Open source code and hardware like Arduino and Raspherry Pi are great. Though, most IoT devices I came across are closed and of very bad quality (security issu

Open source code and hardware like Arduino and Raspherry Pi are great. Though, most IoT devices I came across are closed and of very bad quality (security issues, no updates, phone home, etc), are very dumb (brain sits "in the cloud"), often consume more energy over time and actions take longer than with normal devices (it's all about physical laws, if you want to boil water with less energy it will take longer...). Ironically, most IoT devices don't make senses in average households. Most devices simply cannot use less energy, or can be used in the night. Do you want that your washing machine starts in a room above you in the middle of the night? How will the shirts look like in the next morning? Is it funny to use the loud vacuum cleaner for 2 hours, whereas your older model had more power and you had finished your work in 1 hour? Also a recent news article highlighted that several companies from Germany (and likely other countries) like Siemens, Bosch, Miele are cheating with the energy certificate tests of household devices - exactly like VW/Bosch with Volkswagen cars. If you set a modern Miele washing machine to 60 degree Celsius it splash your shirts for a few seconds with 58 degree water (the period of the EU tests) and then use colder water (below 40 degree) for the remaining wash cycle. So they cheat to achieve the tests and consumers buy such devices. So a recent "smart device" device is often a bad investment (and sometime it even cheats on you) - there are only a few exceptions. And one is better of if it is build of open source components.