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#![no_std]
#![no_main]
use core::char;
use arduino_uno::{delay_ms, hal::port::{mode::Output, portb::PB5}, prelude::*};
use panic_halt as _;
const SHORT: u16 = 75;
const LONG: u16 = SHORT * 3;
const SPACE: u16 = SHORT * 7;
macro_rules! morse {
( $led:expr, $( $delay:expr ),* ) => {
{
$(
$led.set_high().void_unwrap();
delay_ms($delay);
$led.set_low().void_unwrap();
delay_ms(SHORT);
)*
delay_ms(LONG - SHORT);
}
};
}
fn blink_morse(led: &mut PB5<Output>, c: u8) {
let c = char::from_u32(c as u32);
if let Some(c) = c {
match c {
'a' => morse!(led, SHORT, LONG),
'b' => morse!(led, LONG, SHORT, SHORT, SHORT),
'c' => morse!(led, LONG, SHORT, LONG, SHORT),
'd' => morse!(led, LONG, SHORT, SHORT),
'e' => morse!(led, SHORT),
'f' => morse!(led, SHORT, SHORT, LONG, SHORT),
'g' => morse!(led, LONG, LONG, SHORT),
'h' => morse!(led, SHORT, SHORT, SHORT, SHORT),
'i' => morse!(led, SHORT, SHORT),
'j' => morse!(led, SHORT, LONG, LONG, LONG),
'k' => morse!(led, LONG, SHORT, LONG),
'l' => morse!(led, SHORT, LONG, SHORT, SHORT),
'm' => morse!(led, LONG, LONG),
'n' => morse!(led, LONG, SHORT),
'o' => morse!(led, LONG, LONG, LONG),
'p' => morse!(led, SHORT, LONG, LONG, SHORT),
'q' => morse!(led, LONG, LONG, SHORT, LONG),
'r' => morse!(led, SHORT, LONG, SHORT),
's' => morse!(led, SHORT, SHORT, SHORT),
't' => morse!(led, LONG),
'u' => morse!(led, SHORT, SHORT, LONG),
'v' => morse!(led, SHORT, SHORT, SHORT, LONG),
'w' => morse!(led, SHORT, LONG, LONG),
'x' => morse!(led, LONG, SHORT, SHORT, LONG),
'y' => morse!(led, LONG, SHORT, LONG, LONG),
'z' => morse!(led, LONG, LONG, SHORT, SHORT),
'1' => morse!(led, SHORT, LONG, LONG, LONG, LONG),
'2' => morse!(led, SHORT, SHORT, LONG, LONG, LONG),
'3' => morse!(led, SHORT, SHORT, SHORT, LONG, LONG),
'4' => morse!(led, SHORT, SHORT, SHORT, SHORT, LONG),
'5' => morse!(led, SHORT, SHORT, SHORT, SHORT, SHORT),
'6' => morse!(led, LONG, SHORT, SHORT, SHORT, SHORT),
'7' => morse!(led, LONG, LONG, SHORT, SHORT, SHORT),
'8' => morse!(led, LONG, LONG, LONG, SHORT, SHORT),
'9' => morse!(led, LONG, LONG, LONG, LONG, SHORT),
'0' => morse!(led, LONG, LONG, LONG, LONG, LONG),
' ' => delay_ms(SPACE - LONG),
_ => {},
}
}
}
#[arduino_uno::entry]
fn main() -> ! {
let dp = arduino_uno::Peripherals::take().unwrap();
let mut pins = arduino_uno::Pins::new(dp.PORTB, dp.PORTC, dp.PORTD);
let mut led = pins.d13.into_output(&mut pins.ddr);
led.set_low().void_unwrap();
let mut serial = arduino_uno::Serial::new(
dp.USART0,
pins.d0,
pins.d1.into_output(&mut pins.ddr),
57600.into_baudrate(),
);
loop {
let b = nb::block!(serial.read()).void_unwrap();
blink_morse(&mut led, b);
}
}
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