True, but also consider you still need to add a radio and then run it all on batteries. There are much better solutions that still cost less. Not to mention, having to rely on Raspberry Pi of any kind for commercial use is tough in large quantities (speaking from direct experience).
As a hobbyist tool, this is great and nothing wrong with it. But in the traditional IoT sense, we are usually talking large volumes of cheap devices running on batteries.
As a hobbyist tool, this is great and nothing wrong with it. But in the traditional IoT sense, we are usually talking large volumes of cheap devices running on batteries.