# tinyos/tinyos-main

Main development repository for TinyOS (an OS for embedded, wireless devices).

Repository: https://github.com/tinyos/tinyos-main
Canonical: https://ross.abutalabs.com/products/tinyos-main
Language: nesC
License Family: other
Archived: true
Last push: 2025-10-30T02:55:19+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 49, release rhythm 35, longevity 100
- inputs: {"age_days": 5012, "days_push": 307, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1502, forks 524 (observed 2026-08-28T04:04:54.453591+00:00)

## What it is
TinyOS is an open-source BSD-licensed operating system for low-power wireless embedded devices, written primarily in nesC. This repository is the main development tree, which is being transitioned to the tinyprod/tp-freeforall repositories as active development has moved there.

## Use cases
- build an operating system for wireless sensor network motes
- program low-power embedded devices for smart buildings
- develop sensor network applications on TinyOS
- compile TinyOS code with the Make3 build system
- contribute to TinyOS platform development

## When to choose
- you need a mature, BSD-licensed OS for low-power wireless sensor network hardware
- you are maintaining existing TinyOS deployments or nesC code
- you are researching sensor network operating systems

## When to avoid
- you want actively developed software - development has moved to tinyprod/tp-freeforall/prod
- you need an OS for general-purpose or non-wireless embedded devices
- you prefer modern C/C++ embedded toolchains over nesC

## Facets
- artifact type: application
- maturity: maintenance
- function: embedded, developer-tools
- domain: embedded-systems, iot, operating-systems
- platform: embedded, iot, cross-platform
- tags: tinyos, nesc, wireless-sensor-networks, low-power, sensor-networks, operating-systems, linux

## Member repositories
- tinyos/tinyos-main (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:54.453591+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 2026-08-30T04:32:54.940237+00:00, confidence not recorded.
  - readme: https://github.com/tinyos/tinyos-main (fetched 2026-08-28T04:04:54.453591+00:00, sha 3b7c542cbc16)
- Data as of 2026-08-30T08:39:29.467469+00:00.