Module esp_idf_hal::ledc

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Expand description

LED Control peripheral (which also creates PWM signals for other purposes)

Interface to the LED Control (LEDC) peripheral

This is an initial implementation supporting the generation of PWM signals but no chrome and spoilers like fading.


Create a 25 kHz PWM signal with 75 % duty cycle on GPIO 1

use esp_idf_hal::ledc::{config::TimerConfig, Channel, LedcDriver, LedcTimerDriver, Timer};
use esp_idf_hal::peripherals::Peripherals;
use esp_idf_hal::prelude::*;

let peripherals = Peripherals::take().unwrap();
let timer_driver = LedcTimerDriver::new(peripherals.ledc.timer0, &TimerConfig::default().frequency(25.kHz().into()));
let mut driver = LedcDriver::new(peripherals.ledc.channel0, timer_driver, peripherals.pins.gpio1)?;

let max_duty = driver.get_max_duty()?;
driver.set_duty(max_duty * 3 / 4)?;

See the examples/ folder of this repository for more.


Types for configuring the LED Control peripheral


The LED Control device peripheral
LED Control driver
LED Control timer driver


Ledc Speed Mode


LED Control peripheral output channel
LED Control peripheral timer