# OpenAtomFoundation/TobudOS

开放原子开源基金会孵化的物联网操作系统，捐赠前为腾讯物联网终端操作系统TencentOS Tiny

Repository: https://github.com/OpenAtomFoundation/TobudOS
Canonical: https://ross.abutalabs.com/products/tobudos
Homepage: https://cloud.tencent.com/product/tos-tiny
License Family: other
Last push: 2024-02-02T03:38:53+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2567, "days_push": 943, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5941, forks 1558 (observed 2026-08-28T04:09:32.584144+00:00)

## What it is
TobudOS (formerly TencentOS Tiny) is a real-time operating system for IoT devices, incubated by the OpenAtom Foundation after being donated by Tencent. It provides a lightweight, configurable RTOS kernel with integrated IoT protocol stacks (MQTT, CoAP, TLS/DTLS, LoRaWAN, NB-IoT) for connecting MCU-based devices to cloud platforms.

## Use cases
- build firmware for low-power IoT sensor devices
- connect MCU-based devices to an IoT cloud platform over MQTT
- port an RTOS to STM32 or other mainstream MCUs
- develop LoRaWAN or NB-IoT end devices
- minimize RAM and ROM footprint on resource-constrained hardware
- add OTA updates and file systems to embedded devices
- implement tiered IoT security on a tiny kernel

## When to choose
- you need an extremely small-footprint RTOS (sub-1KB RAM) for IoT terminals
- your device must speak common IoT protocols like MQTT, CoAP, or LoRaWAN
- you target mainstream MCUs such as STM32 or NXP with quick porting tools
- you want a foundation-governed, vendor-neutral open-source IoT OS

## When to avoid
- you need a full Linux-class OS with rich userspace for gateway-class hardware
- you require a license-guaranteed project (no explicit license is listed in the repo)
- you need active upstream development on GitHub - the code has moved to AtomGit
- your project depends on long-term commercial support outside Tencent's ecosystem

## Facets
- artifact type: library
- maturity: maintenance
- function: embedded, iot, networking, security, middleware
- domain: iot, embedded-systems, operating-systems
- platform: embedded, iot, cpp, c
- tags: rtos, mcu, mqtt, coap, lorawan, nb-iot, low-power, tencentos-tiny, stm32, ota

## Member repositories
- OpenAtomFoundation/TobudOS (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:32.584144+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 2026-08-29T17:50:46.036887+00:00, confidence not recorded.
  - readme: https://github.com/OpenAtomFoundation/TobudOS (fetched 2026-08-28T04:09:32.584144+00:00, sha 7e869c806c54)
  - homepage: https://cloud.tencent.com/product/tos-tiny (fetched 2026-08-29T08:46:41.022707+00:00, sha fc48e9eff530)
  - site_page: https://cloud.tencent.com/about (fetched 2026-08-29T08:46:41.035130+00:00, sha 2ef76779b662)
  - site_page: https://buy.cloud.tencent.com/pricing (fetched 2026-08-29T08:46:41.032569+00:00, sha 794b90afe496)
- Data as of 2026-08-30T08:39:29.467469+00:00.