Forewarned is forearmed.

Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...

This repository contains a complete MQTT v5.0 client that's optimized for code size without sacrifying performance. This is, to my knowledge, the smallest (and complete!) MQTT v5.0 client for embedded ...