Bump depependencies and change GPIO impl to digital::v2

Signed-off-by: Daniel Egger <daniel@eggers-club.de>

Author: therealprof

Cargo.toml

@@ -19,22 +19,22 @@ version = "0.3.0"
 readme = "README.md"
 
 [dependencies]
-cortex-m = "0.6.0"
-cortex-m-rt = "0.6.8"
+cortex-m = "0.6"
+cortex-m-rt = "0.6"
 
 [dependencies.embedded-hal]
 features = ["unproven"]
-version = "0.2.2"
+version = "0.2"
 
 [dependencies.stm32f4xx-hal]
 default-features = false
 features = ["rt", "stm32f407"]
-version = "0.5.0"
+version = "0.6"
 
 [dev-dependencies]
-ssd1306 = "0.2.4"
-nb = "0.1.2"
-panic-halt = "0.2.0"
+ssd1306 = "0.2"
+nb = "0.1"
+panic-halt = "0.2"
 
 [profile.dev]
 debug = true

src/led.rs

@@ -123,7 +123,7 @@ impl Led {
 
     /// Toggles the LED
     pub fn toggle(&mut self) {
-        if self.pin.is_low() {
+        if let Ok(true) = self.pin.is_low() {
             self.pin.set_high();
         } else {
             self.pin.set_low();