This is a good example why I hate both 99% of IoT available on sale AND HA as well... Anything simple demand a wall of text, convoluted reasoning, absent or bad

This is a good example why I hate both 99% of IoT available on sale AND HA as well... Anything simple demand a wall of text, convoluted reasoning, absent or badly documented stuff and so on. This is a similar example JUST to get a water leak notification from a user-friendly device (by user friendly means no crappy proprietary protocols and services imposed, local as a first class usage etc) https://kfx.fr/posts/shellyfloodandha/ https://kfx.fr/posts/shellyfloodandha/ and just to use such automation to automatically close a motorized valve witch actually just provide 4 power wires (ground, phase on "close", phase on "open" and "neutral) is another wall of YAML. Essentially 99% of commercial IoT seems to be designed just to impress illiterate people with colors and so on, not much differently than older merchants on "savage peoples" selling colored glass like gold, and without any ideas about a real practical usage and integration of useful features. Personally about most kitchen appliance I cry for maximizing p.v. self-consumption, since it's the sole technically sound way to use p.v., for instance ovens, dishwasher, washing machines, dryers can be "left ready to run" for a significant amount of time, all we need to maximize self-consumption is coordinate their power usage: ovens start to consume for a certain amount of time, than just keep hot with short time heating, washing machines tend to heat one or two time maximum for a certain (variable) amount of time, dishwasher tend to heat more times, but all can delay a bit their power loads, if they offer a cheap ModBUS or a less cheap but not so expensive MQTT card AS AN OPTION to be plugged behind the machine or even a kind of "smart plug" that actually just a local powerline device communicating to the internal electronics, coordinate their run from HA would be simple. No one seems to have though about such usage. Water heaters? Similarly, even most modern heat pump water heaters take into account just delaying consumption looking at grid energy price, no real integration with p.v., cars? Even worse: 99% of BEV support DC direct charging, actually most p.v. inverters supporting a battery support 400V batteries, the very same voltage of most cars nowadays, so why the hell not offer a simple home charge socket DC-to-DC to avoid double conversion DC-AC-DC with significant loss in the process? AFAIK only one vendor do so, but NOT integrated with any P.V. they just use "fast charging" as a bidirection bridge to offer V2H for cars do not support such usage (like MOST cars on sale).