Struct rust_gpiozero::output_devices::PWMOutputDevice

pub struct PWMOutputDevice { /* fields omitted */ }

Generic output device configured for software pulse-width modulation (PWM). 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.

Methods

impl PWMOutputDevice

pub fn new(pin: u8) -> PWMOutputDevice

Returns a PWMOutputDevice with the pin number given

• pin - The GPIO pin which the device is attached to

pub fn set_value(&mut self, duty: f64)

Set the duty cycle of the PWM device. 0.0 is off, 1.0 is fully on. Values in between may be specified for varying levels of power in the device.

pub fn set_blink_count(&mut self, n: i32)

Set the number of times to blink the device

• n - Number of times to blink

pub fn set_active_high(&mut self, value: bool)

Set the state for active_high

pub fn active_high(&self) -> bool

When True, the value property is True when the device's pin is high. When False the value property is True when the device's pin is low (i.e. the value is inverted). Be warned that changing it will invert value (i.e. changing this property doesn't change the device's pin state - it just changes how that state is interpreted).

pub fn on(&mut self)

Turns the device on.

pub fn off(&mut self)

Turns the device off.

pub fn blink(
    &mut self,
    on_time: f32,
    off_time: f32,
    fade_in_time: f32,
    fade_out_time: f32
)

Make the device turn on and off repeatedly

• on_time - Number of seconds on
• off_time - Number of seconds off
• fade_in_time - Number of seconds to spend fading in
• fade_out_time - Number of seconds to spend fading out

pub fn pulse(&mut self, fade_in_time: f32, fade_out_time: f32)

Make the device fade in and out repeatedly.

• fade_in_time - Number of seconds to spend fading in
• fade_out_time - Number of seconds to spend fading out