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Sming - ESP8266/ESP32 IoT Framework

Free

Asynchronous embedded C++ framework for ESP8266, ESP32, and Raspberry Pi Pico

FreeFree tier
Type
Open Source
Visit Website GitHub (40 stars)

About Sming - ESP8266/ESP32 IoT Framework

Sming is an asynchronous, open-source embedded C++ framework designed for high-performance IoT and embedded applications. It supports multiple architectures including ESP8266, ESP32, and Raspberry Pi Pico (RP2040 and RP2350). The framework is modular, features a rich set of network capabilities (HTTP client/server, WiFi, OTA updates), and provides extensive sample projects (e.g., Basic Blink, GPIO, Serial, DHT22 sensor reading) to help developers get started quickly.

Key Features

Asynchronous architecture for high performance
Open source and modular design
Multi-architecture support: ESP8266, ESP32, RP2040, RP2350
Rich networking features: WiFi, HTTP client/server, OTA updates
Extensive sample projects and documentation
Compatible with popular Arduino libraries (e.g., DHTesp)
Interactive browser-based tutorial for quick onboarding

Pros & Cons

Pros
  • Asynchronous design enhances performance and responsiveness
  • Multi-architecture support increases flexibility across hardware
  • Open source and modular – easy to extend and customize
  • Well-documented with practical examples for rapid prototyping
  • Active community and regular releases (e.g., stable v6.2.0)
Cons
  • Limited to specific microcontroller architectures (no generic ARM or AVR support)
  • Requires C++ knowledge, which may have a steeper learning curve for beginners
  • Smaller ecosystem compared to more mainstream platforms like Arduino

Best For

IoT sensor data logging and monitoringWiFi-connected home automation devicesHTTP client/server applications (e.g., ThingSpeak integration)Over-the-air (OTA) firmware updates for embedded devicesEducational projects for learning embedded C++ and networking

FAQ

What is Sming?
Sming is an asynchronous embedded C++ framework that simplifies the creation of IoT and network-enabled applications, supporting architectures like ESP8266, ESP32, and Raspberry Pi Pico.
Is Sming free to use?
Yes, Sming is open source and free to use under its license.
What hardware does Sming support?
Sming supports ESP8266, ESP32, and Raspberry Pi Pico (both RP2040 and RP2350).
How can I get started with Sming?
You can try the interactive browser-based tutorial, read the documentation, or clone the repository and build sample projects like Basic_Blink.