Package com.diozero.internal.provider.builtin

Class SysFsAnalogInputDevice

java.lang.Object

com.diozero.internal.spi.AbstractDevice

com.diozero.internal.spi.AbstractInputDevice<AnalogInputEvent>

com.diozero.internal.provider.builtin.SysFsAnalogInputDevice

All Implemented Interfaces:

DeviceInterface, AnalogInputDeviceInterface, InternalDeviceInterface, AutoCloseable

public class SysFsAnalogInputDevice
extends AbstractInputDevice<AnalogInputEvent>
implements AnalogInputDeviceInterface

Constructor Summary

Constructors

Constructor	Description
SysFsAnalogInputDevice(DefaultDeviceFactory deviceFactory, String key, int device, int adcNumber)

Method Summary

Modifier and Type	Method	Description
protected void	closeDevice()
int	getAdcNumber()
float	getValue()	Read the analog value in the range 0..1 or -1..1 (if the ADC type is signed)

Methods inherited from class com.diozero.internal.spi.AbstractInputDevice

accept, disableListener, enableListener, generatesEvents, removeListener, setListener

Methods inherited from class com.diozero.internal.spi.AbstractDevice

close, getDeviceFactory, getKey, isOpen

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.diozero.internal.spi.AnalogInputDeviceInterface

generatesEvents, getMode, removeListener, setListener

Methods inherited from interface com.diozero.api.DeviceInterface

close

Methods inherited from interface com.diozero.internal.spi.InternalDeviceInterface

getKey, isOpen

Constructor Details

SysFsAnalogInputDevice

public SysFsAnalogInputDevice(DefaultDeviceFactory deviceFactory,
String key,
int device,
int adcNumber)

Method Details

getAdcNumber

public int getAdcNumber()

Specified by:

getAdcNumber in interface AnalogInputDeviceInterface

getValue

public float getValue()
               throws RuntimeIOException

Description copied from interface: AnalogInputDeviceInterface

Read the analog value in the range 0..1 or -1..1 (if the ADC type is signed)

Specified by:

getValue in interface AnalogInputDeviceInterface

Returns:

the unscaled value (-1..1)

Throws:

RuntimeIOException - if an I/O error occurs

closeDevice

protected void closeDevice()
                    throws RuntimeIOException

Specified by:

closeDevice in class AbstractDevice

Throws:

RuntimeIOException