MQTT with Adafruit IO

Building a full-fledged IOT project requires using technologies that permit your MicroPython board to collect and send data to services on the Internet that can store, retrieve, and visualize the data. These Internet services are often cloud-based services. Chances are you’ve used some of these technologies without knowing. We’ve already seen an early, simple form of this in Chapters 10 and 11 – using an HTML server to send data to a client over the Internet.