ev3dev.hardware

Class Battery

java.lang.Object

ev3dev.hardware.Device

ev3dev.hardware.EV3DevSysfs

ev3dev.hardware.Battery

All Implemented Interfaces:

Power, java.io.Closeable, java.lang.AutoCloseable

public class Battery
extends EV3DevSysfs
implements Power

The class Battery interacts with EV3Dev to get information about battery used.

See Also:

https://www.kernel.org/doc/Documentation/power/power_supply_class.txt, https://github.com/ev3dev/ev3dev-lang/blob/develop/wrapper-specification.md#direct-attribute-mappings-5

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	BATTERY_PATH
private java.lang.String	CURRENT
private java.lang.String	DEVICE_ROOT_PATH
private static Battery	Instance
private java.lang.String	VOLTAGE

Fields inherited from class ev3dev.hardware.Device

closeList

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Battery()

Method Summary

Modifier and Type	Method and Description
float	getBatteryCurrent() Returns the current of the battery in microamps.
static Battery	getInstance()
float	getVoltage() Returns voltage of the battery in microvolts.

Methods inherited from class ev3dev.hardware.EV3DevSysfs

getElements, readFloat, readInteger, readString, writeInteger, writeString

Methods inherited from class ev3dev.hardware.Device

close, releaseOnClose

Methods inherited from class java.lang.Object

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

Field Detail

DEVICE_ROOT_PATH

private final java.lang.String DEVICE_ROOT_PATH

See Also:

Constant Field Values

BATTERY_PATH

private final java.lang.String BATTERY_PATH

See Also:

Constant Field Values

VOLTAGE

private final java.lang.String VOLTAGE

See Also:

Constant Field Values

CURRENT

private final java.lang.String CURRENT

See Also:

Constant Field Values

Instance

private static Battery Instance

Constructor Detail

Battery

private Battery()

Method Detail

getInstance

public static Battery getInstance()

getVoltage

public float getVoltage()

Returns voltage of the battery in microvolts.

Specified by:

getVoltage in interface Power

Returns:

voltage

getBatteryCurrent

public float getBatteryCurrent()

Returns the current of the battery in microamps.

Specified by:

getBatteryCurrent in interface Power

Returns:

current