ardupilot/libraries/AP_RangeFinder/AP_RangeFinder_MaxsonarLV.cpp

// -*- tab-width: 4; Mode: C++; c-basic-offset: 3; indent-tabs-mode: t -*-
/*
	AP_RangeFinder_MaxsonarLV.cpp - Arduino Library for Maxbotix's LV-MaxSonar 
	Sonic proximity sensor
	Code by Jose Julio and Randy Mackay. DIYDrones.com

	This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

	Sparkfun URL: http://www.sparkfun.com/products/8502
	datasheet: http://www.maxbotix.com/uploads/LV-MaxSonar-EZ0-Datasheet.pdf
	
	Sensor should be connected to one of the analog ports
	
	Variables:
		int raw_value : raw value from the sensor
		int distance : distance in cm
		int max_distance : maximum measurable distance (in cm)
		int min_distance : minimum measurable distance (in cm)
	
	Methods:
		init(int analogPort) : Initialization of sensor
		read() : read value from analog port and returns the distance (in cm)
		
*/

// AVR LibC Includes
#include "WConstants.h"
#include "AP_RangeFinder_MaxsonarLV.h"

// Constructor //////////////////////////////////////////////////////////////
AP_RangeFinder_MaxsonarLV::AP_RangeFinder_MaxsonarLV()
{
    max_distance = AP_RANGEFINDER_MAXSONARLV_MAX_DISTANCE;
	min_distance = AP_RANGEFINDER_MAXSONARLV_MIN_DISTANCE;
}

// Public Methods //////////////////////////////////////////////////////////////