Pololu
AltIMU-10 v5 Gyro, Accelerometer, Compass, and Altimeter (LSM6DS33, LIS3MDL, and LPS25H Carrier)
The Pololu AltIMU-10 v5 is a compact inertial measurement unit (IMU) and altimeter that combines a gyroscope, accelerometer, magnetometer, and barometric pre...
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
Jargon buster
Plain-language definitions for the technical terms used above.
- 3.3V regulator
- A 3.3V regulator is a power circuit that provides a steady 3.3 volts for parts that need that supply voltage. On a breakout board, it can let the sensor run safely even when the connected microcontroller or power source uses a higher voltage.
- Gyroscope
- A gyroscope measures rotation, such as how fast a board is turning around its X, Y, and Z axes. This matters for projects like gesture controls, balancing robots, and motion tracking where tilt or rotation changes need to be detected.
- IMU
- An Inertial Measurement Unit combines motion sensors to measure movement and orientation. It matters for asset tracking because it can detect movement, tilt, vibration, or changes in direction.
- magnetometer
- A sensor that measures magnetic fields, often used to work out compass direction. It matters because nearby magnets, motors, or metal objects can affect readings and may require calibration.
- UAV
- Unmanned Aerial Vehicle, such as a drone or autonomous aircraft. The term matters here because high-accuracy GNSS and RTK are often used when a flying robot needs precise position information.
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