PWM class

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.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

disable() → void
Disables the PWM output.
dispose() → void
Releases all internal native resources.
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 nonexistent 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.