Magnetometer Compass Module for Arduino Projects

Provides accurate compass bearings 

This 3-Axis Magnetic Electronic Compass Module is designed for low-field magnetic sensing with a digital interface and it is perfect to give precise heading information. This compact sensor fits into small projects such as UAVs and robot navigation systems. The sensor converts any magnetic field to a differential voltage output on 3 axis. This voltage shift is the raw digital output value, which can then be used to calculate headings or sense magnetic fields coming from different directions.

Specification:

• 3-axis magnetic electronic compass

• Precise heading information

• Fits into small projects easily

• I2C communication

• QMC5883L chip

• Operating Voltage: 3V-5V DC

• Chipset QMC5883L

• Communication: I2C protocol

• Measuring range: ± 1.3-8 Gauss

• Dimensions: 14.8mm x 13.5mm x 3.5mm

Download Library CLICK Below

Sample code:

#include <QMC5883LCompass.h>

QMC5883LCompass compass;

void setup() {
  Serial.begin(9600);
  compass.init();
}

void loop() {

	int x, y, z, a, b;
	char myArray[3];
	
	compass.read();
  
	x = compass.getX();
	y = compass.getY();
	z = compass.getZ();
	
	a = compass.getAzimuth();
	
	b = compass.getBearing(a);

	compass.getDirection(myArray, a);
  
  
	Serial.print("X: ");
	Serial.print(x);

	Serial.print(" Y: ");
	Serial.print(y);

	Serial.print(" Z: ");
	Serial.print(z);

	Serial.print(" Azimuth: ");
	Serial.print(a);

	Serial.print(" Bearing: ");
	Serial.print(b);

	Serial.print(" Direction: ");
	Serial.print(myArray[0]);
	Serial.print(myArray[1]);
	Serial.print(myArray[2]);

	Serial.println();

	delay(250);
}