UltraSonic Class Reference

API for Grove Ultrasonic Ranger. More...

Detailed Description

• ID: ultrasonic
• Name: Ultrasonic Proximity Sensor
• Category: sound
• Manufacturer: seeed
• Link: http://wiki.seeed.cc/Grove-Ultrasonic_Ranger/
• Connection: gpio

This Grove Ultrasonic sensor is a non-contact distance measurement module which is compatible with the Grove system. It is designed for easy modular project usage with industrial performance. Detection ranges from 3 cm (1.2") to 4 m (13'1.5") and works best when the object is within a 30 degree angle relative to the sensor.

    // upm::UltraSonic *sonar = NULL;
    upm::UltraSonic sonar(2);
    while (running) {
        int width = sonar.getDistance();
        printf("Echo width = %d\n", width);
        printf("Distance inches = %f.2\n\n", width / 148.0);
        upm_delay(3);
    }

Public Member Functions
	UltraSonic (int pin)
	~UltraSonic ()
int	getDistance ()
std::string	name ()
bool	working ()

Constructor & Destructor Documentation

UltraSonic

(

int

pin

)

Instantiates a UltraSonic object

Parameters

pin	pin for triggering the sensor for distance and for receiving pulse response

~UltraSonic

(

)

UltraSonic object destructor.

Member Function Documentation

int getDistance

(

)

Returns the echo's pulse width from the sensor in microseconds. Divide by 58 to convert distance to centimetres. Divide by 148 to convert distance to inches.

std::string name ( )

inline

Return name of the component

bool working ( )

inline

Returns true while the sensor is busy waiting for the echo pulse

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

• src/ultrasonic/ultrasonic.hpp
• src/ultrasonic/ultrasonic.cxx