First, the over-the-air power: Tesla (the man, not the company) would be proud.
Second, the wireless power transmitters obviously won’t be cheap.
Third, all new WiFi devices. Window sensors, door sensors, motion sensors…
Fourth, an infrastructure not designed for this. Again, all new devices.
Fifth, battery backup for wireless power transmitters! Else a power outage kills it all.
As the article points out - all to avoid the hassle of a $50-100 zigbee/zwave hub?
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