nesper
Rustlings
nesper | Rustlings | |
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9 | 290 | |
184 | 50,564 | |
- | 2.8% | |
2.8 | 9.4 | |
3 months ago | 4 days ago | |
C | Rust | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
nesper
- Show HN: Program ESP32s in Nim
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Microsoft DeviceScript – TypeScript for Tiny IoT Devices
I use Nim on embedded precisely for that reason: https://github.com/elcritch/nesper
I wtapped much of zephyr as well but that ones less used: https://github.com/embeddednim/nephyr
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Nim 2.0.0 RC2
Nim supports both since it compiles with pretty much any C89 C compiler. Also https://github.com/elcritch/nesper :)
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Introduction to Embedded Systems Programming (Ada)
Checkout Nim! I've used it to great effect for embedded programming. It has memory management system based on non-atomic reference counting (arc) so its fast and deterministic. It has optional cycle collection too (orc). Its easy to mixin manual memory as well.
I used F# a bit and learned a lot from it, and the same with Elixir. Nim is procedural it has an "enlightened procedural" take that feels like functional programming in some ways. Partly thats due to the very powerful type system - for example Nim lets you define custom distinct (not aliased) number types just like F#. Nim also inherits a fair bit from Pascal and so shares points with Ada like ints with custom ranges. Theres some rough points, but largely its made me enjoy programming again.
The esp32 is a good route since they're easy to setup. I wrote a wrapper for esp-idf which is used in production in at least two embedded shops: https://github.com/elcritch/nesper
You can run it on Arduinos as well. Theres a pure Nim setup called Ratel and a rp2040 wrapper too. :)
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Ask HN: Who is using C++ as the main language for new project?
You should checkout Nim! I use it extensively on embedded. Nim is fantastic to program in if you're an experienced C/C++ developer. Its safer and smarter but not not pedantic about it.
Nim compiles to C or C++ so its easy to use on any embedded platform and compiler suite. Thats still huge for embedded. Rust forces a type-trait centric programming style which makes interfacing hardware/embedded harder as you have to make type heavy HALs everywhere -- hence the lack of rtos & library support despite its relative popularity).
Its pretty trivial to re-use any C/C++ libraries which gives a big boost to the native ecosystem. I wrapped most of the esp32 idf in a few weeks: https://github.com/elcritch/nesper
The new GC (ARC) is basically a built in `shared_ptr` or `Rc`. You can also do stack-based programming too and the compiler enforces a safe memory accesses. The performance is great and can match or beat C/C++ if you do a few hours of tuning. Though its easy kill performance if you're lazy (e.g. parse json into a bunch of heaps objects), but that can have its place.
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Launching the 2021 Nim Community Survey
I would really like to see more work on improving the use of Nim for programming microcontrollers. I stumbled on to https://github.com/elcritch/nesper recently and it looks neat, but I had issues getting my code to compile. Improved support for other MCUs like the esp8266 and atmega32u4 would be really cool and useful. It would be nice to have Nim as a higher level alternative to micropython or lua in the embedded world (your only other real alternatives being C/C++ or Rust).
I also found this https://disconnected.systems/blog/nim-on-adruino
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Nim Version 1.6 Released
Well no language is perfect, but Nim can be used in almost every domain because of it's compilation targets(C, C++, JS) and it's fast compile times(who needs interpretation when compile times are that fast!):
* Shell scripting, I still assume most people will just use Bash tho: https://github.com/Vindaar/shell
* Frontend: https://github.com/karaxnim/karax or you could bind to an existing JS library.
* Backend: For something Flask-like: https://github.com/dom96/jester or something with more defaults https://github.com/planety/prologue
* Scientific computing: the wonderful SciNim https://github.com/SciNim
* Blockchain: Status has some of the biggest Nim codebases currently in production https://github.com/status-im?q=&type=&language=nim&sort=
* Gamedev: Also used in production: https://github.com/pragmagic/godot-nim and due to easy C and C++ interop, you get access to a lot of gamedev libraries!
* Embedded: this is a domain I know very little about but for example https://github.com/elcritch/nesper or https://github.com/PMunch/badger for fun Nim+embedded stuff!
Most of the disadvantages come from tooling and lack of $$$ support.
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Why doesn’t V8 fit on my microcontroller?
Not quite sure if I follow what you're saying. As in Tasmota/Berry do or do not do more than provide I2C/SPI?
> If one wants to do serious stuff they would use an appropriate RTOS and program it in C.
It's unfortunate, but still largely appears to be the case. I find C very time consuming to program, so I ported Nim to FreeRTOS [1]. It's _very_ nice being able to go from writing highly optimized ISR functions to high level JSON parsing in one language. Add in defaulting to memory safety but with no pause-the-world GC. I tried Rust but it seems more difficult to integrate into existing world RTOS'es, flashers, Swagger debuggers, etc.
Though, I've been curious what running a WASM VM would be like? One could integrate any language: C++, C, Nim, Rust, etc. Would be interesting.
> MongooseOS does more than this if we're talking ESP32, also other devices, Javascript, C, C++, commercial support, cloud based OTA upgrades and integration with AWS, Azure, Google and IBM Watson IoT cloud services.
MongooseOS does seem interesting, but very targeting a niche market with prebuilt needs? For future RTOS'es I think ZephyrOS [2] has a lot of potential given it's now supported by NXP [3], TI, and others but is independent of any given (cloud) vendors or other IoT companies. Some might not like the CMake based build system, but in my view all the RTOS build systems are terrible in their own special way.
1: https://github.com/elcritch/nesper
- uLisp
Rustlings
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100 Exercises to Learn Rust
Surprised no one has mentioned another great and similar resource called Rustlings [0] (yes very punny name). You are given some files with todo statements which you'll need to fix and make the code compile and pass all the tests. It's an interactive way to learn which is what got me through learning Rust a few years ago.
[0] https://github.com/rust-lang/rustlings
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GPUI 2 is now in production – Zed
Zed is great, have been using it to do the Rustlings exercises and learn Rust:
https://github.com/rust-lang/rustlings
If you've been looking for an excuse to learn Rust, check it out.
- I'm looking for practical Rust exercises
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Avoid nested matches
Doing the rustlings conversions/from_into task which asks
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Rustlings is the greatest thing ever
However, I stumbled across Tauri (as a replacement for Electron), and installed Rust just to get Tauri to work. A few days later, I installed Rustlings (https://github.com/rust-lang/rustlings) on a whim, and did the first exercise.
- CodeCrafters CEO adds his paid service as a next step after finishing Rustlings
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Learning Zig
Rust also has something similar which is where I believe Zig drew inspiration from as well: https://github.com/rust-lang/rustlings
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Bevy XPBD: A physics engine for the Bevy game engine
Rustlings gives a great introduction to the language:
https://github.com/rust-lang/rustlings
Disclaimer: I write JavaScript
- Learning Rust Recommendations?
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Hi I’m a total newbie to programming but wants to learn rust as a first language.
Consider solving puzzles and exercises from rustlings and / or try the Rust track at exercism which I found very valuable.
What are some alternatives?
quickjs-esp32 - QuickJS port for ESP32
rust-koans - Koans for the Rust programming language
nim-esp8266-sdk - Nim wrapper for the ESP8266 NON-OS SDK
rust-by-example - Learn Rust with examples (Live code editor included)
ecl
Exercism - Scala Exercises - Crowd-sourced code mentorship. Practice having thoughtful conversations about code.
ulisp - A version of the Lisp programming language for ATmega-based Arduino boards.
book - The Rust Programming Language
embedded-hal - A Hardware Abstraction Layer (HAL) for embedded systems
rust-learning - A bunch of links to blog posts, articles, videos, etc for learning Rust
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
rust-by-practice - Learning Rust By Practice, narrowing the gap between beginner and skilled-dev through challenging examples, exercises and projects.