ER-EC29B-High Precision 3D Electronic Compass

Main characteristics
● Azimuth accuracy: 0.7°(0.5°RMS)
● Inclination measurement range: ±15°
● Inclination resolution: 0.001°
● Inclination accuracy: 0.01°
● Wide temperature range: -40°C~+85°C
● Horizontal and vertical dual mode, switchable
● With hard magnetic, soft magnetic and tilt compensationoutput interface
● Standard RS232/RS485/TTL
● DC 7V power supply
● Standard RS485 output interface

Product Details


Product description

The ER-EC29B is a low-cost 3D electronic compass that uses US patented hard magnetic and soft magnetic calibration algorithms to enable the compass to eliminate the effects of magnetic fields through calibration algorithms in environments with magnetic interference. The ER-EC29B integrates a three-axis fluxgate sensor that solves the heading in real time through a central processor and uses a three-axis accelerometer to compensate for heading over a wide range of tilt angles, ensuring that the compass provides high precision at tilt angles up to ±45°. Heading data. The electronic compass integrates high-precision MCU control and has a diversified output mode. The standard interface RS485 interface can also be customized for other communication interfaces. 

The ER-EC29B is small in size and low in power consumption. It can be used in many fields such as antenna stabilization, vehicle and system integration. High shock resistance and high reliability make the compass work in extremely harsh environments, which is more suitable for today's miniaturized military industry. High precision measurement integrated control system.


Main characteristics

● Azimuth accuracy: 0.7° (0.5°RMS)                     

● Inclination measurement range: ±1

● Inclination resolution: 0.00          

● Inclination accuracy: 0.01°

● Wide temperature range: -40°C+85°C

●Horizontal and vertical dual mode, switchable

●With hard magnetic, soft magnetic and tilt compensationoutput interface

●Standard RS232/RS485/TTL

●DC 7V power supply

●Standard RS485 output interface


●Satellite antenna search star

●Artillery launch system

●ROV underwater robot navigation

●Navigation navigation mapping

●GPS integrated navigation

●Antenna servo control

●Infrared imager Laser rangefinder

●Map filler

●Oceanology tester

●Special occasion robot

●Unmanned aerial vehicle

Product electrical parameters

Compass heading parameter

             Optimum heading accuracy

0.7° (0.5°RMS)



Compass inclination parameter

                       Pitch accuracy

0.01°<15°(Measuring range)

                    Pitch oblique range


                        Roll accuracy

0.01°<15°(Measuring range)

                    Roll oblique  range




Compass tilt optimal compensation angle range



                   Hard iron calibration


                   Soft iron calibration


Magnetic field interference calibration method

One rotation of the plane (two-dimensional calibration)

Physical characteristics


L120×W20xH16.4mm(Without package)


13 g


5-core 1 m direct lead

                     Start delay


Interface characteristics

             Maximum output rate


              Communication rate

2400 ~ 19200baud

                 Output format

Binary high performance protocol

Power supply

                  Supply voltage

(default) DC +7V

Current (maximum)



                 Operating range


              Storage temperature


          Anti-vibration performance


     Electromagnetic   compatibility

According to EN61000 and GBT17626

Mean time between failures

≥40000  hours/time

    Insulation resistance

≥100 MΩ

      Vibration resistant



HCM296B 性能参数指标

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