espflash

Serial flasher utility for Espressif SoCs and modules based on esptool.py.

Currently supports the ESP32, ESP32-C3, ESP32-S2, ESP32-S3, and ESP8266.

cargo-espflash

cargo-espflash is a subcommand for Cargo which utilizes the espflash library. This tool integrates with your Cargo projects and handles compilation, flashing, and monitoring of target devices.

Please see the cargo-espflash README for more information.

Example

$ cargo espflash --release --example=blinky /dev/ttyUSB0

espflash

espflash is a standalone binary and library contained within the same crate. This tool does not integrate with Cargo, but supports all of the same features as cargo-espflash which are not related to compilation.

Please see the espflash README for more information.

Example

$ espflash /dev/ttyUSB0 target/xtensa-esp32-none-elf/release/examples/blinky

Installation

Either application can be installed using cargo as you normally would:

$ cargo install cargo-espflash
$ cargo install espflash

Alternatively, you can use cargo-binstall to install pre-compiled binaries on any supported system. Please check the releases to see which architectures and operating systems have pre-compiled binaries.

$ cargo binstall cargo-espflash
$ cargo binstall espflash

Notes on Building

Requires rustc >= 1.59.0 in order to build either application from source. In addition to the Rust toolchain libuv must also be present on your system; this can be installed via most popular package managers.

macOS

$ brew install libuv

Ubuntu

$ sudo apt-get install libuv-dev

Fedora

$ dnf install systemd-devel

License

Licensed under the GNU General Public License Version 2. See LICENSE for more details.