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Infrastructure

Running Bare-Metal Rust Alongside ESP-IDF on the ESP32-S3's Second Core

Developer unlocks bare-metal Rust on the ESP32-S3's second core while preserving ESP-IDF's Wi-Fi and Bluetooth stack, combining memory safety with proven wireless connectivity.

Monday, April 27, 2026 12:00 PM UTC2 MIN READSOURCE: Hacker NewsBY sys://pipeline

A developer demonstrates how to run bare-metal Rust on the ESP32-S3's second core while keeping Espressif's ESP-IDF framework on the first core, enabling Wi-Fi and Bluetooth access without sacrificing Rust's safety guarantees. By disabling FreeRTOS on Core 1 via `CONFIG_FREERTOS_UNICORE`, the solution avoids scheduler overhead and combines proven wireless stacks with modern language features.

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infrastructure
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