65 lines
1.9 KiB
Rust
65 lines
1.9 KiB
Rust
#![no_std]
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#![no_main]
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mod buttons;
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use core::panic::PanicInfo;
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use arduino_hal::{default_serial, delay_ms, pins, Peripherals};
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use buttons::{Button, BUTTON_COUNT};
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const MESSAGE_START: char = '<';
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const MESSAGE_END: char = '>';
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#[panic_handler]
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fn panic(_info: &PanicInfo) -> ! {
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// disable interrupts - firmware has panicked so no ISRs should continue running
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avr_device::interrupt::disable();
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// get the peripherals so we can access serial and the LED.
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//
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// SAFETY: Because main() already has references to the peripherals this is an unsafe
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// operation - but because no other code can run after the panic handler was called,
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// we know it is okay.
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let dp = unsafe { Peripherals::steal() };
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let pins = pins!(dp);
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let mut led = pins.d13.into_output();
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loop {
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led.toggle();
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delay_ms(500);
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}
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}
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#[arduino_hal::entry]
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fn main() -> ! {
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let dp = Peripherals::take().unwrap();
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let pins = pins!(dp);
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pins.d13.into_output().set_high();
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let mut buttons: [Button; BUTTON_COUNT] = [
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Button::new(1, pins.d5.into_pull_up_input().downgrade()),
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Button::new(2, pins.d6.into_pull_up_input().downgrade()),
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Button::new(3, pins.d7.into_pull_up_input().downgrade()),
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Button::new(4, pins.d8.into_pull_up_input().downgrade()),
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Button::new(5, pins.d9.into_pull_up_input().downgrade()),
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Button::new(6, pins.d10.into_pull_up_input().downgrade()),
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Button::new(7, pins.d11.into_pull_up_input().downgrade()),
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Button::new(8, pins.d12.into_pull_up_input().downgrade()),
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];
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let mut serial = default_serial!(dp, pins, 57600);
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loop {
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for button in buttons.iter_mut() {
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button.check_state(|index, pressed| {
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if !pressed {
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ufmt::uwriteln!(&mut serial, "{}{}{}", MESSAGE_START, index, MESSAGE_END)
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.unwrap();
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}
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})
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}
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}
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}
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