# lib.rs - source
Source of the Rust file `Examples\Arduboy-Tutorials\serial\src\lib.rs`.

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44

    #![no_std]
    #![allow(non_upper_case_globals)]

    //Include the Arduboy Library
    #[allow(unused_imports)]
    use arduboy_rust::prelude::*;

    #[allow(dead_code)]
    const arduboy: Arduboy2 = Arduboy2::new();

    // Progmem data

    // dynamic ram variables

    // The setup() function runs once when you turn your Arduboy on
    #[no_mangle]
    pub unsafe extern "C" fn setup() {
        // put your setup code here, to run once:
        arduboy.begin();
        arduboy.set_frame_rate(30);
        arduboy.clear();
        serial::begin(9600)
    }

    // The loop() function repeats forever after setup() is done
    #[no_mangle]
    #[export_name = "loop"]
    pub unsafe extern "C" fn loop_() {
        // put your main code here, to run repeatedly:
        if !arduboy.next_frame() {
            return;
        }
        if serial::available() > 0 {
            let incoming_byte = serial::read_as_utf8_str();
            serial::print("I received: \0");

            serial::println(incoming_byte);
        }
        if arduboy.pressed(A) {
            serial::println("kekw\0")
        }

        arduboy.display();
    }