ESP32H2: Improve examples documentation (#598)

* style: 🎨 Improve print format

* docs: 📝 Update advanced_serial documentation

* docs: 📝 Update examples documentation

esp32-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO16
+//! - RX => GPIO17
 
 #![no_std]
 #![no_main]
@@ -71,7 +75,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32c2-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -72,7 +76,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32c3-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -79,7 +83,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32c6-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -80,7 +84,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32h2-hal/examples/advanced_serial.rs

@@ -2,6 +2,14 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -80,7 +88,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32h2-hal/examples/aes.rs

@@ -1,3 +1,5 @@
+//! Encrypt/Decrypt a message using AES
+
 #![no_std]
 #![no_main]
 use aes::{

esp32h2-hal/examples/mcpwm.rs

@@ -1,7 +1,7 @@
 //! Uses timer0 and operator0 of the MCPWM0
 //!
 //!  to output a 50% duty
-//! signal at 16 kHz.
+//! signal at 20 kHz.
 //!
 //! The signal will be output to the pin assigned to `pin`. (GPIO4)
 

esp32s2-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -71,7 +75,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }
 

esp32s3-hal/examples/advanced_serial.rs

@@ -2,6 +2,10 @@
 //! You can short the TX and RX pin and see it reads what was written.
 //! Additionally you can connect a logic analzyer to TX and see how the changes
 //! of the configuration change the output signal.
+//!
+//! The following wiring is assumed:
+//! - TX => GPIO1
+//! - RX => GPIO2
 
 #![no_std]
 #![no_main]
@@ -71,7 +75,7 @@ fn main() -> ! {
         let read = block!(serial1.read());
 
         match read {
-            Ok(read) => println!("Read {:02x}", read),
+            Ok(read) => println!("Read 0x{:02x}", read),
             Err(err) => println!("Error {:?}", err),
         }