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How to make home appliances smart (without buying new ones)

Plugs, sensors, and the few native modules that are not theater.

Maya ChenUpdated September 12, 20268 min read

Our pick: Energy-monitoring plug + a cheap vibration sensor

How to make home appliances smart is mostly “instrument them,” not “replace them.” A $20 sensor plus a plug gets you 80% of the notifications people pay a thousand extra dollars for.

The retrofit kit

Dumb machine → useful event
ApplianceAddYou get
Washer / dryerVibration or power monitor“Done” announcement
Lamp / fanMatter plugScenes and schedules
Space heaterEnergy plug + automation capA chance of not tripping a breaker
Coffee makerPlug on a morning sceneCoffee when the lights come up

When to buy native smart

If you need true remote start on a locked oven, or leak shutoff on a dishwasher, buy the appliance that supports it. A plug cannot see a door latch.

Questions we get

Can I make a regular washer smart?

Yes enough: a vibration or power-monitoring sensor tells Home Assistant or Apple Home when the cycle ends. You cannot add remote door unlock or detergent dosing without the factory board.

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