`esp-hal`
Free[](https://crates.io/crates/esp-hal)
FreeFree tier
About `esp-hal`
Bare-metal (no_std) hardware abstraction layer for Espressif devices. Currently supports ESP32, ESP32-C2/C3/C5/C6/C61, ESP32-H2, ESP32-P4, and ESP32-S2/S3. Also provides support for programming low-power RISC-V cores found on ESP32-C6, ESP32-S2, and ESP32-S3 via the esp-lp-hal package. The repository includes multiple crates at various stages of maturity, with documentation and examples available for getting started with Rust on ESP32 microcontrollers.
Key Features
no_std (bare-metal) design
Support for ESP32, ESP32-C2/C3/C5/C6/C61, ESP32-H2, ESP32-P4, ESP32-S2/S3
Includes esp-lp-hal for low-power RISC-V cores
Comprehensive suite of crates: esp-alloc, esp-backtrace, esp-println, esp-storage, esp-sync, etc.
Integrated with the Rust on ESP ecosystem and the Rust Embedded Book
Active development with example code and documentation
Pros & Cons
Pros
- Wide device support covering all major ESP32 series
- no_std and bare-metal for fine-grained control
- Part of a well-maintained Rust embedded ecosystem
- Active community on Matrix and support via Espressif
- Extensive documentation and examples
Cons
- Some advanced features may still be under development
- Stability and functionality vary across individual crates
- Requires familiarity with embedded Rust and no_std concepts
Best For
Embedded Rust development on Espressif microcontrollersIoT device firmwareLow-power applications using RISC-V coresReal-time embedded systems (no_std)Prototyping and production firmware for ESP32 family chips
FAQ
Which microcontrollers are supported by esp-hal?
esp-hal currently supports the ESP32, ESP32-C2, ESP32-C3, ESP32-C5, ESP32-C6, ESP32-C61, ESP32-H2, ESP32-P4, ESP32-S2, and ESP32-S3.