If the lack of some services allows it (maybe not given the chip, but it was enough for me) I recommend using esp-hal+esp-wifi rather than esp-idf-hal, it is a pure rust 'rewrite' and it's been a great experience compared to esp-idf(c++). Default is bare-metal but embassy resolves most of the need of an rtos.
I'll check it out! While it's unlikely that we're going to rewrite this firmware anytime soon, being able to leverage Rust for future projects would be nice. The big thing for us is, we use basically every peripheral and driver that ESP-IDF has, along with some extra third-party ones for some other peripheral chips we run via our daughterboard setup -- and currently today, a lot of that isn't supported yet.
Definitely keeping an eye on it though. The future of Rust on the ESP32 chips is promising!
I don't know what the issue is but I've tried esp-wifi on the ESP32-C3 with the examples and nothing would run. It's a bummer since I'd have liked to leverage the Bluetooth support for my project.
Thanks for mentioning it. I already tried using it a few months ago and brushed it off as still being a WIP, but it still didn't work when I tried again just a few days ago. Asking in the Matrix chat when first trying it sadly only got me a "works for me" from the developers.
What Espressif is doing with their esp-idf and porting it to Rust is promising, but overall it still needs work. Using the toolchain to develop on the ESP32 was at least slightly painful half a year ago before they introduced espup[1], having to keep a patched LLVM around etc., and supposedly support for their Xtensa architecture is coming to LLVM soon[2] so this will improve in the future.
I'd also love to see Bluetooth support in esp-idf-svc[3], but they seem to be lacking people with the required knowledge to design and implement an abstraction for it[4].
That’s about my experience too. Which is far too fiddly for us to rely on at work for production tasks. I basically keep checking back every six months or so: I’m hopeful that in a year, year and a half, I could replicate what we’ve done with our project on esp-rs entirely. Fingers crossed anyway, but right now there are quite a few showstoppers.
