Item specifics
Description
GY-521 MPU-6050 Module Product Overview
The GY-521 MPU-6050 module is the world's first integrated 6‑axis motion processing component, featuring the InvenSense MPU-6000 series chip that combines a 3‑axis MEMS gyroscope and a 3‑axis MEMS accelerometer for 6‑degree‑of‑freedom (6DOF) motion sensing. The built‑in Digital Motion Processor (DMP) hardware acceleration engine outputs fused rotation matrices, quaternions, or Euler angles, drastically reducing the processing load on the host MCU. It supports both I²C (up to 400kHz) and SPI (up to 20MHz) communication interfaces and operates from 3‑5V thanks to an onboard low‑dropout regulator. The chip is housed in an ultra‑compact 4×4×0.9mm QFN package; the module PCB uses gold‑plated pads and machine soldering for reliable quality. Available in unsoldered and pre‑soldered header versions. Ideal for quadcopters, self‑balancing vehicles, robot attitude detection, and gesture interaction.
GY-521 MPU-6050 Module Core Features
6‑Axis Motion Sensing： Combines a 3‑axis gyroscope (angular velocity) and a 3‑axis accelerometer (linear acceleration), eliminating cross‑axis errors associated with discrete component solutions
High‑Resolution ADC： Built‑in 16‑bit ADCs output 16‑bit data; gyroscope sensitivity of 131 LSBs/°/sec for fine angular rate detection
Programmable Ranges： Gyroscope ±250, ±500, ±1000, ±2000°/sec; Accelerometer ±2g, ±4g, ±8g, ±16g – adaptable for slow attitude tracking to high‑speed rotation
Digital Motion Processor (DMP)： Hardware‑accelerated sensor fusion outputs quaternions or Euler angles, eliminating the need for complex Kalman or complementary filter development
Dual Communication Interfaces： Supports I²C (400kHz Fast‑Mode) and SPI (up to 20MHz). A secondary I²C port can connect external magnetometers for 9‑axis fusion output
Wide Voltage & Low Power： Chip VDD 2.5V/3.0V/3.3V ±5%; module onboard regulator accepts 3‑5V input. Gyroscope: 5mA active / 5µA standby; Accelerometer: 350µA active / 20µA@10Hz sleep mode – ideal for battery‑powered devices
Integrated Temperature Sensor： Digital temperature sensor for calibration and ambient monitoring
Programmable Interrupts： Supports gesture recognition, pan, zoom, roll, free‑fall, high‑G, zero‑motion, tap, shake detection – enabling event‑driven designs
High Shock Tolerance： 10,000 g shock survivability, suitable for harsh motion environments
Ultra‑Compact & Gold‑Plated PCB： Chip 4×4×0.9mm QFN; module PCB uses gold‑plated pads, machine soldered, 2.54mm pitch. Available with or without pre‑soldered headers
GY-521 MPU-6050 Module Applications
Quadcopters / Drones： Flight controller attitude estimation (pitch, roll, yaw) using DMP‑output quaternions for stable flight
Self‑Balancing Two‑Wheel Vehicles： Real‑time tilt angle detection with PID control for dynamic balance
Robot Attitude Control： Motion sensing for humanoid robots, robotic arms, inspection robots
VR/AR & Game Controllers： Motion tracking for immersive interaction and gesture recognition
Smartphones & Tablets： Auto‑rotate, pedometers, electronic image stabilisation (EIS), augmented reality (AR)
Pedestrian & Inertial Navigation： Dead‑reckoning and motion tracking when GPS signal is weak
Wearable Health Monitors： Gait analysis and activity recognition in fitness trackers
Education & Maker Projects： Arduino, ESP32, STM32 motion sensing experiments and competition entries
GY-521 MPU-6050 Module Key Advantages
World’s First Integrated 6‑Axis Chip – Mature & Reliable： MPU‑6000 series eliminates cross‑axis errors and saves PCB space. Massive open‑source community support lowers development barriers
DMP Hardware Fusion Simplifies Algorithms： No need to write complex Kalman or complementary filters – directly read quaternions/Euler angles over I²C/SPI, cutting development time by over 50%
Dual I/O Interfaces for Flexibility： Choose I²C (400kHz) or high‑speed SPI (20MHz); secondary I²C port allows 9‑axis fusion with external magnetometer
Wide Voltage & 3.3V/5V Compatibility： Onboard regulator accepts 3‑5V, works with 3.3V (ESP32, STM32) and 5V (Arduino UNO, 8051) systems – no level shifters needed
Ultra‑Low Power, Battery‑Friendly： Gyro 5mA, accelerometer 350µA, sleep mode as low as 20µA@10Hz – perfect for wearables and portable devices
High‑Precision 16‑Bit Output： 131 LSBs/°/sec sensitivity ensures accurate angular rate detection; 16‑bit ADCs deliver high resolution
Rich Programmable Interrupts： Tap, free‑fall, motion detection can wake MCU from sleep, dramatically reducing system power consumption
Gold‑Plated PCB + Machine Soldering： Corrosion‑resistant gold pads and automated SMT assembly ensure long‑term reliability
Two Configurations for Easy Integration： Unsoldered headers for custom wiring or angled mounting; pre‑soldered straight headers for plug‑and‑play use on breadboards or female pin headers
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FAQ:
What is the GY‑521 MPU‑6050 module and its key specifications?
The GY‑521 is a breakout board for the MPU‑6050, a 6‑axis motion tracking device that combines a 3‑axis accelerometer and a 3‑axis gyroscope in a single chip. Key specs: accelerometer full‑scale range ±2g, ±4g, ±8g, ±16g (programmable), gyroscope range ±250, ±500, ±1000, ±2000 dps, on‑chip 16‑bit ADCs, a built‑in Digital Motion Processor (DMP) for sensor fusion, and communication via I2C (up to 400 kHz). The module includes a 3.3 V regulator and level shifters, so it can be powered from 3 V to 5 V (VCC pin), while the I2C lines are 3.3 V logic tolerant. It is the go‑to IMU for drones, robots, self‑balancing platforms, and motion‑based projects.
How do I connect the GY‑521 to an Arduino Uno or ESP32?
Wiring uses I2C. Connect VCC → 3.3 V or 5 V (the module regulates down to 3.3 V internally), GND → GND, SDA → A4 (Uno) or GPIO21 (ESP32), SCL → A5 (Uno) or GPIO22 (ESP32). The INT pin is optional for interrupt‑driven data reading. For 5 V boards like Arduino Uno, the module is safe because the on‑board level shifters handle the I2C lines. For ESP32 (3.3 V logic), the connection is native and requires no level shifter. After wiring, run an I2C scanner to confirm the sensor appears at address 0x68 or 0x69.
What is the default I2C address, and how can I change it?
The default I2C address is 0x68 when the AD0 pin is pulled low (the module has a solder jumper or pull‑down resistor by default). To change the address to 0x69, connect AD0 to VCC (3.3 V). On most GY‑521 boards, you can bridge the AD0 pad on the back or simply wire the AD0 pin high. This allows you to connect two MPU‑6050s on the same I2C bus without conflict.
What are the measurement ranges of the accelerometer and gyroscope?
The accelerometer offers four programmable full‑scale ranges: ±2g, ±4g, ±8g, ±16g. The gyroscope also has four ranges: ±250, ±500, ±1000, ±2000 degrees per second (dps). Both sensors deliver 16‑bit ADC resolution, giving a sensitivity of e.g., 16384 LSB/g at ±2g and 131 LSB/dps at ±250 dps. The range can be changed in software using the MPU6050 library to match your application's expected dynamics.
What is the DMP (Digital Motion Processor), and how do I use it?
The DMP is an on‑chip processor that performs 6‑axis sensor fusion (accelerometer + gyroscope) to output quaternions, Euler angles, and rotation matrix. This offloads complex math from the main microcontroller. To use it, you typically employ the MPU6050 library by Electronic Cats or the jrowberg/i2cdevlib library, which has built‑in DMP support. After initialization, you can read yaw, pitch, roll directly. Keep the module still during the DMP initialization for accurate calibration.
What Arduino/ESP32 libraries are available for the MPU‑6050?
The most popular libraries are: 1) Electronic Cats MPU6050 (simple, lightweight, supports DMP and non‑DMP modes). 2) i2cdevlib by jrowberg (very feature‑rich, includes full DMP support and graphical visualizer). 3) Adafruit MPU6050 (unified sensor library, part of the Adafruit ecosystem). For a quick start, install the MPU6050 library from the Library Manager, call mpu.initialize(), then read acceleration and gyro data with mpu.getMotion6() or use DMP functions.
Can I use SPI with the GY‑521 module?
The MPU‑6050 chip itself supports SPI, but the GY‑521 breakout board typically does not bring out the SPI pins (CS, SDO, etc.). It is designed for I2C only. All communication must be via the I2C bus. If you need SPI, you would need a different module (e.g., the raw chip on a custom board) or check if your specific board revision has the SPI pins broken out. For almost all hobbyist projects, the I2C interface is more than sufficient.
How do I calibrate the MPU‑6050 to reduce drift?
Gyroscopes suffer from bias drift; accelerometers need gravity calibration. The common calibration method is to keep the sensor perfectly still and horizontal during startup, take several hundred samples, compute the average offsets, and then subtract them in code. Many libraries (e.g., i2cdevlib) include a calibration sketch that outputs the offset values to be stored in EEPROM. For the accelerometer, you also correct for the gravity vector so that 1g reads exactly along the z‑axis when flat. Proper calibration dramatically improves heading (yaw) stability.
What is the power supply requirement and current consumption of the GY‑521?
The module accepts 3 V – 5 V on the VCC pin, thanks to the on‑board 3.3 V LDO regulator. The MPU‑6050 itself operates at 3.3 V. Current consumption is approximately 3.9 mA in normal mode (gyro + accel) and less than 5 μA in sleep mode. The on‑board regulator and pull‑ups add a small extra load. This low power draw makes it suitable for battery‑powered robots and wearables. If you power the module from 5 V, the regulator dissipates a bit more heat, so for low‑power projects, power it directly with 3.3 V from a regulated supply.
What are the most typical applications of the GY‑521 MPU‑6050?
The GY‑521 is everywhere in the maker and robotics community. It is used in quadcopter/drone flight controllers, self‑balancing robots (two‑wheeled), smartphone gimbal stabilizers, pedometers and gesture recognition, VR head tracking, fall detection in elderly care devices, and tilt‑compensated compasses. Its combination of accelerometer, gyroscope, and DMP in one tiny board makes it the default entry point for anyone learning inertial sensing.