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CM1020 ELECTRONIC COMPASS MODULE
COMPLETE DIRECTION DETECTION MODULE WITH
MAGNETOMETER AND ACCELEROMETER
General Description
The CM1020 is a complete electronic compass module,
that outputs accurate directional data without the need
for manual calibration or additional components.
Utilizing a 3 axis magnetometer along with a highly
U N AGI
NE T LLC
sensitive triaxial accelerometer, the CM1020 calculates
it’s position relative to terrestrial magnetism, and
outputs it’s direction in degrees. Gyroscopic output
data is also available.
With it’s built-in microprocessor core, the CM1020
automatically calibrates itself using patented
algorithms, so that the module is always ready to
operate correctly. Simply apply DC power to the
module, and then read the appropriate registers to find
it’s direction. The module does all the detection and
heavy calculations.
The CM1020 communicates via a simple serial
communication port. The CM1020 only requires a
single 3.3VDC power supply and is very low in power
consumption (< 350mW).
The CM1020 module is very small in size, 1.0” x 1.5” x
0.13”. This allows the module to be easily
incorporated into handheld or other portable devices.
The module contains a single 12-pin header which
contains all the power and interface signals.
The CM1020 module is built with high-volume
manufacturing techniques, to keep quality high and
costs low. Each module is 100% tested with accuracy
guaranteed.
Features
? Completely tested self-contained module
No additional circuits or components required
? Patented Auto-Calibration
No special equipment or methods required to
calibrate for accurate direction detection
? Highly accurate direction detection
Direction values from 0.0 to 359.9 degrees
Includes Gyro data: Inclination, Pitch, Roll, Yaw
?Low-power consumption
Ideal for battery operation
? Easy to interface
Single DC supply and a simple serial interface.
? Compact size 1.0” x 1.5” x 0.13”
Ideal for hand-held or other portable products
Applications
? Automobile navigators
? Portable GPS mapping equipment
? Weather station loggers
? Construction equipment
? Marine mapping displays
UNAGI NET LLC ? MOUNTAIN VIEW, CALIFORNIA
www.unagi.net ? techinfo@unagi.net
Version 0.92 - Jul 5, 2011
1
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