Don't use the Arduino framework, use ESP-IDF or Rust.

usagisushi · 2026-04-03T16:03:40.000000Z

For those using PlatformIO, the folks at pioarduino[0] are doing a great job keeping up with Arduino Core 3.x support.

    ```
    # platformio.ini
    platform = https://github.com/pioarduino/platform-espressif32.git#55.03.37
    framework = arduino
    ```

[0]: https://github.com/pioarduino/platform-espressif32

PunchyHamster · 2026-04-03T13:34:13.000000Z

how's Rust on the xtensa cores ?

0x457 · 2026-04-03T19:42:29.000000Z

Still requires using rust compiled against their llm fork. 'espup' makes it easy if you're okay with using it.

Other than that it works pretty well. This is if you run ESP-IDF, with bare-metal rust it's either best thing ever or meh. Rust community seems to use stm32 and picos more.

astolarz · 2026-04-04T05:25:08.000000Z

I've found that it does have some issues with the number 4096 though...

POC: https://github.com/astolarz/piper-cannot-select