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Homeowner baffled after washing machine uses 3.6GB of internet data a day
(www.newsweek.com)
This is a most excellent place for technology news and articles.
This particular homeowner is baffled that anyone would buy a washing machine that needs an internet connection. I'm all for smart appliances, but a smart washing machine is a solution in search of a problem.
I'm personally not. I'm for appliances with a standard interface, maybe, through which it can be connected to some smart home system.
I do not mean internet access or anything else "smart" in the appliance itself. I mean being able to use the same functions as buttons and indicators offer, remotely. I2C will do.
What you have just described could be ZigBee and/or MQTT.
And Z-wave
No need for radio even. MQTT - yes.