LSM303_Tilt_Compensated_Compass_SEN0079_-DFRobot

Introduction

The LSM303DLH is a triple axis accelerometer combined with a triple axis magnetic sensor. This breakout board uses the LSM303DLH to give you the data you need to feed into a arduino microcontroller and calculate tilt-compensated output.

Specifications

• Power supply: 3.6~8V DC

• Chip: LSM303DLH

• ±1.3 to ±8,1 gauss magnetic field full-scale

• ±2 g/±4 g/±8 g dynamically selectable fullscale

• 16-bit data out

• I2C serial interface

• 2 independent programmable interrupt

• generators for free-fall and motion detection

• Embedded self-test

• Accelerometer sleep-to-wakeup function

• 6D orientation detection

• Dimensions: 20.5mmx20.5mm

• Weight: 1g

Applications

• Compensated compassing
• Map rotation
• Position detection
• Motion-activated functions
• Free-fall detection
• Intelligent power-saving for handheld devices
• Display orientation
• Gaming and virtual reality input devices
• Impact recognition and logging
• Vibration monitoring and compensation

Tutorial

Requirements

• Hardware

  • DFRduino UNO R3 (or similar) x 1
  • LSM303 Breakout Board x 1

• Software

  • Arduino IDE
  • Download and install the LSM303 Library.
  • About how to install the library?

    Connection Diagram

Sample Code

(Read Navigation Angle)

/*!
 * @file NavigationAngleRead.ino
 * @brief DFRobot's Manentic Sensor,This program continuously reads the accelerometer and magnetometer,
 *        communicating the readings over the serial interface. You can display the readings with the Arduino Serial Monitor.
 * @n [Get the module here](https://www.dfrobot.com.cn/goods-326.html)
 * @n This example get the four lightest positions of the IR sources.
 * @n [Connection and Diagram](http://wiki.dfrobot.com.cn/index.php?title=(SKU:TOY0035)Gadgeteer_LSM303%E7%94%B5%E5%AD%90%E7%BD%97%E7%9B%98%E4%BC%A0%E6%84%9F%E5%99%A8)
 *
 * @copyright   [DFRobot](https://www.dfrobot.com), 2016
 * @copyright   GNU Lesser General Public License
 *
 * @author [carl](carl.xu@dfrobot.com)
 * @version  V1.0
 * @date  2016-07-11
 */
#include <MagneticSensorLsm303.h>

MagneticSensorLsm303 compass;

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

void loop() {
  compass.read();
  float heading = compass.getNavigationAngle();
  Serial.print("Navigation Angle:  ");
  Serial.println(heading,3);
  delay(500);  // delay for serial readability
}

Sample Code

(Read Raw Data)

/*!
 * @file MagneticRawData.ino
 * @brief DFRobot's Manentic Sensor,This program continuously reads the accelerometer and magnetometer,
 *        communicating the readings over the serial interface. You can display the readings with the Arduino Serial Monitor.
 * @n [Get the module here](https://www.dfrobot.com.cn/goods-326.html)
 * @n This example get the four lightest positions of the IR sources.
 * @n [Connection and Diagram](http://wiki.dfrobot.com.cn/index.php?title=(SKU:TOY0035)Gadgeteer_LSM303%E7%94%B5%E5%AD%90%E7%BD%97%E7%9B%98%E4%BC%A0%E6%84%9F%E5%99%A8)
 *
 * @copyright   [DFRobot](https://www.dfrobot.com), 2016
 * @copyright   GNU Lesser General Public License
 *
 * @author [carl](carl.xu@dfrobot.com)
 * @version  V1.0
 * @date  2016-07-11
 */

#include <MagneticSensorLsm303.h>

MagneticSensorLsm303 compass;

char report[120];

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

void loop()
{
  compass.read();
  snprintf(report, sizeof(report), "Acceleration:(X:%6d Y:%6d Z:%6d) Magnetometer:(X:%6d Y:%6d Z:%6d)",
  compass.accelerometer.x, compass.accelerometer.y, compass.accelerometer.z,
  compass.magnetometer.x, compass.magnetometer.y, compass.magnetometer.z);
  Serial.println(report);
  delay(500);
}

More Documents

Github Repository

Get LSM303 Breakout Board - Tilt Compensated Compass from DFRobot Store or DFRobot Distributor.

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