SmingHub/Sming

Health v2 · maintenance only

Adoption not part of the score

1569 stars · 346 forks observed · 2026-08-28

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

Sming is an open-source asynchronous C++ framework for building embedded applications with strong networking support. It targets multiple architectures including ESP8266, ESP32, and Raspberry Pi Pico (RP2040/RP2350).

Use cases

• build wifi-connected iot devices in c++
• create embedded web servers on esp8266 or esp32
• program raspberry pi pico with an async framework
• develop firmware with ssl/tls support for microcontrollers
• write asynchronous networked applications for embedded hardware
• prototype iot firmware without arduino
• run embedded c++ apps on multiple chip architectures

When to choose

• you want a high-performance asynchronous C++ framework for ESP8266, ESP32, or RP2040/RP2350
• you need built-in networking features like HTTP, WebSockets, SSL, and UPnP in firmware
• you prefer a modular framework with extensive examples and documentation over raw SDKs
• you want to target multiple microcontroller architectures with one codebase

When to avoid

• you need a simple Arduino-style synchronous sketch workflow with maximal library compatibility
• your target hardware is not among the supported architectures (ESP8266, ESP32, RP2040/RP2350, host emulator)
• you require a commercially permissive license, since Sming is LGPL-3.0
• you are building a non-networked bare-metal application where a full framework is overkill

Facets

framework · maturity active

web-framework http-server websocket security middleware iot embedded-systems web-development networking embedded iot cpp esp8266 esp32 rp2040 rp2350 raspberry-pi-pico espressif wifi async ssl arduino microcontroller c-plus-plus upnp rboot

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markdown · JSON · MCP: product_card(name="SmingHub/Sming")