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Accelerometer Gyro Sensor
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Digital Compass Sensor with 0.8° Heading Accuracy and RS232/RS485/TTL Output for Navigation Systems

Digital Compass Sensor with 0.8° Heading Accuracy and RS232/RS485/TTL Output for Navigation Systems

Model Number: FCM250B/260B
MOQ: 1
Price: 300$
Supply Ability: 1000/month
Detail Information
Place of Origin:
China
Certification:
CE
Heading Accuracy:
0.8°
Heading Resolution:
0.1°
Pitch & Roll Measurement Range:
±85°
Pitch Accuracy:
0.1° (<15°), 0.2° (<30°), 0.3° (<60°)
Roll Accuracy:
0.1° (<15°), 0.2° (<30°), 0.3° (<60°)
Tilt Resolution:
0.1°
Tilt Compensation Range:
<40°
Output Interface:
RS232 / RS485 / TTL
Packaging Details:
Sponge + Carton
Supply Ability:
1000/month
Highlight:

0.8° Heading Accuracy Digital Compass Sensor

,

RS232/RS485/TTL Output Electronic Heading Module

,

±85° Tilt Compensation Three-Dimensional Electronic Compass

Product Description
Digital Compass Sensor High Accuracy Electronic Heading Module for Navigation and Antenna Control Systems
Product Introduction

The FCM250B/260B is a low-cost three-dimensional electronic compass that utilizes hard and soft magnetic calibration algorithms to eliminate magnetic field interference through advanced calibration. This compass integrates a three-axis fluxgate sensor and calculates heading in real-time via a central processor, while a three-axis accelerometer provides heading compensation for tilt angles up to ±85°, ensuring high accuracy even at extreme angles.

Featuring high-precision MCU control and multiple output options, the electronic compass offers standard interfaces including RS232/RS485/TTL, with custom communication interfaces available upon request.

With its compact size, low power consumption, and robust construction, the FCM250B/260B is suitable for stable antennas, vehicles, and system integration applications. Its high shock resistance and reliability enable operation in extremely harsh environments, making it ideal for precision measurement integrated control systems.

Main Features
  • Heading accuracy: 0.8°
  • Inclination measurement range: ±85°
  • Inclination resolution: 0.1°
  • Inclination accuracy: 0.2°
  • Temperature range: -40℃ to +85℃
  • DC 5V power supply
  • Hard magnetic, soft magnetic and tilt compensation
  • Standard RS232/RS485/TTL output interface
Applications
  • Navigation surveying
  • Satellite antenna searching
  • GPS combined navigation
  • Antenna servo control
  • Infrared imagers
  • Special occasion robots
  • ROV underwater robot navigation
  • Laser rangefinders
  • Mapping
  • Oceanographic survey instruments
Specifications
Parameter Value
Heading accuracy 0.8°
Resolution 0.1°
Pitch accuracy 0.1°<15° (measure range)
0.2°<30° (measure range)
0.3°<60° (measure range)
Pitch range ±85°
Rolling accuracy 0.1°<15° (measure range)
0.2°<30° (measure range)
0.3°<60° (measure range)
Roll range ±85°
Resolution 0.1°
Tilt compensation angle range <40°
Hard iron calibration Yes
Soft iron calibration Yes
Magnetic field interference calibration method Rotate horizontally one round (2D calibration)
PCBA size L33×W27×H9mm
RS232/RS485/TTL PCBA: 4PIN 30cm terminal cable
Start delay <50mS
Output rate 20Hz/s
Baud rate 2400 to 19200baud
Output format Binary high-performance protocol
Supply voltage (default) DC+5V
(optional) DC 9~36V
Current (MAX) 45mA
Ideal mode 35mA
Sleep mode TBD
Operating range -40℃~+85℃
Storage temperature -40℃~+85℃
Anti-vibration performance 2500g
EMC According to EN61000 and GBT17626
MTBF ≥98000 hours/time
Insulation resistance ≥100MΩ
Impact resistance 100g@11ms, three direction (half sinusoid)
Anti-vibration 10grms\10~1000Hz
Weight PCBA:≤25g (excluding cable)
Product Dimensions
FCM250B/260B Digital Compass Sensor dimensional diagram FCM250B/260B Digital Compass Sensor size specifications