Arduino Project

Arduino Servo Motor Control with Potentiometer V1

Course Introduction

This Arduino project uses a potentiometer to control a servo motor. As the potentiometer is turned, its analog value is read and mapped to an angle between 0° and 180°, which adjusts the servo’s position accordingly.

The angle and raw value are displayed via serial monitor, making it a simple and interactive demo of analog input to motor control.

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 WIFI	1	BUY
2	USB Type-C cable	1	×
3	Breadboard	1	BUY
4	Wires	Several	BUY
5	Digital Servo Motor	1	BUY
6	Potentiometer Sensor Module	1	BUY

Wiring

Servo_Control_bb.png__PID:0ab6554b-90ea-4301-ab6e-e5bfc35661b0

Common Connections:

Digital Servo Motor
Connect to breadboard’s positive power bus.
Connect to breadboard’s negative power bus. Connect to 3 on the Arduino.

Potentiometer Sensor Module
OUT: Connect to A0 on the Arduino.
GND: Connect to breadboard’s negative power bus.
VCC: Connect to breadboard’s red power bus.

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 potentiometer pin and the servo pin
const int potPin = A0;     // Potentiometer connected to analog pin A0
const int servoPin = 3;    // Servo connected to digital pin 3

// Create a servo object
Servo myServo;

void setup() {
  myServo.attach(servoPin);  // Attach the servo to pin 3
  Serial.begin(9600);        // Start serial communication
}

void loop() {
  int potValue = analogRead(potPin);                // Read analog value (0~1023)
  int angle = map(potValue, 0, 1023, 0, 180);        // Map to servo angle
  myServo.write(angle);                             // Set servo position

  // Debug output
  Serial.print("Potentiometer Value: ");
  Serial.print(potValue);
  Serial.print(" | Servo Angle: ");
  Serial.println(angle);

  delay(15); // Delay to smooth out the signal
}

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Arduino Project

Arduino Servo Motor Control with Potentiometer V1

Course Introduction

Required Components

Wiring

Common Connections:

Writing the Code

Arduino Project

Arduino Servo Motor Control with Potentiometer V1

Course Introduction

Required Components

Wiring

Common Connections:

Writing the Code

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