senz003-tilt-compensated-compass's Introduction

SENZ003-Tilt-Compensated-Compass

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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.

Application

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

Specification

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

Tutorial

Connection Diagram

Sample Code

#define SensorLED   13
//Connect the sensor to digital Pin 3 which is Interrupts 1.
#define SensorINPUT  3  

unsigned char state = 0;

void setup() {
  pinMode(SensorLED, OUTPUT);
  pinMode(SensorINPUT, INPUT);
  //Trigger the blink function when the falling edge is detected
  attachInterrupt(1, blink, FALLING);  
}

void loop() {
  if (state != 0) {
    state = 0;
    digitalWrite(SensorLED, HIGH);
    delay(500);
  } 
  else
    digitalWrite(SensorLED, LOW);
}

//Interrupts function  
void blink() {
    state++;
}