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Description
The sensor consists of a 3-axis accelerometer, gyroscope and magnetometer. It can act as an AHRS system. Unlike IMU modules, which only provide raw data, the UM7, using a built-in microcontroller, processes the sensor data using a Kalman filter (EKF) to calculate the position of the headset 500 times per second. This version includes a housing.
We offer two versions of the module, with and without housing.
Power supply to the module and serial communication can be done via a 5-pin connector using the included cable. Two 6-pin connectors provide additional functionality, such as connecting a GPS receiver.
Functions
- High measurement stability
- Adjustable EKF filter for better performance depending on the application
- Synchronized data with external GPS module
- Calibration and compensation of temperature compensation for accelerometer, gyroscope and magnetometer
- The magnetometer can be configured as soft or hard via the CHR serial software
Communication
- Output:
- Height - Euler angles
- Height - attitude quaternion
- Accelerometer, gyroscope and magnetometer data
- Altitude, position and speed according to GPS (when external module is connected)
- UART communication with default speed: 921 600 bps and 3.3 V operating voltage
- UART interface outputs (RX and TX) tolerate 5 V
- Transmission uses NMEA (up to 100 Hz), binary packets for high efficiency (up to 255 Hz) or a combination of both modes
- Flexible communication architecture allows for data transmission in individually adjustable packets
- Real-time configuration via CHR serial interface software
- SPI interface via additional connectors
Specification
- Supply voltage: d 4 V to 5.5 V
- 3.3 V logic (with 5 V tolerance on RX and TX pins)
- Measurement ranges (configurable):
- Accelerometer: ± 8 g
- Gyroscope: ± 2000 °/s
- Magnetometer: ± 12 gauss
- Size: 27 x 26 x 6.5 mm
- Weight: 7,5 g
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