Servo Motor Control with Arduino | SG90 Wiring, Code & Working Explained

Learn how to control an SG90 servo motor with Arduino in this complete beginner-friendly tutorial.

In this Arduino servo motor tutorial, you’ll learn how a servo motor works internally, how it differs from a stepper motor, and how to control its position precisely using PWM signals.

This video covers everything you need to know about interfacing an SG90 servo motor with Arduino, including wiring, code explanation, servo pulse control, and practical examples using a potentiometer and dual servo setup.

What you’ll learn in this tutorial:

✅ What is a servo motor and how it works
✅ Servo motor vs stepper motor
✅ Open-loop vs closed-loop control systems
✅ Internal working of the SG90 servo motor
✅ Servo motor feedback mechanism explained
✅ Servo motor PWM pulse control
✅ Understanding pulse width and 50Hz control signals
✅ SG90 servo motor power requirements
✅ How to wire a servo motor with Arduino
✅ Why capacitors are important for servo stability
✅ Arduino Servo library explained
✅ attach(), write(), writeMicroseconds(), read(), and detach() functions
✅ Control servo position using a potentiometer
✅ Control two servo motors in opposite directions
✅ Complete Arduino code explanation for beginners

Hardware Used:

• Arduino Uno
• SG90 Servo Motor
• 10K Potentiometer
• Capacitor (100µF / 470µF recommended)
• Breadboard
• Jumper Wires

This Arduino servo motor project is perfect for beginners interested in robotics, automation, embedded systems, and motion control projects.

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