// the find
gfurtadoalmeida/esp32-iot-azure
ESP32 library to access Azure IoT services, using the Azure IoT Middleware for FreeRTOS interface, in an easier and cleaner way.
A C component for ESP32 (ESP-IDF v5.4) that wraps the Azure IoT Middleware for FreeRTOS, adding cleaner init/deinit patterns, a menuconfig-driven configuration system, and helper extensions on top of the official Azure Embedded C SDK. For embedded devs who already know they're going Azure IoT and don't want to wire up DPS, MQTT, and TLS from scratch on an ESP32.
The menuconfig integration is the real value here — you swap credentials and endpoints without touching source code, which is the right approach for embedded firmware. Code size numbers are documented with build flags, so you can actually evaluate flash impact before committing. The extension layer (JSON reader/writer helpers, message extensions) covers the boilerplate that the upstream Azure middleware intentionally leaves to you. Built-in exponential backoff in the transport layer means reconnection logic isn't your problem.
11 stars and 3 forks is a small adoption signal — you're probably the first person to hit any bug that isn't on the happy path. The test suite is minimal; test/main/test_runner.c exists but there's no evidence of meaningful coverage, so correctness in edge cases (TLS cert rotation, DPS re-registration) is unverified. Only symmetric key auth is shown in examples — X.509 certificate auth, which is what production deployments should use, gets no example coverage. The library is tightly coupled to ESP-IDF v5.4 specifically, so if your project is on v5.3 or v5.5 you're on your own.