Arduino Project

Arduino Butterfly with Servo Motors

Kit purchase

Looking for parts? Check out our all-in-one kits below — packed with components, beginner-friendly guides, and tons of fun.

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Name	Includes Arduino board	PURCHASE LINK
Ultimate Sensor Kit	Arduino Uno R4 Minima	BUY
Elite Explorer Kit	Arduino Uno R4 WiFi	BUY
3 in 1 Ultimate Starter Kit	Arduino Uno R4 Minima	BUY
Universal Maker Sensor Kit	×	BUY

Course Introduction

In this lesson, we will learn how to use two Servo Motors with the Arduino Board to create a butterfly wing flapping effect.

The two servos rotate in opposite directions to move the wings up and down, simulating a butterfly’s flapping motion.

By adjusting the rotation range and speed, we can customize the wing movements.

Note

If this is your first time working with an Arduino project, we recommend downloading and reviewing the basic materials first.

1.1 Install Arduino IDE(Important)
1.2 Introduction of Arduino IDE

Required Components

In this project, we need the following components:

SN	COMPONENT INTRODUCTION	QUANTITY	PURCHASE LINK
1	Arduino UNO R4 Minima	1	BUY
2	USB Type-C cable	1	×
3	Breadboard	1	BUY
4	Wires	Several	BUY
5	Digital Servo Motor	2	BUY

Wiring

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Common Connections:

Digital Servo Motor 1
Connect to breadboard’s positive power bus.
Connect to breadboard’s negative power bus.
Connect to 9 on the Arduino.

Digital Servo Motor 2
Connect to breadboard’s positive power bus.
Connect to breadboard’s negative power bus.
Connect to 10 on the Arduino.

Writing the Code

Note
You can copy this code into Arduino IDE.
Don’t forget to select the board(Arduino UNO R4 Minima/WIFI) and the correct port before clicking the Upload button.

#include <Servo.h>

// Define the servo pins
const int LEFT_SERVO_PIN = 9;
const int RIGHT_SERVO_PIN = 10;

// Create servo objects
Servo leftServo;
Servo rightServo;

// Set the center position
const int CENTER_ANGLE = 90;

// Set the wing movement range
const int FLAP_RANGE = 35;

// Set the movement speed
const int FLAP_DELAY = 11;

// Move both wings in opposite directions
void moveWings(int offset) {
  int leftAngle = CENTER_ANGLE + offset;
  int rightAngle = CENTER_ANGLE - offset;

  leftServo.write(leftAngle);
  rightServo.write(rightAngle);
}

void setup() {
  // Attach the servos
  leftServo.attach(LEFT_SERVO_PIN);
  rightServo.attach(RIGHT_SERVO_PIN);

  // Move wings to the center position
  moveWings(0);

  delay(1000);
}

void loop() {
  // Slowly raise the wings
  for (int angle = -FLAP_RANGE; angle <= FLAP_RANGE; angle++) {
    moveWings(angle);
    delay(FLAP_DELAY);
  }

  // Slowly lower the wings
  for (int angle = FLAP_RANGE; angle >= -FLAP_RANGE; angle--) {
    moveWings(angle);
    delay(FLAP_DELAY);
  }
}

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Arduino Project

Arduino Butterfly with Servo Motors

Kit purchase

Course Introduction

Required Components

Wiring

Common Connections:

Writing the Code

Arduino Project

Arduino Butterfly with Servo Motors

Kit purchase

Course Introduction

Required Components

Wiring

Common Connections:

Writing the Code

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