RPR220 Class Reference

API for the RPR220-based Grove IR Reflective Sensor. More...

Detailed Description

• ID: rpr220
• Name: RPR220 IR Reflective Sensor
• Other Names: Grove IR Reflective Sensor
• Category: light
• Manufacturer: seeed
• Link: http://www.seeedstudio.com/wiki/Grove_-_Infrared_Reflective_Sensor
• Connection: gpio
• Kit: tsk hak

UPM module for the Grove IR reflective sensor. The sensitivity can be adjusted with the potentiometer on the sensor module. It has a range of approximately 15 mm, and a quick response time.

It detects high-contrast dark areas on a light background.

This module allows the user to determine the current status (black detected or not). Additionally, if desired, an interrupt service routine (ISR) can be installed that is called when black is detected. Either method can be used, depending on your use case.

        // This example uses a simple method to determine current status

        // Instantiate an RPR220 digital pin D2
        upm_rpr220.RPR220 sensor = new upm_rpr220.RPR220(2);

        while (true) {
            if (sensor.blackDetected())
                System.out.println("Black detected");
            else
                System.out.println("Black NOT detected");

            Thread.sleep(100);
        }

        // This example uses an interrupt handler to increment a counter

        // Instantiate an RPR220 digital pin D2
        upm_rpr220.RPR220 sensor = new upm_rpr220.RPR220(2);

        IsrCallback callback = new RPRISR();
        sensor.installISR(callback);

        while (true) {
            System.out.println("Counter: " + counter);
            Thread.sleep(1000);
        }

Public Member Functions
synchronized void	delete ()
	RPR220 (int pin)
boolean	blackDetected ()
void	installISR (IsrCallback cb)
void	uninstallISR ()

Constructor & Destructor Documentation

RPR220

(

int

pin

)

RPR220 constructor

Parameters

pin	Digital pin to use

Member Function Documentation

boolean blackDetected

(

)

Gets the status of the pin; true means black has been detected

Returns

True if the sensor has detected black

void uninstallISR

(

)

Uninstalls the previously installed ISR

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

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/rpr220/RPR220.java