AltIMU-10 v5 Gyro, Accelerometer, Compass, and Altimeter (LSM6DS33, LIS3MDL, and LPS25H Carrier)

Description

The Pololu AltIMU-10 v5 is a compact (1.0″ × 0.5″) board that combines ST’s LSM6DS33 3-axis gyroscope and 3-axis accelerometer, LIS3MDL 3-axis magnetometer, and LPS25H digital barometer to form an inertial measurement unit (IMU) and altimeter; we therefore recommend careful reading of the LSM6DS33 datasheet (1MB pdf), LIS3MDL datasheet (2MB pdf), and LPS25H datasheet (1MB pdf) before using this product. These sensors are great ICs, but their small packages make them difficult for the typical student or hobbyist to use. They also operate at voltages below 3.6 V, which can make interfacing difficult for microcontrollers operating at 5 V. The AltIMU-10 v5 addresses these issues by incorporating additional electronics, including a voltage regulator and a level-shifting circuit, while keeping the overall size as compact as possible. The board ships fully populated with its SMD components, including the LSM6DS33, LIS3MDL, and LPS25H, as shown in the product picture.

The AltIMU-10 v5 is also pin-compatible with the MinIMU-9 v5 and offers the same functionality augmented by a digital barometer that can be used to obtain pressure and altitude measurements. It includes a second mounting hole and is only 0.2″ longer than the MinIMU-9 v5. Any code written for the MinIMU-9 v5 should also work with the AltIMU-10 v5.

Features

• Dimensions: 1.0″ × 0.5″ × 0.1″ (25 mm × 13 mm × 3 mm)
• Weight without header pins: 0.8 g (0.03 oz)
• Operating voltage: 2.5 V to 5.5 V
• Supply current: 5 mA
• Output format (I²C):
  • Gyro: one 16-bit reading per axis
  • Accelerometer: one 16-bit reading per axis
  • Magnetometer: one 16-bit reading per axis
  • Barometer: 24-bit pressure reading (4096 LSb/mbar)
• Sensitivity range:
  • Gyro: ±125, ±245, ±500, ±1000, or ±2000°/s
  • Accelerometer: ±2, ±4, ±8, or ±16 g
  • Magnetometer: ±4, ±8, ±12, or ±16 gauss
  • Barometer: 260 mbar to 1260 mbar (26 kPa to 126 kPa)