Arduino IR Remote LED: Then Add a Servo Door (DIY Guide)

Table of Contents

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

Programming the Arduino




#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!