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Blue­tooth’s come a long way since we ‘Blue­jacked’ rude mes­sages to peo­ple on trains and pompous busi­ness­men used it to shout things into their Jaw­bone head­sets. But it’s still very much a one-to-one deal: your phone to your Fit­bit, your mouse to your lap­top, your ipad to your head­phones.

There’s power in num­bers, though, and Blue­tooth de­vices will soon be team­ing up to do far more than you ever thought pos­si­ble. It’s called Blue­tooth Mesh and it works by con­nect­ing mul­ti­ple gad­gets to­gether, like the way a Sonos sys­tem or Sky Q works but over Blue­tooth rather than Wi-fi. That means the data speeds are sig­nif­i­cantly slower – a rel­a­tively snail-like 1Mbps – but the uses of this tech are some­what dif­fer­ent.

Imag­ine ev­ery ap­pli­ance in your home is part of a Blue­tooth Mesh net­work. As soon as you walk in the front door, the light in the hall de­tects the pres­ence of

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