DMP Electronics RoBoard RM-G144 User manual

RoBoard Module RM-G144
Manual V1.01
The Heart of Robotics
Jun 2010
DMP Electronics Inc

Copyright
The information in this manual is subject to change without notice for continuous
improvement in the product. All rights are reserved. The manufacturer assumes
no responsibility for any inaccuracies that may be contained in this document.
And makes no commitment to update or to keep current the information
contained in this manual.
No part of this manual may be reproduced, copied, translated or transmitted, in
whole or in part, in any form or by any means without the prior written
permission of the DMP Electronics Inc.
¤Copyright 2010 DMP Electronics Inc.
Manual No. RM-G144-01 Ver.1.01 Jun, 2010
Trademarks Acknowledgment
Other brand names or product names appearing in this document are
the properties and registered trademarks of their respective owners. All
names mentioned herewith are served for identification purpose only.

T a b l e O f C o n t e n t s
C h a p t e r 1............................................................................................4
Introduction........................................................................4
1.1 Packing List..........................................................4
1.2 Product Description..............................................5
1.3 Specifications.......................................................6
1.4 I2C Address ..........................................................7
1.5 Board Dimension .................................................8
.......................................................................................................................8
C h a p t e r 2.............................................................................................9
Installation..........................................................................9
2.1 Board Outline.......................................................9
2.2 Connectors & Pin 1 Location.............................10
2.3 Connectors & Jumpers Summary ......................11
2.4 Pin Assignments.................................................12
J1: I2C connector (Top)..............................12
J2: Option (for G-Sensor) ..........................12
J3: I2C connector (Bottom) ........................12
C h a p t e r 3........................................................................................13
Development Note ...........................................................13
Sample and development code.................................13

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C h a p t e r 1
Introduction
1.1 Packing List
Product Name Package
RM-G144
RoBoard Module G144
Cable-RM-1
6 pin Cable x 1

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1.2 Product Description
The RoBoard Module RM-G144 is fully integrated and combines 3-axis
magneto-resistive sensor with the HMC5843 and 3-axis accelerometer with the
ADXL345, simply and all done through I2C interface, the dimension of it is wee
as 20 x 20 mm.
The HMC5843 is a surface mount multi-chip module designed for low field
magnetic sensing with a digital interface for applications such as low cost
compassing and magnetometry.
The ADXL345 is a 3-axis accelerometer with high resolution (13-bit)
measurement at up to ±16 g. Digital output data is formatted as 16-bit twos
complement and is accessible through I2C digital interface.

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1.3 Specifications
RM-G144 Compass + G-Sensor Module
Compass
3-Axis Digital Compass HMC5843
G-Sensor
3-Axis Accelerometer ADXL345
Interface
I2C
Connectors
1.25mm 6-pin wafer for I2C x 2
Power Input
DC-in 5V
Dimension
20mm X 20mm
Weight
2.5g

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1.4 I2C Address
zDigital Compass HMC5843 I2C address (7 bit address) : 0x1e
zAccelerometer ADXL345 I2C address (7 bit address) : 0x53

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1.5 Board Dimension

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C
Ch a p t e r 2
Installation
2.1 Board Outline
Top Side
Bottom Side

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2.2 Connectors & Pin 1 Location
Connectors
Top Side
Bottom Side
Pin 1 Location
Top Side
Bottom Side