The Pololu AltIMU-10 v5 is a compact inertial measurement unit (IMU) and altimeter that combines a gyroscope, accelerometer, magnetometer, and barometric pressure sensor on a single board. It provides ten independent measurements — pressure, 3-axis rotation, 3-axis acceleration, and 3-axis magnetic field — enabling calculation of altitude and absolute orientation.

All sensors communicate over a single I²C interface, and the board includes an on-board 3.3V regulator with level-shifted I²C lines, making it compatible with both 3.3V and 5V systems.

Key Features

• 10 Degrees of Freedom – Gyroscope, accelerometer, magnetometer, and barometer in one compact board
• LSM6DS33 – 3-axis gyro (±125 to ±2000°/s) and 3-axis accelerometer (±2 to ±16g)
• LIS3MDL – 3-axis magnetometer (±4 to ±16 gauss) for compass heading
• LPS25H – Barometric pressure sensor (260–1260 mbar) for altitude measurement
• I²C Interface – Single bus for all sensors with configurable slave addresses
• On-Board Regulator – 3.3V output with level-shifted I²C lines
• Wide Supply Voltage – Operates from 2.5V to 5.5V

Specifications

• Dimensions – 25 × 13 × 3mm (1.0″ × 0.5″ × 0.1″)
• Operating Voltage – 2.5V to 5.5V
• Supply Current – 5mA
• Pin Spacing – 0.1″ (2.54mm) breadboard-compatible
• Interface – I²C with SA0 address select pin

Ideal For

• Drone and UAV navigation systems
• Robotics orientation and heading reference
• Altitude tracking and barometric data logging
• Motion sensing and gesture detection projects

Resources

• LSM6DS33 Arduino Library (GitHub)
• LIS3MDL Arduino Library (GitHub)
• LPS25H Arduino Library (GitHub)
• AHRS Example Code (GitHub)