PWM class Null safety

PWM wrapper functions for Linux userspace sysfs PWMs.

c-periphery PCM documentation.

Constructors

PWM(int chip, int channel)

Properties

channel int
final
chip int
final
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

disable() → void
Disables the PWM output.
dispose() → void
Releases all interal native resoures.
enable() → void
Enables the PWM output.
getChannel() int
Returns the channel number of the PWM handle.
getChip() int
Return the chip number of the PWM handle.
getDutyCycle() double
Gets the duty cycle as a ratio between 0.0 to 1.0 in second of the PWM.
getDutyCycleNs() int
Gets the duty cycle in nanoseconds of the PWM.
getEnabled() bool
getErrno() int
Returns the libc errno of the last failure that occurred.
getFrequency() double
Gets the frequency in Hz of the PWM.
getPeriod() double
Gets the period in seconds of the PWM.
getPeriodNs() int
Gets the period in nanoseconds of the PWM.
getPolarity() Polarity
Returns the polarity of the PWM.
getPWMinfo() String
Returns a string representation of the PWM handle.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
setDutyCycle(double dutyCycle) → void
Sets the dutyCycle as a ratio between 0.0 to 1.0 in second of the PWM.
setDutyCycleNs(int nanoseconds) → void
Sets the duty cycle in nanoseconds of the PWM.
setEnabled(bool flag) → void
Sets the output state of the PWM.
setFrequency(double frequency) → void
Sets the frequency in Hz of the PWM.
setPeriod(double seconds) → void
Sets the period in seconds of the PWM.
setPeriodNs(int nanoseconds) → void
Sets the period in nanoseconds of the PWM.
setPolarity(Polarity polarity) → void
Sets the output polarity of the PWM.
toString() String
A string representation of this object. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited

Static Methods

getPWMerrorCode(int value) PWMerrorCode
Converts the native error code value to PWMerrorCode.