esp-idf-template
esp-wifi
esp-idf-template | esp-wifi | |
---|---|---|
2 | 7 | |
323 | 382 | |
1.2% | 5.8% | |
10.0 | 8.9 | |
about 2 years ago | 10 days ago | |
Makefile | Rust | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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esp-idf-template
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esp-idf starting a new project
How does everyone start a new project? Do you copy an example? Do you setup something from scratch? Do you use this (really really old) template (https://github.com/espressif/esp-idf-template)?
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Rust for Embedded Development (e.g. microcontrollers)
One option, if you used esp-idf in your old firmware, could be to use the rust standard library approach and replace components with Rust equivalents, one at a time. We have a quickstart template for creating projects with rust-based components here: https://github.com/espressif/esp-idf-template.
esp-wifi
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Rust on Espressif chips – 29-09-2023
Good question! As far as I can tell from the docs, it looks like I2C is still synchronous [1], but this will be my first async embedded Rust project, so I'm still unfamiliar with the general shape and functionality of things.
For comparison, things like WiFi are definitely async [2]
[1] https://docs.rs/esp32s2-hal/latest/esp32s2_hal/i2c/index.htm...
[2] https://github.com/esp-rs/esp-wifi/blob/main/examples-esp32s...
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The Embedded Rust ESP Development Ecosystem
Among these several abstractions, we can program a microcontroller device at any level we like. Additionally, we can develop code with a mix of low-level and high-level abstractions. Obviously, to make code more portable it's better to stick to higher-level abstractions. Also in addition to the above, there exists other crates supporting other functions in no-std development. These include wifi services in the esp-wifi repository, heap allocators in the esp-alloc repository, logging features in the esp-println repository, exception handlers in the esp-backtrace repository, and finally embedded storage traits in the esp-storage repository.
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ESP32-C3 Wireless Adventure: A Comprehensive Guide to IoT [pdf]
I haven't done much with it yet, but I'm excited about the bare-metal (no_std) rust support for the esp32c3 (as opposed to some other variants that require a custom toolchain as I understand it).
Lots of details at <https://mabez.dev/blog/posts/>, and some examples of wifi on bare-metal at <https://github.com/esp-rs/esp-wifi>.
I hope to eventually get it working with MQTT (there may be examples already, I haven't yet looked in-depth), at which point I think this will be my go-to for the majority of my IOT projects going forward!
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Switching from C++ to Rust
Esp-wifi is very actively being updated, looks like C3 is supposed to work[0][1], so if you tried more than a few weeks ago it probably changed.
[0]: https://github.com/esp-rs/esp-wifi#current-support
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Rust for Embedded Development (e.g. microcontrollers)
I previously used the esp32-c3 both with bare-metal and with the idf in rust, but I did not like the experience. With the idf you get poor ide support and poor documentation and with bare metal you used to get no wifi at all, but the experience is a lot better. I have seen the new rust wifi driver https://github.com/esp-rs/esp-wifi and i am very interested, but this is still a sync driver afaik.
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Embedded Rust Development
Also got an ESP32C3 to connect to my wifi network, which was really exciting: https://github.com/esp-rs/esp-wifi
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ESP32 Packet Sniffing and Manipulation
Check the project https://github.com/esp-rs/esp-wifi, it implement bindings to the official SDK.
What are some alternatives?
espup - Tool for installing and maintaining Espressif Rust ecosystem.
esp-idf-svc - Type-Safe Rust Wrappers for various ESP-IDF services (WiFi, Network, Httpd, Logging, etc.)
rust-esp32-std-demo - Rust on ESP32 STD demo app. A demo STD binary crate for the ESP32[XX] and ESP-IDF, which connects to WiFi, Ethernet, drives a small HTTP server and draws on a LED screen.
templates - Templates for bootstrapping a Rust TUI application with Ratatui
esp-pacs - Peripheral Access Crates for Espressif SoCs and modules
avr-hal-template - cargo-generate template for avr-hal projects
mo - 🦄 Monads and popular FP abstractions, powered by Go 1.18+ Generics (Option, Result, Either...)
Reticulum - The cryptography-based networking stack for building unstoppable networks with LoRa, Packet Radio, WiFi and everything in between.
esp-hal - no_std Hardware Abstraction Layers for ESP32 microcontrollers