Arduino joystick servo control with OLED display – complete wiring setup

Control a Servo Motor with Joystick and OLED Display — Arduino Tutorial

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https://youtu.be/Un7QO-wNooA

Have you ever wanted to directly control a robot arm or servo-driven mechanism with your hands? In this tutorial, you’ll learn how to control a servo motor with joystick and OLED display using an Arduino. By the end, you’ll move two servo motors smoothly with a simple joystick and get real-time feedback on a small OLED screen. This project is beginner-friendly but also expandable for more complex robotics.

Components Needed

Here’s the bill of materials (BOM) for this project:

Component Quantity Notes
Arduino Uno (or Nano)  1 Main microcontroller board
Joystick module (XY + SW) 1 Two analog axes + push button
Servo motor (SG90 or MG90S) 2 Small hobby servos
OLED Display (SSD1306, I2C) 1 128×64 pixels, 3.3–5 V compatible
Breadboard + jumper wires – For wiring connections
External 5 V power supply 1 For stable servo power

Electrical Diagram and Wiring

Component Arduino Pin
Joystick VRx A0
Joystick VRy A1
Joystick SW D2 (optional)
Servo 1 Signal D9
Servo 2 Signal D10
OLED SDA A4
OLED SCL A5
Servo +V External 5 V
Servo GND Common GND

Control a Servo Motor with Joystick and OLED Display wiring diagram

Programming the Arduino


GitHub Repository: App and Code

#include <Servo.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
// OLED setup
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
// Servo setup
Servo servoX;
Servo servoY;
int joyX = A0;
int joyY = A1;
int servoXPin = 9;
int servoYPin = 10;
void setup() {
  servoX.attach(servoXPin);
  servoY.attach(servoYPin);
  // OLED init
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    for(;;); // Halt if display not found
  }
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
}
void loop() {
  int xVal = analogRead(joyX);
  int yVal = analogRead(joyY);
  int angleX = map(xVal, 0, 1023, 0, 180);
  int angleY = map(yVal, 0, 1023, 0, 180);
  servoX.write(angleX);
  servoY.write(angleY);
  // OLED output
  display.clearDisplay();
  display.setCursor(0,0);
  display.print("Servo X: "); display.println(angleX);
  display.print("Servo Y: "); display.println(angleY);
  display.display();
  delay(50); // small debounce
}

Tests

    • Move joystick left/right → Servo X moves.

    • Move joystick up/down → Servo Y moves.

    • OLED shows values correctly.

    Calibration tip: If servos twitch at idle, add a dead-zone around center joystick values (≈ 480–540).

    Troubleshooting checklist:

    • No display? Check SDA/SCL wiring.

    • Servos jitter? Use external 5 V supply.

    • Wrong angles? Swap joystick axis mapping.

Conclusion

You’ve built a working system to control a servo motor with joystick and OLED display. This simple setup can be extended into a robot arm, pan-tilt camera mount, or even a mini drawing robot. Share your project results in the comments!

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