if let 構文を採用してみた

src/main.rs

@@ -6,24 +6,21 @@ use log::*; // log levelを使う為に必要
 use std::time::Duration;
 use std::thread;
 
-// let on = State::On = pin.is_low();
-// let off = State::Off = pin.is_high();
-
 fn main() -> bool {
     EspLogger::initialize_default(); // ロギングの初期化
 
     let peripherals = Peripherals::take().unwrap();
     let pin = PinDriver::input(peripherals.pins.gpio35)?;
 
-    let mut last_state = off; // 初期状態を保存
+    let mut last_state = pin.is_high(); // 初期状態を保存
     let debounce_delay = Duration::from_millis(50); // チャタリング対策の遅延
 
     loop {
-        let current_state = pin.is_high(); // 現在の状態を取得
-            match  {
-                pin.is_low() => info!("HelloButton!"),
-                pin.is_high() => thread::sleep(Duration::from_millis(10)),
-                }
+        let current_state = pin.is_low(); // 現在の状態を取得
+            if let last_state = current_state {
+                info!("HelloButton!")
+            } 
+        thread::sleep(Duration::from_millis(10)); // 状態確認の間隔
         } 
         /*
         if current_state != last_state {
@@ -39,5 +36,4 @@ fn main() -> bool {
         }
         thread::sleep(Duration::from_millis(10)); // 状態確認の間隔
         */
-    }
 }