Ruben Laguna's blog

Mar 19, 2009 - 2 minute read - Comments - arduino compass electronics heading hmc6352 library microcontroller

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):

/*
* hmc6352example.pde
*
* Copyright © 2009 Ruben Laguna <ruben.laguna at gmail.com>. All rights reserved.
*
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#include <hmc6352.h>

//set up hmc6352
Hmc6352 hmc6352;

void setup() {
  serial.begin(9600);
  delay(100);

  serial.print("rst\r\n");delay(100);
}

void loop()
{
  hmc6352.wake();
  float a = hmc6352.getHeading();
  hmc6352.sleep();

  Serial.print((int)a,DEC);
  Serial.print("\r\n");
}

References: