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Commit c679d5d

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creativcodercreativcoder
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‎.cargo/config.toml

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[build]
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target = "avr-atmega328p.json"
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[unstable]
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build-std = ["core"]

‎.gitignore

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/target

‎Cargo.lock

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‎Cargo.toml

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[package]
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name = "rust-arduino-blink"
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version = "0.1.0"
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authors = ["creativcoder <creativcoders@gmail.com>"]
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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panic-halt = "0.2.0"
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[dependencies.arduino-uno]
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git = "https://github.com/Rahix/avr-hal"
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# Configure the build for minimal size
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[profile.dev]
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panic = "abort"
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lto = true
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opt-level = "s"
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[profile.release]
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panic = "abort"
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codegen-units = 1
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debug = true
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lto = true
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opt-level = "s"

‎LICENSE

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MIT License
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Copyright (c) 2020 creativcoder
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎README.md

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## Blink program in Rust for Arduino Uno
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![Rust-on-arduino](assets/rust-arduino.gif)
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Accompanying blog post: https://creativcoder.dev/rust-on-arduino-uno
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## Getting up and running:
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```bash
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./flash.sh target/avr-atmega328p/debug/rust-arduino-blink.elf
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```

‎assets/rust-arduino.gif

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‎avr-atmega328p.json

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{
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"llvm-target": "avr-unknown-unknown",
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"cpu": "atmega328p",
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"target-endian": "little",
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"target-pointer-width": "16",
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"target-c-int-width": "16",
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"os": "unknown",
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"target-env": "",
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"target-vendor": "unknown",
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"arch": "avr",
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"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
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"executables": true,
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"linker": "avr-gcc",
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"linker-flavor": "gcc",
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"pre-link-args": {
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"gcc": ["-Os", "-mmcu=atmega328p"]
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},
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"exe-suffix": ".elf",
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"post-link-args": {
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"gcc": ["-Wl,--gc-sections"]
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},
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"singlethread": false,
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"no-builtins": false,
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"no-default-libraries": false,
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"eh-frame-header": false
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}
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‎flash.sh

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#! /usr/bin/zsh
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set -e
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if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
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echo "usage: $0 <path-to-binary.elf>" >&2
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exit 1
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fi
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if [ "$#" -lt 1 ]; then
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echo "$0: Expecting a .elf file" >&2
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exit 1
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fi
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sudo -u $USER cargo build
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avrdude -q -C/etc/avrdude.conf -patmega328p -carduino -P/dev/ttyACM0 -D "-Uflash:w:$1:e"

‎src/main.rs

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// main.rs
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#![no_std]
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#![no_main]
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extern crate panic_halt;
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use arduino_uno::prelude::*;
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use arduino_uno::hal::port::portb::PB5;
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use arduino_uno::hal::port::mode::Output;
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fn stutter_blink(led: &mut PB5<Output>, times: usize) {
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(0..times).take(times).map(|i| i * 10).for_each(|i| {
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led.toggle().void_unwrap();
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arduino_uno::delay_ms(i as u16);
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});
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}
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#[arduino_uno::entry]
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fn main() -> ! {
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let peripherals = arduino_uno::Peripherals::take().unwrap();
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let mut pins = arduino_uno::Pins::new(
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peripherals.PORTB,
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peripherals.PORTC,
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peripherals.PORTD,
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);
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let mut led = pins.d13.into_output(&mut pins.ddr);
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loop {
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stutter_blink(&mut led, 25);
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}
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}

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