esp32.rs

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Tutorials and notes on embedded Rust for the ESP32: blinking an LED, ESP-NOW between two boards, and how esp32.rs compiles and flashes from a browser tab.

Just the tutorials →

• Blink an LED on an ESP32, without installing anything

  2 August 2026tutorial

  A first embedded Rust sketch, start to finish: read the code, compile it on the build farm, flash a real board over USB from a browser tab, and watch the serial log. No toolchain, no espflash, no PATH.

• ESP-NOW: two ESP32 boards that find each other with no router and no pairing

  2 August 2026tutorial

  Flash the same firmware to two boards and each one lists the other, with live signal strength in both directions. How ESP-NOW works, what the code does, and why the crate you remember is not the one to use.