From a0548e42cd89cf18fe7094c2e2fc15a59e8be84f Mon Sep 17 00:00:00 2001
From: Rhovian <atomicjab@proton.me>
Date: Sun, 5 May 2024 23:21:46 +0200
Subject: [PATCH 1/3] examples: Apply formatting changes

---
 examples/arduino-leonardo/src/bin/leonardo-i2cdetect.rs   | 6 ++++--
 examples/arduino-mega1280/src/bin/mega1280-i2cdetect.rs   | 6 ++++--
 examples/arduino-mega2560/src/bin/mega2560-i2cdetect.rs   | 6 ++++--
 examples/arduino-uno/src/bin/uno-16chan-servo-driver.rs   | 3 ++-
 examples/arduino-uno/src/bin/uno-74hc595.rs               | 8 ++++----
 examples/arduino-uno/src/bin/uno-eeprom.rs                | 4 ++--
 examples/arduino-uno/src/bin/uno-ext-interrupt.rs         | 8 ++++----
 .../arduino-uno/src/bin/uno-simple-pwm-embedded-hal.rs    | 2 +-
 examples/atmega2560/src/bin/atmega2560-blink.rs           | 2 +-
 examples/atmega2560/src/bin/atmega2560-spi-feedback.rs    | 2 +-
 examples/nano168/src/bin/nano168-i2cdetect.rs             | 6 ++++--
 examples/nano168/src/bin/nano168-millis.rs                | 1 -
 examples/sparkfun-promicro/src/bin/promicro-i2cdetect.rs  | 6 ++++--
 13 files changed, 35 insertions(+), 25 deletions(-)

diff --git a/examples/arduino-leonardo/src/bin/leonardo-i2cdetect.rs b/examples/arduino-leonardo/src/bin/leonardo-i2cdetect.rs
index 8a3496b472..e6af7f4f4b 100644
--- a/examples/arduino-leonardo/src/bin/leonardo-i2cdetect.rs
+++ b/examples/arduino-leonardo/src/bin/leonardo-i2cdetect.rs
@@ -18,9 +18,11 @@ fn main() -> ! {
     );
 
     ufmt::uwriteln!(&mut serial, "Write direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write)
+        .unwrap_infallible();
     ufmt::uwriteln!(&mut serial, "\r\nRead direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read)
+        .unwrap_infallible();
 
     loop {}
 }
diff --git a/examples/arduino-mega1280/src/bin/mega1280-i2cdetect.rs b/examples/arduino-mega1280/src/bin/mega1280-i2cdetect.rs
index 676266c322..59946ede22 100644
--- a/examples/arduino-mega1280/src/bin/mega1280-i2cdetect.rs
+++ b/examples/arduino-mega1280/src/bin/mega1280-i2cdetect.rs
@@ -18,9 +18,11 @@ fn main() -> ! {
     );
 
     ufmt::uwriteln!(&mut serial, "Write direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write)
+        .unwrap_infallible();
     ufmt::uwriteln!(&mut serial, "\r\nRead direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read)
+        .unwrap_infallible();
 
     loop {}
 }
diff --git a/examples/arduino-mega2560/src/bin/mega2560-i2cdetect.rs b/examples/arduino-mega2560/src/bin/mega2560-i2cdetect.rs
index 676266c322..59946ede22 100644
--- a/examples/arduino-mega2560/src/bin/mega2560-i2cdetect.rs
+++ b/examples/arduino-mega2560/src/bin/mega2560-i2cdetect.rs
@@ -18,9 +18,11 @@ fn main() -> ! {
     );
 
     ufmt::uwriteln!(&mut serial, "Write direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write)
+        .unwrap_infallible();
     ufmt::uwriteln!(&mut serial, "\r\nRead direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read)
+        .unwrap_infallible();
 
     loop {}
 }
diff --git a/examples/arduino-uno/src/bin/uno-16chan-servo-driver.rs b/examples/arduino-uno/src/bin/uno-16chan-servo-driver.rs
index e44a7d921c..b30ebc7c73 100644
--- a/examples/arduino-uno/src/bin/uno-16chan-servo-driver.rs
+++ b/examples/arduino-uno/src/bin/uno-16chan-servo-driver.rs
@@ -57,7 +57,8 @@ fn main() -> ! {
         arduino_hal::delay_ms(500);
 
         pwm.set_channel_off(Channel::C0, current).unwrap();
-        pwm.set_channel_off(Channel::C1, servo_min + (servo_max - current)).unwrap();
+        pwm.set_channel_off(Channel::C1, servo_min + (servo_max - current))
+            .unwrap();
 
         if current == servo_max {
             factor -= 1;
diff --git a/examples/arduino-uno/src/bin/uno-74hc595.rs b/examples/arduino-uno/src/bin/uno-74hc595.rs
index 6cf09708b8..97a64c3d9d 100644
--- a/examples/arduino-uno/src/bin/uno-74hc595.rs
+++ b/examples/arduino-uno/src/bin/uno-74hc595.rs
@@ -1,11 +1,11 @@
 /*!
- * 
+ *
  * Code sample to work with 74HC595 shift register,
  * wired as in https://lastminuteengineers.com/74hc595-shift-register-arduino-tutorial/
- * 
+ *
  * Connections
  * -----------
- * 
+ *
  * - D4: SER (14)
  * - D5: RCLK (12)
  * - D6: SRCLK (11)
@@ -66,7 +66,7 @@ fn main() -> ! {
 
         for i in 0..8 {
             data |= 1 << i;
-            
+
             update_shift_register(&mut data_pin, &mut latch_pin, &mut clock_pin, &data);
             arduino_hal::delay_ms(500);
         }
diff --git a/examples/arduino-uno/src/bin/uno-eeprom.rs b/examples/arduino-uno/src/bin/uno-eeprom.rs
index 2ddb2024dc..5f0e04960f 100644
--- a/examples/arduino-uno/src/bin/uno-eeprom.rs
+++ b/examples/arduino-uno/src/bin/uno-eeprom.rs
@@ -20,7 +20,7 @@ fn main() -> ! {
     // KNOWN ISSUE: Avoid to read entire eeprom capacity at once
     // See: https://github.com/Rahix/avr-hal/issues/410
     let mut data = [0_u8; 10];
-    
+
     let _start_address: u16 = 0;
 
     if ep.read(0, &mut data).is_err() {
@@ -33,7 +33,7 @@ fn main() -> ! {
         ufmt::uwriteln!(&mut serial, "{}", i).unwrap_infallible();
     }
 
-    let _=ep.erase(0, arduino_hal::Eeprom::CAPACITY);
+    let _ = ep.erase(0, arduino_hal::Eeprom::CAPACITY);
 
     loop {}
 }
diff --git a/examples/arduino-uno/src/bin/uno-ext-interrupt.rs b/examples/arduino-uno/src/bin/uno-ext-interrupt.rs
index 84fddb5f6b..2279841dfa 100644
--- a/examples/arduino-uno/src/bin/uno-ext-interrupt.rs
+++ b/examples/arduino-uno/src/bin/uno-ext-interrupt.rs
@@ -1,18 +1,18 @@
 /*!
  * Blinks a 4 leds in sequence on pins D3 - D6. When an external interrupt on D2/INT0 comes in
  * the sequence is reversed.
- * 
- * Note: The use of the either crate requires the deactivation of std to use it in core. See the Cargo.toml 
+ *
+ * Note: The use of the either crate requires the deactivation of std to use it in core. See the Cargo.toml
  * in this directory for details.
  */
 #![no_std]
 #![no_main]
 #![feature(abi_avr_interrupt)]
 
-use panic_halt as _;
-use core::sync::atomic::{AtomicBool, Ordering};
 use arduino_hal::port::{mode, Pin};
+use core::sync::atomic::{AtomicBool, Ordering};
 use either::*;
+use panic_halt as _;
 
 static REVERSED: AtomicBool = AtomicBool::new(false);
 
diff --git a/examples/arduino-uno/src/bin/uno-simple-pwm-embedded-hal.rs b/examples/arduino-uno/src/bin/uno-simple-pwm-embedded-hal.rs
index 991ea358d4..e0e0e2a786 100644
--- a/examples/arduino-uno/src/bin/uno-simple-pwm-embedded-hal.rs
+++ b/examples/arduino-uno/src/bin/uno-simple-pwm-embedded-hal.rs
@@ -5,9 +5,9 @@
 #![no_std]
 #![no_main]
 
+use arduino_hal::simple_pwm::*;
 use embedded_hal::delay::DelayNs;
 use embedded_hal::pwm::SetDutyCycle;
-use arduino_hal::simple_pwm::*;
 use panic_halt as _;
 
 fn fade(led: &mut impl SetDutyCycle, delay: &mut impl DelayNs) -> ! {
diff --git a/examples/atmega2560/src/bin/atmega2560-blink.rs b/examples/atmega2560/src/bin/atmega2560-blink.rs
index bd10bd71e2..e0bd3301f1 100644
--- a/examples/atmega2560/src/bin/atmega2560-blink.rs
+++ b/examples/atmega2560/src/bin/atmega2560-blink.rs
@@ -1,8 +1,8 @@
 #![no_std]
 #![no_main]
 
-use panic_halt as _;
 use embedded_hal::delay::DelayNs;
+use panic_halt as _;
 
 // Define core clock. This can be used in the rest of the project.
 type CoreClock = atmega_hal::clock::MHz16;
diff --git a/examples/atmega2560/src/bin/atmega2560-spi-feedback.rs b/examples/atmega2560/src/bin/atmega2560-spi-feedback.rs
index 37dfc6213a..b4c657eb2c 100644
--- a/examples/atmega2560/src/bin/atmega2560-spi-feedback.rs
+++ b/examples/atmega2560/src/bin/atmega2560-spi-feedback.rs
@@ -9,9 +9,9 @@
 #![no_std]
 #![no_main]
 
+use atmega_hal::delay::Delay;
 use atmega_hal::spi;
 use atmega_hal::usart::{Baudrate, Usart};
-use atmega_hal::delay::Delay;
 use embedded_hal::delay::DelayNs;
 use embedded_hal::spi::SpiBus;
 use panic_halt as _;
diff --git a/examples/nano168/src/bin/nano168-i2cdetect.rs b/examples/nano168/src/bin/nano168-i2cdetect.rs
index dc69ef4cf6..ae2bf7ef18 100644
--- a/examples/nano168/src/bin/nano168-i2cdetect.rs
+++ b/examples/nano168/src/bin/nano168-i2cdetect.rs
@@ -18,9 +18,11 @@ fn main() -> ! {
     );
 
     ufmt::uwriteln!(&mut serial, "Write direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write)
+        .unwrap_infallible();
     ufmt::uwriteln!(&mut serial, "\r\nRead direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read)
+        .unwrap_infallible();
 
     loop {}
 }
diff --git a/examples/nano168/src/bin/nano168-millis.rs b/examples/nano168/src/bin/nano168-millis.rs
index a7b390d7c9..e957e62614 100644
--- a/examples/nano168/src/bin/nano168-millis.rs
+++ b/examples/nano168/src/bin/nano168-millis.rs
@@ -89,4 +89,3 @@ fn main() -> ! {
         ufmt::uwriteln!(&mut serial, "Got {} after {} ms!\r", b, time).unwrap_infallible();
     }
 }
-
diff --git a/examples/sparkfun-promicro/src/bin/promicro-i2cdetect.rs b/examples/sparkfun-promicro/src/bin/promicro-i2cdetect.rs
index 8a3496b472..e6af7f4f4b 100644
--- a/examples/sparkfun-promicro/src/bin/promicro-i2cdetect.rs
+++ b/examples/sparkfun-promicro/src/bin/promicro-i2cdetect.rs
@@ -18,9 +18,11 @@ fn main() -> ! {
     );
 
     ufmt::uwriteln!(&mut serial, "Write direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Write)
+        .unwrap_infallible();
     ufmt::uwriteln!(&mut serial, "\r\nRead direction test:\r").unwrap_infallible();
-    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read).unwrap_infallible();
+    i2c.i2cdetect(&mut serial, arduino_hal::i2c::Direction::Read)
+        .unwrap_infallible();
 
     loop {}
 }

From 77d7cc9a529c89894d04a043cfc2f4beaa3725d0 Mon Sep 17 00:00:00 2001
From: Rhovian <atomicjab@proton.me>
Date: Sun, 5 May 2024 23:22:40 +0200
Subject: [PATCH 2/3] attiny-hal: Apply formatting

---
 mcu/attiny-hal/src/lib.rs | 16 ++++++++--------
 mcu/attiny-hal/src/spi.rs |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/mcu/attiny-hal/src/lib.rs b/mcu/attiny-hal/src/lib.rs
index ebf3d0750d..a8bf1541e0 100644
--- a/mcu/attiny-hal/src/lib.rs
+++ b/mcu/attiny-hal/src/lib.rs
@@ -32,6 +32,14 @@ compile_error!(
     "
 );
 
+/// Reexport of `attiny167` from `avr-device`
+///
+#[cfg(feature = "attiny167")]
+pub use avr_device::attiny167 as pac;
+/// Reexport of `attiny2313` from `avr-device`
+///
+#[cfg(feature = "attiny2313")]
+pub use avr_device::attiny2313 as pac;
 /// Reexport of `attiny84` from `avr-device`
 ///
 #[cfg(feature = "attiny84")]
@@ -44,14 +52,6 @@ pub use avr_device::attiny85 as pac;
 ///
 #[cfg(feature = "attiny88")]
 pub use avr_device::attiny88 as pac;
-/// Reexport of `attiny167` from `avr-device`
-///
-#[cfg(feature = "attiny167")]
-pub use avr_device::attiny167 as pac;
-/// Reexport of `attiny2313` from `avr-device`
-///
-#[cfg(feature = "attiny2313")]
-pub use avr_device::attiny2313 as pac;
 
 /// See [`avr_device::entry`](https://docs.rs/avr-device/latest/avr_device/attr.entry.html).
 #[cfg(feature = "rt")]
diff --git a/mcu/attiny-hal/src/spi.rs b/mcu/attiny-hal/src/spi.rs
index 0b279f5605..efd78464b9 100644
--- a/mcu/attiny-hal/src/spi.rs
+++ b/mcu/attiny-hal/src/spi.rs
@@ -29,7 +29,7 @@ pub type Spi = avr_hal_generic::spi::Spi<
     port::PA4,
     port::PA2,
     port::PA6,
-    >;
+>;
 #[cfg(feature = "attiny167")]
 avr_hal_generic::impl_spi! {
     hal: crate::Attiny,

From 64e16996e70f6ddce3045f0ce12c37fdf4123420 Mon Sep 17 00:00:00 2001
From: Rhovian <atomicjab@proton.me>
Date: Sun, 5 May 2024 23:23:04 +0200
Subject: [PATCH 3/3] examples: mega2560: Add RGB-LED example

---
 .../src/bin/mega2560-rgb-led.rs               | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 examples/arduino-mega2560/src/bin/mega2560-rgb-led.rs

diff --git a/examples/arduino-mega2560/src/bin/mega2560-rgb-led.rs b/examples/arduino-mega2560/src/bin/mega2560-rgb-led.rs
new file mode 100644
index 0000000000..6fd5e80756
--- /dev/null
+++ b/examples/arduino-mega2560/src/bin/mega2560-rgb-led.rs
@@ -0,0 +1,61 @@
+//! This example demonstrates how to fade an RGB LED connected to an Arduino board.
+//!
+//! Wiring:
+//! - Connect the common cathode of the RGB LED to GND.
+//! - Connect the red LED anode to pin D6 through a current-limiting resistor.
+//! - Connect the green LED anode to pin D5 through a current-limiting resistor.
+//! - Connect the blue LED anode to pin D3 through a current-limiting resistor.
+//!
+//! Note: The current-limiting resistor values depend on the specific RGB LED and the desired brightness.
+//! Typically, a resistor value between 220Ω and 1kΩ is suitable.
+
+#![no_std]
+#![no_main]
+
+use panic_halt as _;
+use arduino_hal::simple_pwm::IntoPwmPin;
+use arduino_hal::simple_pwm::Prescaler;
+use arduino_hal::simple_pwm::{Timer3Pwm, Timer4Pwm};
+
+#[arduino_hal::entry]
+fn main() -> ! {
+    let dp = arduino_hal::Peripherals::take().unwrap();
+    let pins = arduino_hal::pins!(dp);
+
+    let timer0 = Timer4Pwm::new(dp.TC4, Prescaler::Prescale64);
+    let timer1 = Timer3Pwm::new(dp.TC3, Prescaler::Prescale64);
+
+    let mut d6 = pins.d6.into_output().into_pwm(&timer0);
+    let mut d5 = pins.d5.into_output().into_pwm(&timer1);
+    let mut d3 = pins.d3.into_output().into_pwm(&timer1);
+
+    let max_duty_d6 = d6.get_max_duty();
+    let max_duty_d5 = d5.get_max_duty();
+    let max_duty_d3 = d3.get_max_duty();
+
+    let delay_time = 10;
+
+    d6.enable();
+    d5.enable();
+    d3.enable();
+
+    loop {
+        // Fade in/out red
+        for i in (0..=max_duty_d6).chain((0..=max_duty_d6 - 1).rev()) {
+            d6.set_duty(i);
+            arduino_hal::delay_ms(delay_time);
+        }
+
+        // Fade in/out green
+        for i in (0..=max_duty_d5).chain((0..=max_duty_d5 - 1).rev()) {
+            d5.set_duty(i);
+            arduino_hal::delay_ms(delay_time);
+        }
+
+        // Fade in/out blue
+        for i in (0..=max_duty_d3).chain((0..=max_duty_d3 - 1).rev()) {
+            d3.set_duty(i);
+            arduino_hal::delay_ms(delay_time);
+        }
+    }
+}
\ No newline at end of file