9-axis attitude and heading reference system BDS450

Product Introduction
The BDS450 is a Bluetooth-enabled dynamic attitude sensor designed for high-dynamic applications such as model aircraft, robots, agricultural and construction machinery, and forklifts. It integrates a 3-axis accelerometer, a 3-axis gyroscope and a temperature sensor, and uses temperature compensation together with a Kalman filtering algorithm to deliver accurate real-time attitude (roll, pitch, azimuth) and raw sensor data. The unit maintains stability and fast response across a wide range of motion conditions and supports parameter adjustment and functional expansion for integration into diverse platforms. Bluetooth 5.1 (BLE) with 2.4 GHz adaptive frequency hopping provides robust wireless links and BLE DFU supports wireless firmware upgrades. The device is solar-powered and rated IP67 for harsh environments.

Key features

• Solar powered
• Kalman filtering algorithm
• Update rate up to 100 Hz
• Real-time 3D dynamic measurement (roll, pitch, azimuth)
• Bluetooth 5.1 wireless transmission (BLE protocol, 2.4 GHz adaptive frequency hopping), DFU firmware upgrade
• Integrated nine-axis sensor suite and temperature sensor
• IP67 waterproof / dustproof rating

Performance Parameters
Model: BDS450
Measurement range: Roll ±180°, Pitch ±90°, Azimuth ±180° (initial 0° after Bluetooth disconnection/reconnection)
Measurement axes: X / Y / Z
Roll & Pitch static accuracy (@25°C): ±0.05°
Roll & Pitch dynamic accuracy (RMS @25°C): ±0.1°
Gyroscope range: ±300°/s
Gyroscope zero-bias stability (10 s smoothing): 8.5°/h
Gyroscope angle random walk (Allan): 0.25°/√h
Acceleration range: ±8 g
Acceleration zero-bias stability (10 s mean): 0.1 mg
Acceleration zero-bias instability (Allan): 0.005 mg
Velocity random walk (Allan): 0.005 m/s/√h
Zero-point temperature coefficient (working −20–70°C): ±0.01°/°C
Sensitivity temperature coefficient (working −20–70°C): ≤100 ppm/°C
Power-on time: ≤3.5 s
Response time: 0.01 s
Electromagnetic compatibility: Complies with EN61000 and GBT17626
Receiver sensitivity: −96 dBm
Transmit power: 8 dBm
Bluetooth transmission distance: Up to 50 m (open, line-of-sight)
Bluetooth frequency band: 2405–2480 MHz (16 channels)
Usage time (fully charged): Approximately 20 days (25°C, 8 h operation/day, 16 h sleep/day, no interim charging)
Insulation resistance: ≥100 MΩ
Shock resistance: 100 g @ 11 ms, triaxial (half-sine)
Vibration resistance: 10 g rms, 10–1000 Hz
Waterproof rating: IP67
Casing material: PPS plastic
Weight: ≤230 g