Related Manuals for BW SENSING BMR3300
Summary of Contents for BW SENSING BMR3300
- Page 1 BMR3300 Serials Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Technical Manual...
- Page 2 High Accuracy Electronic Compass Introduction The BMR3300 high-accuracy electronic compass is composed of an industrial-grade single-chip microcomputer with high reliability and anti-interference ability, and a high-accuracy magnetic sensor and driver chip. At the same time, it integrates the hard magnetic and soft magnetic calibration algorithms of Bewis sensing patented technology, and compensates the tilt angle with a three-axis accelerometer, which can provide accurate heading data in extremely harsh environments.
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Page 3: Specifications
BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Specifications Electrical Specifications Power supply 9-35V DC Operating current 30mA（Max40mA） Operating temperature -40~85℃ Store temperature -55~100℃ Performance Specifications 0.2 RMS（Horizontal use） Heading accuracy ＜0.5 RMS（Pitch<30°） Compass heading parameter 0.01° Resolution 0.05°... - Page 4 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Resolution: The measured minimum change value that the sensor can detect and resolve within the measurement range. Accuracy: The error between the actual angle and the Root mean square(RMS) of the measured angle of the sensor (≥16 times).
- Page 5 After the calibration in accordance with the manual, the firmware and program in the BMR3300 can effectively eliminate the interference of the magnetic field. As long as the position of the compass and the surrounding magnetic field environment have not changed, it is no longer necessary to compensate the sensor.
- Page 6 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Method 2 - Multi-face calibration: 1.Fix the electronic compass in the use environment, and try not to carry magnetic items such as keys and mobile phones during calibration; 2.Connect the product to the system and put it in a horizontal state(within ±5°);...
- Page 7 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Electrical connections s Electrical interfaces BLUE BLACK GREEN YELLOW Cable color & function （A、D+） （B、D-） DC 9-35V DC 9-35V RED VCC 485A/485+ YELLOW Signal Electronic acquisition 485B/485- compass GREEN Sensor BLACK GND...
- Page 8 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Protocol 1Data Frame Format： （8 data bits，1 stop bit，No parity check，default baud rate 9600） Data Command Checksum Identifier Frame Length Address Code （1byte） （1byte） （1byte （1byte） （1byte） （Xbyte） 0x77 Data Format: Hexadecimal Identifier: Fixed to 77 Frame Length: Length from Frame Length to Checksum（included）...
- Page 9 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.3 Read Heading azimuth angle Command： 77 04 00 03 07 Identifier Command Frame Length Data Address Code Checksum （1byte （1byte） （0byte） （1byte） （1byte） （1byte） 0x77 0x03 0x04 Command response： Identifier...
- Page 10 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.5 Set the magnetic declination Command： 77 06 00 06 02 08 16 Command Identifier Frame Length Data Address Code Checksum （1byte） （1byte （1byte） （2byte） （1byte） （1byte） 0x77 0x06 0x06 0x06 SXXX.YY...
- Page 11 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.8 Set address Command: 77 05 00 0F 01 15 Frame Length Identifier Command Address Code Data Checksum （1byte） （1byte （1byte） （1byte） （1byte） （1byte） 0x77 0x05 0x0F XX Address Command response：...
- Page 12 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Command response： Identifier Data Frame Length Address Code Command Checksum （1byte （1byte） （1byte） （1byte） （1byte） （1byte） 0x00: success 0x77 0x8C 0x05 0xFF: failure Note: 5Hz Data Rate means that 5 sets of angle data are automatically output every second, and so on.
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Page 13: Ordering Information
BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Ordering Information Product number Way of communication Package condition Bare board BMR3300-232 R 232 Bare board BMR3300-485 RS485 Bare board BMR3300-TTL Executive standard ● Enterprise Quality System Standard: ISO9001:2008 Standard (Certificate No.:10114Q16846ROS) ●... - Page 14 BMR3300 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Wuxi Bewis Sensing Technology LLC Address: Building 30, No. 58 Xiuxi Road, Binhu District, Wuxi City Hotline: 400-618-0510 Tel: +86 510 85737178-801 Email: sales@bwsensing.com Website: www.bwsensing.com...
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