upm  1.7.1
Sensor/Actuator repository for libmraa (v2.0.0)
Public Member Functions

API for Grove Ultrasonic Ranger. More...

Detailed Description

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);

Public Member Functions

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

Constructor & Destructor Documentation

UltraSonic ( int  pin)

Instantiates a UltraSonic object

pinpin 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 ( )

Return name of the component

bool working ( )

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

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