Ross ROSS = Recommend OSS · open-source software intelligence for agents

espressif/ESP8266_RTOS_SDK

Latest ESP8266 SDK based on FreeRTOS, esp-idf style. observed · 2026-08-28

github.com/espressif/ESP8266_RTOS_SDK · homepage · C · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

64/100

  • Activity 91
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 4289
  • days_rel: n/a
  • days_push: 56
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

3563 stars · 1623 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Espressif's official FreeRTOS-based software development kit for the ESP8266 chip, written in C and following the esp-idf style API. It provides Wi-Fi drivers, peripherals, build tooling, and libraries for developing firmware on ESP8266 microcontrollers.

Use cases

  • build firmware for esp8266 wifi chip
  • program esp8266 with freertos
  • develop iot devices with esp8266
  • flash wifi microcontroller projects in c
  • port esp-idf style code to esp8266
  • control gpio and wifi on esp8266

When to choose

  • you are developing C firmware for the ESP8266 and want an RTOS-based, esp-idf-style API
  • you need official Espressif Wi-Fi and peripheral drivers for ESP8266
  • you want FreeRTOS multitasking on the ESP8266

When to avoid

  • you are targeting ESP32 or newer Espressif chips - use esp-idf instead
  • you want a beginner-friendly Arduino-style environment
  • you need actively developed features - the SDK is in maintenance pending migration to esp-idf

Facets

library · maturity maintenance

sdk embedded networking cryptography concurrency iot embedded-systems hardware embedded iot cross-platform c esp8266 freertos esp-idf wifi espressif firmware microcontroller lwip mbedtls

8 sources

Member repositories

RepositoryRoleHealth v2
espressif/ESP8266_RTOS_SDKmain64

For agents

markdown · JSON · MCP: product_card(name="espressif/ESP8266_RTOS_SDK")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem