feat: 输出控制。

src/beep.rs

@@ -1,13 +1,12 @@
 use esp_idf_hal::gpio::OutputPin;
 use esp_idf_hal::ledc;
 use esp_idf_hal::ledc::{config::TimerConfig, Channel, Timer};
-use esp_idf_hal::peripherals::Peripherals;
 use esp_idf_hal::prelude::*;
 use esp_idf_sys::EspError;
 use std::thread;
 use std::time::Duration;
 
-type LedcChannel<P: OutputPin, T: ledc::HwTimer, C: ledc::HwChannel> = Channel<C, T, Timer<T>, P>;
+type LedcChannel<P, T, C> = Channel<C, T, Timer<T>, P>;
 
 pub struct Beep<P: OutputPin, T: ledc::HwTimer, C: ledc::HwChannel> {
     state: bool,

src/dc_out_controller.rs

@@ -0,0 +1,24 @@
+use embedded_hal::digital::blocking::OutputPin;
+
+pub struct DcOutController<T: OutputPin> {
+    pub state: bool,
+    pin: T,
+}
+
+impl<T> DcOutController<T>
+where
+    T: OutputPin,
+{
+    pub fn new(pin: T) -> DcOutController<T> {
+        return DcOutController { state: false, pin };
+    }
+
+    pub fn on(&mut self) -> Result<(), T::Error> {
+        self.state = true;
+        return self.pin.set_low();
+    }
+    pub fn off(&mut self) -> Result<(), T::Error> {
+        self.state = false;
+        return self.pin.set_high();
+    }
+}

src/main.rs

@@ -1,8 +1,9 @@
 use esp_idf_sys as _;
-use std::thread;
+use std::{thread, time::Duration};
 
 mod beep;
 mod blink;
+mod dc_out_controller;
 fn main() {
     // Temporary. Will disappear once ESP-IDF 4.4 is released, but for now it is necessary to call this function once,
     // or else some patches to the runtime implemented by esp-idf-sys might not link properly.
@@ -14,6 +15,7 @@ fn main() {
     let gpio6 = peripherals.pins.gpio6;
     let ledc_timer0 = peripherals.ledc.timer0;
     let ledc_channel0 = peripherals.ledc.channel0;
+    let dc_out_ctl_pin = peripherals.pins.gpio2;
     thread::spawn(move || {
         let mut blink =
             blink::Blink::new(gpio5.into_output().expect("Failed to set GPIO5 as output"));
@@ -30,5 +32,21 @@ fn main() {
         beep.play();
     });
 
+    thread::spawn(move || {
+        let mut dc_out_ctl = dc_out_controller::DcOutController::new(
+            dc_out_ctl_pin
+                .into_output()
+                .expect("Failed to set GPIO2 as output"),
+        );
+        while true {
+            if dc_out_ctl.state {
+                dc_out_ctl.off().expect("Failed to turn DC_OUT_CTL off");
+            } else {
+                dc_out_ctl.on().expect("Failed to turn DC_OUT_CTL on");
+            }
+            thread::sleep(Duration::from_millis(500));
+        }
+    });
+
     println!("Hello, world!");
 }