# atomvm/AtomVM

Tiny Erlang VM

Repository: https://github.com/atomvm/AtomVM
Canonical: https://ross.abutalabs.com/products/atomvm
Homepage: https://atomvm.org
Language: Erlang
License: Apache-2.0
License Family: permissive
Topics: erlang, c, embedded, esp32, elixir, stm32, hacktoberfest
Last push: 2026-07-31T18:04:15+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 8, longevity 100
- inputs: {"age_days": 3223, "days_push": 33, "days_rel": 436, "gap_med": 251, "n_releases_24m": 2}
- flags: no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2217, forks 159 (observed 2026-08-28T04:06:27.253471+00:00)

## What it is
AtomVM is a lightweight implementation of the BEAM virtual machine that runs Erlang, Elixir, and Gleam bytecode on microcontrollers and other constrained environments. It provides a subset of Erlang/OTP APIs with actor-based concurrency, plus peripheral interfaces like GPIO, I2C, SPI, UART, and WiFi support on devices such as the ESP32.

## Use cases
- run erlang on esp32 microcontrollers
- build iot applications in elixir
- run beam languages on tiny embedded devices
- write actor-based concurrent firmware for stm32
- run erlang in webassembly
- program raspberry pi pico with elixir

## When to choose
- you want functional, actor-based programming on microcontrollers like ESP32, STM32, or Pico
- you need BEAM concurrency features (processes, message passing, supervision) on constrained hardware
- you want to reuse existing Erlang/Elixir skills for IoT development

## When to avoid
- you need full Erlang/OTP compatibility or complete standard library coverage
- you are building mission-critical systems, since AtomVM is still in v0.x with changing APIs
- you target hardware AtomVM does not support

## Facets
- artifact type: library
- maturity: active
- function: interpreter, embedded, concurrency, networking
- domain: embedded-systems, iot, programming-languages, cross-platform
- platform: embedded, iot, wasm, windows, cpp, elixir
- tags: erlang-vm, beam, elixir, gleam, microcontrollers, esp32, stm32, actor-model, virtual-machine, linux, macos

## Member repositories
- atomvm/AtomVM (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:27.253471+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:19:37.757372+00:00, confidence not recorded.
  - homepage: https://atomvm.org (fetched 2026-08-29T10:26:07.295392+00:00, sha cc01e241192f)
  - site_page: https://doc.atomvm.org/latest (fetched 2026-08-29T10:26:07.304549+00:00, sha 25d66572294e)
- Data as of 2026-08-30T08:39:29.467469+00:00.