Nine-axis AHRS module fusing accelerometer, gyroscope and magnetometer with Kalman filtering to output 0.05 degree roll and pitch accuracy. Ranges reach plus/minus 16 g and 2000 degrees per second, with 200 Hz serial output from a 1 g, 15 by 15 mm board.
| Type | MEMS AHRS IMU (9-axis) |
| Gyro Range | +/-2000 deg/s (16-bit) |
| Accel Range | +/-16 g (16-bit, 0.01 g accuracy) |
| Heading Accuracy | 1 deg after magnetic calibration (0.5 deg static, 6-axis mode) |
| Roll/Pitch Accuracy | 0.05 deg |
| Output Rate | 0.2-200 Hz adjustable |
| Interface | TTL serial (4800-230400 bps) |
| Weight | 1 +/-0.1 g |
| Dimensions | 15.24 x 15.24 x 2.54 mm |
| Power | 3.3-5 V, ~11.5 mA @5 V |
Reference specifications for the listed model. Options, test conditions and integration requirements should be confirmed for your selected configuration.
WitMotion is a Shenzhen maker of compact AHRS and IMU modules widely used by developers and universities. Modules such as WT901 and HWT901B fuse accelerometer, gyroscope, magnetometer and barometer data with Kalman filtering, offer 0.05-degree roll and pitch accuracy, and output over TTL, RS-485, USB or Bluetooth.
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