The Constrained Application Protocol (CoAP) is a lightweight application layer protocol specifically developed to meet the stringent requirements of Internet of Things (IoT) devices. Its design ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

In the previous two articles, I described the hardware and software required to build an IoT device. These devices (the “Things” in the Internet of Things) are an essential part of an IoT system.

There’s an often-impenetrable alphabet soup of protocols, standards and technologies around the Internet of Things. Here’s our attempt to wipe away some of the fog, in the hopes of making the language ...

Linking all kinds of different sensors and devices together is the overarching goal of Internet of Things (IoT) technologies. But the Internet Protocols (IP) required ...

Update: We're in the last throes of winter break 2019, which means most Ars' home office phones can stay dormant for a few more days. As such, we've been resurfacing a few classics from the ...