GP2Y0A Class Reference

C++ API for the GP2Y0A family of IR Proximity Sensors. More...

Detailed Description

• ID: gp2y0a
• Name: GP2Y0A family of IR Proximity Sensors
• Category: light
• Manufacturer: seeed
• Connection: analog

This sensor family returns an analog voltage corresponding to the distance of an object from the sensor. The voltage is lower when objects are far away; the voltage increases as objects get closer to the sensor.

  // Note, for the Grove 80cm version of this sensor, due to the way
  // it is wired, you need to plug this into the A0 port, where it
  // will use the available A1 pin for data.

  // Instantiate a GP2Y0A on analog pin A1
  upm::GP2Y0A *volts = new upm::GP2Y0A(1);
  
  // The higher the voltage (closer to AREF) the closer the object is.  NOTE:
  // the measured voltage will probably not exceed 3.3 volts.
  // Every second, print the averaged voltage value (averaged over 20 samples).
  while (shouldRun)
    {
      cout << "AREF: " << GP2Y0A_AREF 
           << ", Voltage value (higher means closer): " 
           << volts->value(GP2Y0A_AREF, SAMPLES_PER_QUERY) << endl;
      
      sleep(1);
    }

Public Member Functions
	GP2Y0A (int pin)
	~GP2Y0A ()
float	value (float aref, uint8_t samples)

Constructor & Destructor Documentation

GP2Y0A

(

int

pin

)

GP2Y0A sensor constructor

Parameters

pin	analog pin to use

~GP2Y0A

(

)

GP2Y0A Destructor

Member Function Documentation

float value	(	float	aref,
		uint8_t	samples
	)

Get the averaged voltage value from the sensor

Parameters

aref	the reference voltage in use (5.0 or 3.3 usually)
samples	number of samples to average over

Returns

the averaged voltage reading

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

• /var/lib/jenkins/workspace/upm-doc-stable/src/gp2y0a/gp2y0a.h
• /var/lib/jenkins/workspace/upm-doc-stable/src/gp2y0a/gp2y0a.cxx