com.raspoid

Class GPIOComponent

java.lang.Object

com.raspoid.GPIOComponent

All Implemented Interfaces:

Component

Direct Known Subclasses:

ActiveBuzzer, Button, IRObstacleAvoidanceModule, IRReceiver, LED, TrackingSensor, UltrasonicHCSR04

public class GPIOComponent
extends java.lang.Object
implements Component

This class is used as an abstraction for each component using classical Gpio pins from the Raspberry Pi.

A classical pin means a pin that is not reserved for I2C, UART or PWM components.

You can easily access the corresponding pins using the GPIOPin enum created for this.

Field Summary

Fields

Modifier and Type	Field and Description
protected static com.pi4j.io.gpio.GpioController	gpio The default instance of GpioController.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GPIOComponent() Protected constructor to hide the implicit public one.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getType() Get the String representation of the type of the component.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

gpio

protected static final com.pi4j.io.gpio.GpioController gpio

The default instance of GpioController.

The GpioFactory.getInstance() is not a thread safe singleton pattern implementation. Implementation does not provide any synchronization or mechanisms to prevent instantiation of two instances. We then use a static variable to share this GpioController instance with each GPIOComponent.

Constructor Detail

GPIOComponent

protected GPIOComponent()

Protected constructor to hide the implicit public one.

Method Detail

getType

public java.lang.String getType()

Description copied from interface: Component

Get the String representation of the type of the component.

Specified by:

getType in interface Component

Returns:

the String representation of the type of the component.