Uses of Class
com.pi4j.io.exception.IOException

Packages that use IOException

Package	Description
com.pi4j.io
com.pi4j.io.exception
com.pi4j.io.gpio.digital
com.pi4j.io.pwm

Uses of IOException in com.pi4j.io

Methods in com.pi4j.io that throw IOException

Modifier and Type	Method	Description
T	OnOffWrite.off()
T	OnOffWrite.on()
default T	OnOff.toggle()

Uses of IOException in com.pi4j.io.exception

Subclasses of IOException in com.pi4j.io.exception

Modifier and Type	Class	Description
class	IOAlreadyExistsException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IOBoundsException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IOIllegalValueException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IOInvalidIDException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IONotFoundException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IOReadException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.
class	IOShutdownException	This exception is thrown if a platform assignment is attempted when a platform instance has already been assigned.

Uses of IOException in com.pi4j.io.gpio.digital

Methods in com.pi4j.io.gpio.digital that throw IOException

Modifier and Type	Method	Description
default DigitalOutput	DigitalOutput.high()	high.
default DigitalOutput	DigitalOutput.low()	low.
DigitalOutput	DigitalOutputBase.off()
DigitalOutput	DigitalOutputBase.on()
default DigitalOutput	DigitalOutput.pulse(int interval, TimeUnit unit)	pulse.
default DigitalOutput	DigitalOutput.pulse(int interval, TimeUnit unit, DigitalState state)	pulse.
DigitalOutput	DigitalOutput.pulse(int interval, TimeUnit unit, DigitalState state, Callable<Void> callback)	pulse.
DigitalOutput	DigitalOutputBase.pulse(int interval, TimeUnit unit, DigitalState state, Callable<Void> callback)	pulse.
default DigitalOutput	DigitalOutput.pulseHigh(int interval, TimeUnit unit)	pulseHigh.
default DigitalOutput	DigitalOutput.pulseLow(int interval, TimeUnit unit)	pulseLow.
default DigitalOutput	DigitalOutput.setState(boolean state)	setState.
default DigitalOutput	DigitalOutput.setState(byte state)	setState.
default DigitalOutput	DigitalOutput.setState(double state)	setState.
default DigitalOutput	DigitalOutput.setState(float state)	setState.
default DigitalOutput	DigitalOutput.setState(int state)	setState.
default DigitalOutput	DigitalOutput.setState(long state)	setState.
default DigitalOutput	DigitalOutput.setState(short state)	setState.
DigitalOutput	DigitalOutput.state(DigitalState state)	state.
DigitalOutput	DigitalOutputBase.state(DigitalState state)	state.
default DigitalOutput	DigitalOutput.toggle()	toggle.

Uses of IOException in com.pi4j.io.pwm

Methods in com.pi4j.io.pwm that throw IOException

Modifier and Type	Method	Description
default int	Pwm.actualFrequency()	Get the actual frequency value in Hertz (number of cycles per second) applied by the PWM signal generator after the PWM signal is turned 'ON'.
Pwm	Pwm.applyPreset(String name)	Apply/recall a PwmPreset by name to this PWM instance.
Pwm	PwmBase.applyPreset(String name)	Apply/recall a PwmPreset by name to this PWM instance.
default float	Pwm.dutyCycle()	Get the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
default Pwm	Pwm.dutyCycle(Number dutyCycle)	Set the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
default int	Pwm.frequency()	Get the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should attempt to output when the PWM signal is turned 'ON'.
default Pwm	Pwm.frequency(int frequency)	Set the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should use when the PWM signal is turned 'ON'.
int	Pwm.getActualFrequency()	Get the actual frequency value in Hertz (number of cycles per second) applied by the PWM signal generator after the PWM signal is turned 'ON'.
int	PwmBase.getActualFrequency()	Get the actual frequency value in Hertz (number of cycles per second) applied by the PWM signal generator after the PWM signal is turned 'ON'.
float	Pwm.getDutyCycle()	Get the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
float	PwmBase.getDutyCycle()	Get the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
int	Pwm.getFrequency()	Get the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should attempt to output when the PWM signal is turned 'ON'.
int	PwmBase.getFrequency()	Get the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should attempt to output when the PWM signal is turned 'ON'.
Pwm	Pwm.off()	Turn the PWM signal [OFF] by applying a zero frequency and zero duty-cycle to the PWM pin.
Pwm	Pwm.on()	Turn the PWM signal [ON] using the configured frequency and duty-cycle.
default Pwm	Pwm.on(Number dutyCycle)	Turn the PWM signal [ON] using a specified duty-cycle (%) at the pre-configured frequency (Hz).
default Pwm	Pwm.on(Number dutyCycle, int frequency)	Turn the PWM signal [ON] using a specified duty-cycle (%) at the pre-configured frequency (Hz).
void	Pwm.setDutyCycle(Number dutyCycle)	Set the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
void	PwmBase.setDutyCycle(Number dutyCycle)	Set the duty-cycle value as a decimal value that represents the percentage of the ON vs OFF time of the PWM signal for each period.
void	Pwm.setFrequency(int frequency)	Set the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should use when the PWM signal is turned 'ON'.
void	PwmBase.setFrequency(int frequency)	Set the configured frequency value in Hertz (number of cycles per second) that the PWM signal generator should use when the PWM signal is turned 'ON'.