When a Mongoose met a MicroPython, part II

Sergio R Caprile

Still RelevantIntermediate

In the first part of this blog, we introduced this little framework to integrate MicroPython and Cesanta's Mongoose; where Mongoose runs when called by MicroPython and is able to run Python functions as callbacks for the events you decide in your event handler. Now we add MQTT to the equation, so we can subscribe to topics and publish messages right from MicroPython.

Summary

This follow-up blog shows how to extend the MicroPython + Cesanta Mongoose integration by adding MQTT support so Python code can subscribe and publish via Mongoose-managed connections. Readers will learn the integration points, code snippets, and configuration needed to call MQTT operations from MicroPython callbacks and test message flows on embedded targets.

Key Takeaways

Implement an MQTT bridge that lets MicroPython trigger publish and subscribe operations through Mongoose
Subscribe to topics and handle incoming messages in Python callbacks registered with the Mongoose event loop
Configure MQTT connection parameters (broker, credentials, TLS) inside the Mongoose/MicroPython integration
Debug and validate end-to-end MQTT message flows on resource-constrained embedded targets

Who Should Read This

Embedded firmware and IoT developers (with some MicroPython or C integration experience) who want to add MQTT messaging to a MicroPython↔Mongoose event-driven integration.

Still RelevantIntermediate