TUNAG003 Microchip Technology, TUNAG003 Datasheet

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TUNAG003

Manufacturer Part Number
TUNAG003
Description
Position Sensor Development Tools UNAGI CM1020 ELEC COMPASS MOD
Manufacturer
Microchip Technology
Datasheet
1.TUNAG003.pdf (12 pages)

Specifications of TUNAG003

Interface Type
I2C
UNAGI NET
www.unagi.net •
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
sensitive triaxial accelerometer, the CM1020 calculates
it’s position relative to terrestrial magnetism, and
outputs it’s direction in degrees.
data is also available.
With it’s built-in microprocessor core, the CM1020
automatically
algorithms, so that the module is always ready to
operate correctly.
module, and then read the appropriate registers to find
it’s direction. The module does all the detection and
heavy calculations.
The
communication port.
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”.
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.
CM1020 ELECTRONIC COMPASS MODULE
COMPLETE DIRECTION DETECTION MODULE WITH
MAGNETOMETER AND ACCELEROMETER
CM1020
This
LLC
• MOUNTAIN VIEW, CALIFORNIA
communicates
calibrates
allows
techinfo@unagi.net
Simply apply DC power to the
The CM1020 only requires a
the
itself
module
via
Gyroscopic output
using
a
to
simple
be
patented
easily
serial
Features
•
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
•
• Portable GPS mapping equipment
• Weather station loggers
• Construction equipment
• Marine mapping displays
Completely tested self-contained module
Automobile navigators
Version 0.92 - Jul 5, 2011
UNAGI
NET
LLC
1

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TUNAG003 Summary of contents

Page 1

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 ...

Page 2

CM1020 COMPASS MODULE MODULE OUTLINE UNAGI NET • MOUNTAIN VIEW, CALIFORNIA LLC www.unagi.net • techinfo@unagi.net Reading Direction 1 2mm 0.032” DIA 1.00” UN AGI 1.50” 2 Version 0.92 - Jul 5, 2011 ...

Page 3

CM1020 COMPASS MODULE PIN DESCRIPTIONS PIN NAME DIRECTION # 1 I2CDAT Open Collector 2 12CCLK Open Collector 3 --- --- 4 --- --- 5 --- --- 6 --- --- 7 --- --- 8 --- --- 9 --- --- 10 --- ...

Page 4

CM1020 COMPASS MODULE Absolute Maximum Ratings Supply Voltage Input Voltage Voltage at all other pins T MAX Recommended Operating Conditions Voltages referenced to GND; GND = 0 V Parameter Symbol Supply Voltage (1) VDD ...

Page 5

CM1020 COMPASS MODULE DC Characteristics Voltages referenced to GND; GND = 0 V, VDD = 3.3V Parameter Symbol Input Voltage V IL Low Input Voltage V IH High Output Voltage V OL Low Output Voltage V OH High Open Collector ...

Page 6

CM1020 COMPASS MODULE Applications Information Power On The CM1020 only requires power to begin operation. The module has a built-in reset and watchdog function, therefore all that is required is proper VDD to begin operation. The maximum power ramp-up is ...

Page 7

CM1020 COMPASS MODULE Serial Communication The CM1020 module uses the simple 2-wire serial communication protocol I2C. There are only two pins required for all communications in both directions. The CM1020 module acts as a slave device on the I2C databus. ...

Page 8

CM1020 COMPASS MODULE Applications Information Data Format The registers of the CM1020 are grouped into two byte words. The Heading data is in hex, with the actual direction degrees multiplied by 10. In other words, a reading of 1376 would ...

Page 9

CM1020 COMPASS MODULE • Register 0x00 - HEADU (Calculated Heading, Upper byte) • Register 0x01 - HEADL (Calculated Heading, Lower byte BITS 7-0 HEADU (7:0) : Upper byte of the calculated heading 7 6 ...

Page 10

CM1020 COMPASS MODULE • Register 0x04 - MAGU (Calculated Magnitude, Upper byte) • Register 0x05 - MAGL (Calculated Magnitude, Lower byte BITS 7-0 MAGU (7:0) : Upper byte of the calculated magnitude 7 6 ...

Page 11

CM1020 COMPASS MODULE • Register 0x08 - PITU (Calculated Pitch, Upper byte) • Register 0x09 - PITL (Calculated Pitch, Lower byte BITS 7-0 PITU (7:0) : Upper byte of the calculated pitch 7 6 ...

Page 12

CM1020 COMPASS MODULE • Register 0x0C - YAWU (Calculated Yaw, Upper byte) • Register 0x0D - YAWL (Calculated Yaw, Lower byte BITS 7-0 YAWU (7:0) : Upper byte of the calculated yaw 7 6 ...

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