The MPU6050 sensor continuously detects tilt movements along the X-axis using its internal accelerometer and gyroscope. The Arduino Nano reads this sensor data, processes it, and maps the values to corresponding servo motor angles. Finally, the SG90 servo motor adjusts its position, moving the robot's head to mirror the orientation of the sensor.
Why Build This
Great introduction to motion tracking and inertial sensors
Fun and interactive robotics project for beginners and makers
Easy to build with widely available, low-cost components
Real-World Application
Motion-tracking and gesture-controlled systems are widely used in humanoid robotics, interactive museum displays, prosthetics, and immersive virtual reality controllers.
Skills You'll Learn
Interfacing MPU6050 accelerometer and gyroscope with Arduino
Controlling servo motors with PWM signals
Reading and mapping sensor tilt data to angles
Basic breadboard circuit assembly and wiring
Safety Precautions
Ensure your circuit is powered off before making any wiring adjustments to prevent short circuits. Double-check all power and ground connections to avoid damaging the Arduino Nano or the MPU6050 and SG90 servo modules. When using a battery power source, use proper battery handling and avoid drawing excessive current through the Arduino's 5V pin.
Technology Tags
ARDUINO NANO
MPU6050
SG90 SERVO
GYROSCOPE
ACCELEROMETER
ROBOTICS
Frequently Asked Questions
Yes, an Arduino Uno has the same microcontroller architecture and pin layout for I2C and PWM, so you can easily substitute it.
Connect VCC to 3.3V, GND to GND, SCL to A5, and SDA to A4 on the Arduino Nano.
You can power the SG90 servo via the 5V pin on the Arduino Nano, provided your USB connection supplies enough current. For multiple servos or larger loads, use an external power supply with a shared ground.
This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.
