As we have worked through this chapter, we have built out our BigProject and learned a few things on the way.
First, we took a quick look at the history of IoT and where Qt fits into that. Then, we started transforming BigProject into an IoT device—not a small point device, but an IoT controller. As part of that transformation, we learned how to access web services from within Qt so that we could retrieve weather conditions.
We then learned how to use QSensor to access sensors in our system. In this particular case, it was the temperature sensor on the Sense HAT.
Finally, we took a look at a couple of IoT and automation protocols that are available in Qt and transformed BigProject from a simple display-controller to an MQTT client that publishes updates.
In Chapter 10, Using More Qt-Related Technologies, we will explore a few more Qt-related technologies, including...