Adafruit IO is the new cloud platform (at the moment still in beta) by Adafruit, designed to allow simple data connections using standard APIs and web-based dashboards. This new platform exposes MQTT APIs, you can therefore apply what you learned in my previous posts to create a complete project that takes advantage of all its features. The…
In the IoT they often don’t give much importance to the security aspects of the communcation. Proof of this is that many of the latest DDOS (Distributed Denial of Service) attacks have been launched by hacked Internet-connected smart devices. In the previous posts, you learned how to configure mosquitto to receive messages published by clients and…
In the first part of this tutorial, I introduced the concept of topics. Every message sent to an MQTT broker must be published to a topic and clients connected to the broker decide which messages to receive subscribing to one or more topics. Today you’ll learn the format of the topics and different ways to…
If two devices have to talk to each other, they must adopt the same protocol. In the past, I’ve already shown different types of communication, for example between Arduino and a C# program, Arduino and a website or Arduino and an NTP server. All those communications are point-to-point ones, that is between two actors. Today I’m instead going to introduce you…