Blink in rust is concise as well:

  // Main function
  #[arduino_uno::entry]
  fn main() -> ! {
    let peripherals = arduino_uno::Peripherals::take().unwrap();

    let mut pins = arduino_uno::Pins::new(
        peripherals.PORTB,
        peripherals.PORTC,
        peripherals.PORTD,
    );

    // Pin D13 is connected to L led
    let mut led = pins.d13.into_output(&mut pins.ddr);

    loop {
        led.toggle().void_unwrap();
        arduino_uno::delay_ms(500);
    }
  }

https://github.com/vlisivka/rust-arduino-blink/blob/main/src...