The GY-801 10-DOF 9-Axis Altitude Indicator Module is an all-in-one motion and environmental sensing board combining gyroscope, accelerometer, magnetometer, and barometric pressure/temperature sensors. Designed for drones, robotics, motion tracking, navigation, and altitude sensing, this module provides rich data for orientation, heading, and altitude calculations with an easy microcontroller interface.

Key Features:

• 10 Degrees of Freedom (10-DOF): Combines motion and environmental sensors for full 3D orientation and altitude sensing
• 9-Axis Motion Tracking:
  • 3-axis gyroscope (L3G4200D)
  • 3-axis accelerometer (ADXL345)
  • 3-axis magnetometer (HMC5883L)
• Barometric Pressure & Temperature: BMP180 sensor for altitude estimation and environmental monitoring
• Compact & Integrated: All sensors on one PCB with standard pins
• Standard Interface: I²C communication for easy connection with microcontrollers (Arduino, ESP32, STM32, Raspberry Pi etc.)
• Low Power: Suitable for battery-powered and mobile systems

Specifications:

• Gyroscope: L3G4200D (3-axis angular rate sensor)
• Accelerometer: ADXL345 (3-axis acceleration sensor)
• Magnetometer: HMC5883L (3-axis digital compass)
• Barometer / Altitude Sensor: BMP180 (pressure/temperature)
• Degrees of Freedom: 10 (3 gyro + 3 accel + 3 mag + pressure)
• Interface: I²C (SDA, SCL)
• Operating Voltage: 3.3 - 5V (logic)
• Pins: VCC, GND, SDA, SCL, (INT/others vary by board)

Applications:

• 3D orientation and motion tracking
• Altitude and environmental sensing in drones/UAVs
• Robotics navigation and IMU systems
• Wearable motion analysis
• Stabilization and control systems
• Heading and tilt measurement