# SuperHouse/esp-open-rtos

Open source FreeRTOS-based ESP8266 software framework

Repository: https://github.com/SuperHouse/esp-open-rtos
Canonical: https://ross.abutalabs.com/products/esp-open-rtos
Language: C
License: BSD-3-Clause
License Family: permissive
Last push: 2021-05-05T07:51:19+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": 4110, "days_push": 1946, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1581, forks 490 (observed 2026-08-28T04:05:07.027715+00:00)

## What it is
An open source FreeRTOS-based software framework for the ESP8266 WiFi microcontroller, developed by the community as an alternative to Espressif's proprietary RTOS SDK. It provides a build system, drivers, and examples for writing C firmware for WiFi-enabled embedded projects.

## Use cases
- build custom firmware for ESP8266 in C
- run FreeRTOS on an ESP8266 microcontroller
- develop WiFi-connected IoT devices with an open source SDK
- flash and test example programs like HTTP clients on ESP8266
- avoid Espressif's proprietary SDK for commercial projects

## When to choose
- you want a fully open source FreeRTOS framework for ESP8266
- you prefer C and GNU Make-based builds over the vendor SDK
- you need a permissively licensed (BSD-3-Clause) framework for commercial firmware

## When to avoid
- you target ESP32 or newer Espressif chips
- you want an actively maintained SDK - the last release was 2021 and development has stalled
- you prefer the official ESP8266 RTOS SDK with vendor support

## Facets
- artifact type: framework
- maturity: maintenance
- function: embedded, build-tool, networking
- domain: iot, embedded-systems, developer-tools
- platform: embedded, iot, c
- tags: esp8266, freertos, rtos, wifi, microcontroller, firmware, espressif, linux, macos

## Member repositories
- SuperHouse/esp-open-rtos (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:07.027715+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 2026-08-30T03:56:21.508060+00:00, confidence not recorded.
  - readme: https://github.com/SuperHouse/esp-open-rtos (fetched 2026-08-28T04:05:07.027715+00:00, sha 31539459b5f0)
- Data as of 2026-08-30T08:39:29.467469+00:00.