you can download through the link.

Sample Code

#include <Servo.h>

static const int servoPin = 2;

Servo servo1;

void setup() {
    Serial.begin(115200);
    servo1.attach(servoPin);
}

void loop() {
    for (int posDegrees = 0; posDegrees <= 180; posDegrees++) {
        servo1.write(posDegrees);
        Serial.println(posDegrees);
        delay(20);
    }

    for (int posDegrees = 180; posDegrees >= 0; posDegrees--) {
        servo1.write(posDegrees);
        Serial.println(posDegrees);
        delay(20);
    }
}

Explanation

Library Inclusion: We include the ‘ServoESP32Fix’ library, which provides functions to control the servo motor.
Pin Configuration: We define the pin where the servo is connected (‘servoPin’)
Servo Initialization: In the ‘setup’ function, we attach the servo to the specified pin.
Servo Control Loop: In the ‘loop’ function, we move the servo from 0 to 180 degrees and back to 0 degrees, printing the current position to the Serial Monitor for debugging purposes.

Conclusion

Using the ‘ServoESP32Fix’ library, you can smoothly control a servo motor with an ESP32.

This setup allows for precise control over the servo’s position, making it ideal for various applications in robotics, automation, and more.

Feel free to experiment with different servo motors and configurations to suit your project’s needs.

Contact us for any consultations or projects related to any Servo.

Email: udara@protonest.co

Protonest for more details.

Protonest specializes in transforming IoT ideas into reality. We offer prototyping services from concept to completion. Our commitment ensures that your visionary IoT concepts become tangible, innovative, and advanced prototypes.

Our Website: https://www.protonest.co/

If you enjoyed this article and would like to show some support, consider buying me a coffee on Ko-Fi.

Your support not only helps me keep creating content like this but also fuels me! ☕️📚

Thank you for being an amazing reader!

Here’s my Ko-Fi link: https://ko-fi.com/udarakumarasena

Cheers!