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Side effects and sequence points; why volatile matters

Introduction Most embedded programmers, and indeed anyone who has attended a Feabhas programming course, is familiar with using the volatile directive when accessing registers. But it is not always obvious

Practice makes perfect, part 3 – Idiomatic kata

Previously, we looked at some of the foundational C++ code kata – that is, elements of C++ coding that are absolutely key to master if you’re going to be programming

Running the eclipse-mosquitto MQTT Broker in a docker container

I first wrote about MQTT and IoT back in 2012, when I developed a simple C based library to publish and subscribe Quality of Service (QoS) level 0 MQTT messages.