CHR-6dm Attitude and Heading Reference System

CHR-6dm Attitude and Heading Reference System
Pololu item #: 1253 0 in stock

This product has been discontinued.

This product has been replaced by the CH Robotics UM6-LT Orientation Sensor.

This IMU from CH Robotics is an Attitude and Heading Reference System (AHRS) that combines three gyro axes, three accelerometer axes, three magnetic compass axes, and a powerful 32-bit ARM Cortex on one tiny, 2.7g board. An on-board Extended Kalman Filter (EKF) handles the tricky data fusion problem, reporting yaw, pitch, and roll angles at up to 300 Hz over a simple TTL serial interface. The CHR-6dm provides built-in routines for gyro bias calibration, and PC software is available for automatic soft and hard iron magnetometer calibration. The Cortex’s programming pins are exposed, and the firmware is open-source.

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Dimensions

Size: 1.0" x 0.96" x 0.1"
Weight: 2.7 g

General specifications

Interface: TTL serial
Baud: 115200 bps
Minimum operating voltage: 3.3 V
Maximum operating voltage: 12 V
Axes: pitch (x), roll (y), and yaw (z)
Measurement range: ±400°/s (gyro)
±3 g (accelerometer)
Supply current: 52 mA