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I've never worked with Rust, but I'm very familiar with ESP32+VSCode/ESP-IDF, and eager to use something more high-level but still stable enough for unattended network-connected appliances

is this a good time to learn and start writing for the ESP32 in Rust, or should I wait a little more?

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It's probably fine. I started using Go (tinygo) for microcontroller projects a few years ago and haven't looked back. If people can make Go work, I'm sure Rust is fine.

Tried. No wifi support for my board (esp-eye) no I2S for audio. Very limited. Too bad because I really enjoy working in Go compared to micropython.

Interesting. I did Wifi once but used an RP2040 with some sort of ESP32 flahshed with some firmware designed to let Android sketches use Wifi. (The actual wifi was done by another ESP32. BOM efficient? Nope. Easy? Yup. If $1 per part ever makes a difference to me, I guess I'll just use C.)

Have you tried AtomVM? [0]

[0] https://github.com/atomvm/AtomVM

This is a great time, in my opinion. Don't expect perfection, but things are really far along.

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