Struct wiringpi::pin::SoftPwmPin

pub struct SoftPwmPin<Pin>(_, _);

A pin with software controlled PWM output.

Due to limitations of the chip only one pin is able to do hardware-controlled PWM output. The SoftPwmPins on the other hand allow for all GPIOs to output PWM signals.

The pulse width of the signal will be 100μs with a value range of [0,100] (where 0 is a constant low and 100 is a constant high) resulting in a frequenzy of 100 Hz.

Important: In order to use software PWM pins wiringPi has to be setup in GPIO mode via setup_gpio().

Methods

impl<P: Pin + RequiresRoot> SoftPwmPin<P>

pub fn new(pin: c_int) -> SoftPwmPin<P>

Configures the given pin to output a software controlled PWM signal.

pub fn number(&self) -> c_int

pub fn pwm_write(&self, value: c_int)

Sets the duty cycle.

value has to be in the interval [0,100].

pub fn pwm_stop(self)

Stops the software handling of this pin.

Note: In order to control this pin via software PWM again it will need to be recreated using new().

pub fn into_input(self) -> InputPin<P>

pub fn into_output(self) -> OutputPin<P>

impl<P: Pin + Pwm> SoftPwmPin<P>

pub fn into_pwm(self) -> PwmPin<P>

impl<P: Pin + GpioClock> SoftPwmPin<P>

pub fn into_clock(self) -> ClockPin<P>

Trait Implementations