Ruben Laguna’s blog

Arduino Library for Hmc6352

As part of my Xbee sensor project, I created an object oriented API to access HMC6352 compass functionality and I decided to make it downloadable as an Hmc6352 Arduino Library.
Just unzip the file in the $arduino_home/hardware/libraries/. At the end you should end with $arduino_home/hardware/libraries/Hmc6352.

The library includes an example on how to use it (in File ⇒ Sketchbook ⇒ Examples ⇒ Library-Hmc6352 ⇒ Hmc6352.

Hmc6352 example menu

The example looks like this (also available as gist):

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<span class='line'>/*
</span><span class='line'> * hmc6352example.pde
</span><span class='line'> * 
</span><span class='line'> * Copyright (c) 2009 Ruben Laguna &lt;ruben.laguna at gmail.com>. All rights reserved.
</span><span class='line'> * 
</span><span class='line'> * 
</span><span class='line'> * This program is free software: you can redistribute it and/or modify
</span><span class='line'> * it under the terms of the GNU General Public License as published by
</span><span class='line'> * the Free Software Foundation, either version 3 of the License, or
</span><span class='line'> * (at your option) any later version.
</span><span class='line'> * 
</span><span class='line'> * This program is distributed in the hope that it will be useful,
</span><span class='line'> * but WITHOUT ANY WARRANTY; without even the implied warranty of
</span><span class='line'> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
</span><span class='line'> * GNU General Public License for more details.
</span><span class='line'> * 
</span><span class='line'> * You should have received a copy of the GNU General Public License
</span><span class='line'> * along with this program.  If not, see &lt;http://www.gnu.org/licenses/>.
</span><span class='line'> */
</span><span class='line'>
</span><span class='line'> 
</span><span class='line'>#include &lt;hmc6352.h>
</span><span class='line'> 
</span><span class='line'>
</span><span class='line'>
</span><span class='line'>//set up hmc6352
</span><span class='line'>Hmc6352 hmc6352;
</span><span class='line'>
</span><span class='line'>  
</span><span class='line'>void setup()  {  
</span><span class='line'>  Serial.begin(9600);
</span><span class='line'>  delay(100);
</span><span class='line'>  
</span><span class='line'>  Serial.print("RST\r\n");delay(100);  
</span><span class='line'>}
</span><span class='line'>
</span><span class='line'>
</span><span class='line'>void loop() 
</span><span class='line'>{ 
</span><span class='line'>  hmc6352.wake();
</span><span class='line'>  float a = hmc6352.getHeading();
</span><span class='line'>  hmc6352.sleep();
</span><span class='line'> 
</span><span class='line'>  Serial.print((int)a,DEC);
</span><span class='line'>  Serial.print("\r\n");
</span><span class='line'>  
</span><span class='line'>}</span>


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