GMU200‑BL Wireless BLE AHRS Sensor, Bluetooth MEMS Gyroscope Attitude Module for Robot Motion Capture

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Bluetooth IMU

GMU200-BL

Bluetooth Attitude Sensor

Bluetooth 5.1 wireless transmission
Supports VRU and AHRS
Real-time 3D dynamic measurement
Compact structure, easy installation
Integrated nine-axis sensor and temperature sensor

Product manual

Product Introduction

The GMU200-BL is a cost-effective miniature attitude reference system (AHRS) suitable for equipment requiring high dynamic balance capabilities, such as model aircraft, robots, agricultural machinery, engineering vehicles, and forklifts. This device collects sensor data, integrates a Kalman filter algorithm, and outputs attitude information in real time. It employs a three-axis accelerometer and a three-axis magnetometer to assist the three-axis gyroscope, and integrates temperature compensation technology, giving the product excellent stability and real-time performance across the entire attitude range, making it applicable to various motion attitude monitoring scenarios. In addition to outputting attitude data, this product provides nine-axis data, including three-axis acceleration, three-axis gyroscope, and three-axis magnetic field data. It also supports modification and expansion of system operating parameters to adapt to different application platforms.

This product uses Bluetooth wireless output, equipped with a Bluetooth 5.1 wireless transmission module and BLE protocol, and integrates 2.4GHz adaptive frequency hopping technology, enabling line-of-sight transmission up to 40 meters in unobstructed environments. It also supports Bluetooth wireless firmware upgrades via BLE DFU, effectively improving the flexibility of industrial deployment.

Performance Parameters

GMU200-BL	Parameter
Measurement Range	Roll ±180°, Pitch ±90°, Azimuth ±180° (In VRU mode, the initial value after Bluetooth disconnection and reconnection is 0°; in AHRS mode, the output is the magnetic heading angle)
Measurement Axis	XAxis/ YAxis/ ZAxis
Roll and Pitch Static Accuracy1)	±0.1° (@25℃)
Roll and Pitch Dynamic Accuracy (rms)	±0.25° (@25℃)
Magnetic Heading Accuracy (AHRS)	±1.5° (@25℃)
Gyroscope
Gyroscope Range (Adjustable)	±125°/s,±250°/s,±500°/s,±1000°/s,±2000°/s
Zero-Bias Stability (10s Smoothing)	10°/h
Zero-Bias Instabilit(Allan)	5°/h
Angle Random Walk Coefficient(Allan)	0.25°/sqrt(h)
Accelerometer
Acceleration Range (Settable)	±2g,±4g,±8g,±16g
Bias Stability (10s Mean)	0.1mg
Bias Instability(Allan)	0.05mg
Velocity Random Walk Coefficient (Allan)	0.005m/s/sqrt(h)
Magnetometer
Magnetometer range	±8Gauss
Resolution	<2.5mgauss
Bandwidth	<100Hz
Other
Zero-point temperature coefficient2)	±0.01°/℃ (@-20~65℃)
Sensitivity temperature coefficient3)	≤100ppm/℃ (@-20~65℃)
Power-on time	≤3.5S
Response time	0.01S
Electromagnetic compatibility	According to EN61000 and GBT17626
Receiver sensitivity	-96dBm
Transmit power	8dBm
Bluetooth transmission distance	40m (in an open, unobstructed area)
Usage time (fully charged battery)	Continuous operation for 6 hours, standby time for 83 days
Insulation resistance	≥100 megohms
Shock resistance	100g@11ms, triaxial (half-sine wave)
Vibration resistance	10grms,10~1000Hz
Casing material	ABS plastic housing
Weight	≤10g

Product Dimensions