HCSR04 Class Reference

API for the HC-SR04 Ultrasonic Sensor. More...

Detailed Description

• ID: hcsr04
• Name: Ultrasonic Distance Measuring Sensor
• Category: sound
• Manufacturer: generic
• Connection: gpio
• Link: https://www.sparkfun.com/products/13959

This module defines the HC-SR04 interface for libhcsr04

int
main(int argc, char** argv)
{
    upm::HCSR04 sonar(2, 4);
    signal(SIGINT, sig_handler);

    upm_delay(1);

    while (shouldRun) {
        std::cout << "get distance" << std::endl;
        double distance = sonar.getDistance(HCSR04_CM);
        std::cout << "distance " << distance << std::endl;
        upm_delay(2);
    }
    std::cout << "Exiting... " << std::endl;

    return 0;
}

Public Member Functions
	HCSR04 (int triggerPin, int echoPin)
	~HCSR04 ()
double	getDistance (HCSR04_U unit)

Constructor & Destructor Documentation

HCSR04	(	int	triggerPin,
		int	echoPin
	)

Instantiates an HCSR04 object

Parameters

triggerPin	Pin to trigger the sensor for distance
echoPin	Pulse response to triggering

~HCSR04

(

)

HCSR04 object destructor

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Member Function Documentation

double getDistance

(

HCSR04_U

unit

)

Gets the distance from the sensor

Parameters

unit	Selects units for measurement

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The documentation for this class was generated from the following files:

• src/hcsr04/hcsr04.hpp
• src/hcsr04/hcsr04.cxx