com.raspoid.additionalcomponents

Class IRObstacleAvoidanceModule

java.lang.Object

com.raspoid.GPIOComponent

com.raspoid.additionalcomponents.IRObstacleAvoidanceModule

All Implemented Interfaces:

Component

public class IRObstacleAvoidanceModule
extends GPIOComponent

An IR obstacle avoidance module uses infrared reflection principle to detect obstacles.

When there is no object ahead, infrared-receiver cannot receive signals; when there is an object ahead, it will block and reflect infrared light, then infrared-receiver can receive signals.

Notes:

• With the sunfounder IR obstacle avoidance module, the detection distance of the infrared sensor is adjustable. You may adjust it with the potentiometer: between 0 and ~7cm.
• If the obstacle is black, it will not reflect the IR signals.

Datasheet: Differential Comparator

Example of use: IRObstacleAvoidanceModuleExample

Field Summary

Fields

Modifier and Type	Field and Description
protected com.pi4j.io.gpio.GpioPinDigitalInput	digitalInput

Fields inherited from class com.raspoid.GPIOComponent

gpio

Constructor Summary

Constructors

Constructor and Description
IRObstacleAvoidanceModule(GPIOPin pin) Constructor for a new infrared obstacle avoidance module using a specific Gpio pin.

Method Summary

Modifier and Type	Method and Description
com.pi4j.io.gpio.GpioPinDigitalInput	getGpioPinDigitalInput() Get the pi4j GpioPinDigitalInput corresponding to this IR obstacle avoidance module.
boolean	obstacleDetected() Returns true if an obstacle is currently detected by the module.

Methods inherited from class com.raspoid.GPIOComponent

getType

Methods inherited from class java.lang.Object

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

Field Detail

digitalInput

protected final com.pi4j.io.gpio.GpioPinDigitalInput digitalInput

Constructor Detail

IRObstacleAvoidanceModule

public IRObstacleAvoidanceModule(GPIOPin pin)

Constructor for a new infrared obstacle avoidance module using a specific Gpio pin.

Parameters:

pin - the Gpio pin to use to deal with the module.

Method Detail

obstacleDetected

public boolean obstacleDetected()

Returns true if an obstacle is currently detected by the module.

Returns:

true if an obstacle is currently detected by the module.

getGpioPinDigitalInput

public com.pi4j.io.gpio.GpioPinDigitalInput getGpioPinDigitalInput()

Get the pi4j GpioPinDigitalInput corresponding to this IR obstacle avoidance module.

This can be usefull to add custom listeners to easily react when the module detects an obstacle.

Returns:

the pi4j GpioPinDigitalInput corresponding to this IR obstacle avoidance module.