Pre-release

This release is a pre-release and may not be stable for production use.

pymcu-avr

AVR (ATmega/ATtiny) backend for the PyMCU compiler. Free and open source.

Bundles the pymcuc-avr AOT binary that reads .mir IR files and emits AVR assembly, then drives the AVR toolchain to produce a flashable Intel HEX file.

Pipeline

pymcuc --emit-ir        →  firmware.mir    (target-agnostic IR)
pymcuc-avr (this pkg)   →  firmware.asm    (AVR assembly)
avr-as / avra           →  firmware.hex    (Intel HEX)

Installation

pip install pymcu-avr

The AVR toolchain (avr-gcc, avr-as, avr-objcopy) is sourced (in order) from the pymcu-avr-toolchain wheel cache, common system install paths, or PATH. A system avr-gcc also works with no extra package:

# macOS
brew tap osx-cross/avr && brew install avr-gcc

# Debian/Ubuntu
apt install gcc-avr binutils-avr avr-libc

Supported targets

Families: atmega, attiny, at90, atxmega.
Examples: ATmega328P, ATmega2560, ATmega32U4, ATtiny85.

Layout

src/python/pymcu/backend/avr/     backend plugin — wraps pymcuc-avr
src/python/pymcu/toolchain/avr/   AVR toolchain driver (assemble → HEX)
src/csharp/lib/                   AvrBackendProvider + codegen
src/csharp/cli/                   pymcuc-avr runner CLI
src/csharp/debugserver/           GDB-stub debug server
src/csharp/profiler/              cycle-accurate profiler

Status

Alpha (API) / stable (codegen). 700+ integration tests green across ATmega328P, ATmega2560, ATmega32U4, ATtiny85.

Project links

Data verified by PyPI on Aug 18, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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  • Released:
Latest release

1 maintainer

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Avatar for pymcu from gravatar.com pymcu

Credits

Author: Iván Montiel Cardona

GitHub Statistics

Data verified by PyPI on Aug 18, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT

Requires

Python >=3.11

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