A fully functional MQTT client library for ESP8266 microcontrollers, supporting SSL, multiple connections, and all QoS levels.
esp_mqtt is an open-source MQTT client library built specifically for the ESP8266 microcontroller. It enables IoT devices to connect to MQTT brokers for publishing and subscribing to messages, supporting features like SSL encryption, multiple simultaneous connections, and all MQTT QoS levels. It solves the problem of implementing reliable, standards-compliant MQTT communication on resource-constrained ESP8266 hardware.
IoT developers and hobbyists building projects with ESP8266 microcontrollers who need to integrate MQTT-based communication for device connectivity and data exchange.
Developers choose esp_mqtt because it offers a complete, fully functional MQTT client implementation tailored for the ESP8266, with support for critical features like SSL and multiple connections that are essential for production IoT applications, all while being easy to integrate and use.
MQTT client library for ESP8266
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Supports all MQTT features including three QoS levels, authentication, will messages, and keep-alive pings, making it a fully functional client for robust IoT applications.
Allows simultaneous connections to multiple MQTT brokers, a feature not commonly found in ESP8266 libraries, enabling complex IoT architectures.
Built-in support for secure encrypted connections, essential for production-grade IoT devices that need safe internet communication.
Easy configuration of LWT messages to handle client disconnections gracefully, improving reliability in network failures as shown in the code examples.
Requires manual configuration with specific SDK versions, esptool, and Eclipse or command-line compilation, which can be daunting for developers not familiar with the ESP8266 toolchain.
The README provides basic examples but lacks detailed tutorials, and references older tools like SDK 2.0, potentially hindering new users.
Designed exclusively for ESP8266, so it's not suitable for projects migrating to ESP32 or other platforms without significant porting effort.