The Internet of Things (IoT) is all about connecting devices together to let users, and each other, know what’s going on.
What is my temperature? Where am I? What is the gas level? How are the acoustics near me? What level of vibration am I experiencing? And on and on and on.
While the range of devices that need to communicate their status varies greatly, there can be some commonalities. These devices are often in an area where connecting to mains-supplied power is not an option, so they will probably be either battery-powered or use scavenged energy to power themselves.
Don’t misunderstand me, there are use cases for things like self-driving cars and telemedicine that require much more detailed conversations between devices and exchange much more data, but for the majority of IoT devices, they really don’t send a lot of data at any one time. They just need to ‘phone home’ occasionally to report their status or an event.