The devantech magnetic compass module cmps03 identifies the angle of rotation in relation to the earths magnetic field. This is a tutorial for old models of arduino robot. For documentation on cmps03 revisions prior to rev14, click here earlier versions can be identified by the presence of the silver 8mhz ceramic resonator in the middle of the pcb, this has been removed on new modules. How to use gy511 module with arduino and make a digital. Beware, magnets will interfere with the compass readings. This is a simple sketch to test out the hmc5883l based digital compass for potential inclusion in the rov project. With adalanya i2c data communication lines from this cmps03 this module can be connected directly to a microcontroller that suport with i2c data communication channels such as avr atmega. The configuration of reading the cmps03 registers with this program is available after installing. Hmc5883l digital compass on an arduino le mon 03 august 2015. Arduino compatible 3 axis compass magnetometer module. The compass uses the philips kmz51 magnetic field sensor, which is sensitive enough to detect the earths magnetic field.
This compass module has been specifically designed for use in robots as an aid to navigation. Mar 31, 2014 choosing a backup generator plus 3 legal house connection options transfer switch and more duration. This cmps03 is discontinued now, we recommend other magnetic sensors as a suitable replacement. Arduino compatible 3 axis compass magnetometer module cat. Magnetic sources near by, chassis of the robot, not to mention the earths magnetic field distribution all affects the compass module. Get unlimited access to the best stories on medium and support writers while youre at it. This breakout board uses the lsm303dlh to give you the data you need to feed into a arduino microcontroller and calculate tiltcompensated output. Jan 15, 2012 of this software and associated documentation files the software, to deal in the software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, andor sell. Sign up arduino library supporting several models of devantech compass module. The configuration of reading the cmps03 registers with this program is. A magnetometer can sense where the strongest magnetic force is coming from, generally used to detect magnetic north.
It reads the bearing as a two byte integer and displays the bearing as a number 0359 on the pc. In this tutorial youll learn to calibrate the compass on your robot with a few simple steps. Gy511 compass module has 8 pins, but you need only 4 of them to interface with arduino. At present the rov pilot has only their own spacial sense and the video feed to determine where they are and which way theyre facing. Robot compass the robot has an onboard compass module, with which it can tell the direction the robot is facing. Apr 26, 2011 magnetic compass module uses i2c data communication lines to mirokontroler. The compass module consists of an hmc5883l threeaxis cartesian axes x, y and z magnetic field chip which consists of 3 magnetoresistive sensors arranged in axes perpendicular to each other. You may have noticed, the compass module on your arduino robot doesnt always give accurate readings. Getting started with a digital compass posted on january 7, 20 by andrew david thaler as i mentioned during the last blue pints episode, this year im going to be attempting to build a lowcost open source ctd for basic oceanographic measurements. This sketch will make sure the robot goes towards a certain direction.
I saw that i got wrong readings because not all numbers of the full circle came through. Magnetic compass module cmps03 require 5 v voltage with 15ma current. To test the working of the setup i used the i2c interface tool provided by devantech. Feb 01, 2014 blog yang berisi artikel tentang programming microcontroller, arduino, robotik, teknologi, berita robotik, dan tutorial programming tutorial arduino kontrol sensor magnetic compass cmps03 menggunakan i2c pada arduino mega 2560 riz robot. These topics cover the hardware and software setup required to connect an arduino device with a variety of electronic parts, chips and devices. Register 0 is the software revision number 8 at the time of writing. More specifically, ones with honeywell hmc 6352 mounted.
Using the ublox neo 6 gps and compass board rydepier blog spot. Tutorial arduino kontrol sensor magnetic compass cmps03. Ive written two arduino libraries for interfacing with srf02 ultrasonic range and cmps03 magnetic compass sensors. This was caused by the metal bolts and nuts i used to fix the cmps03 module to the wooden board. Cmps03 magnetic compass this uses the i2c bus to connect the arduino to the cmps03. This class is an interface to the cmps03 compass sensor. The opensource arduino software ide makes it easy to write code and upload it to the board. Information on the creation and use of specific shields belongs in that section. Code for testing a digital compass using arduino uno cmps03 with arduino i2c example this will display a value of 0 359 for a full rotation. The cmps03 module should be connected to the i2c bus of the arduino, i.
Wiring arduino reads data from a devantech cmp03 compass sensor. The environment is written in java and based on processing and other opensource software. Getting the cmps03 compass to work with the arduino professor. This tutorial will get you started on using this sensor, with code and wiring diagrams. Devantech cmps03 digital compass reader code, circuits. We use cookies to ensure that we give you the best experience on our website. Adafruit hmc5883l breakout tripleaxis magnetometer compass. Kompas ini menggunakan dua sensor medan magnet kmz51 buatan philips yang cukup peka untuk mendeteksi medan magnet bumi. The lsm303dlh is a triple axis accelerometer combined with a triple axis magnetic sensor. The binary of 0xc0 is 1000, the binary of 0x60 is 0100. For example our cmps03 is at address 0xc0, but on the arduino you will use 0x60. Start arduino and select filesketchbookexampleslibrary cmps03cmps03 from the menu. Wiringarduino reads data from a devantech cmp03 compass sensor. The aim was to produce a unique number to represent the direction the robot is facing.
The compass uses a four pin socket, i cut the plug off the other end and soldered a four pin header plug instead. This compass was designed by devantech specifically for use in robots to aid navigation. The lsm303 breakout board combines a magnetometer compass module with a tripleaxis accelerometer to make a compact navigation subsystem. The arduino uses 7bit i2c addresses, and our own documentation uses 8bit addresses.
Cmps03 compass module for documentation on cmps03 revisions prior to rev14, click here earlier versions can be identified by the presence of the silver 8mhz ceramic resonator in the middle of the pcb, this has been removed on new modules. Disco night by alex grey, making progress by luke fontaine hmc5883l digital compass and arduino hmc5883l library. The lcd05lcd03 is only used to display the software version number. The libraries are released under the mpl mozilla public license and are available from my homepage. Choosing a backup generator plus 3 legal house connection options transfer switch and more duration. This module communicates with arduino using i2c protocol, so connect the sda i2c output and sck i2c clock input pins of the module to the i2c pins on the arduino board. Apr 09, 2015 the picture shows the compass connected to an arduino uno. This code reads a devantech cmps03 digital compass on wiring or arduino using the wire library for i2c. A project containing the core arduino framework and libraries to simplify the development of. This product is not a gyro compass, this is a magnetometer, that measures magnetic field, including the magnetical north orientation, it have a i2c interface that give us the possibility to enhance more then one sensor in the same port of arduino. Apr 22, 2014 cmps03 modul magnetic compass cmps03 modul magnetik kompas, modul kompas ini didesain khusus dalam bidang robotik untuk tujuan navigasi robot. Mar 24, 2017 hmc5883l 3axis compass module arduino interface. Overview this compass module has been specifically designed for use in robots as an aid to navigation.
Rev14 was released march 2007 overview this compass module has been specifically designed for use in robots as an aid to navigation. Cmps03 robot compass module this compass module has been specifically designed for use in robots as an aid to navigation. Ah, if only you had this tripleaxis magnetometer compass module. The cmps03 is a digital compass with an i2c interface. A related topic not covered under this section is the shield, boards that plug directly into an arduinos pin layout. Cmps03 documentation i2c communication protocol with the compass module is the same as popular eeproms such as the 24c04 first send a start bit, the module address 0xc0 with the readwrite bit low, then the register. The arduino address is the same as our address, but shifted right by 1 bit.