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NFC Tags and Wireless Charging (lemmy.world)
submitted 8 months ago by to c/homeassistant@lemmy.world
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Maybe not the correct place but I know a lot of folks use NFC tags to trigger automation.

Does anyone have experience with a tag in-between their phone and the wireless charger? I have a few wireless charging stands I'd like to set automations to (ie: "I've set my phone on the nightstand charger, X,Y,Z lights should be set to red if they're turned on now"). I'm just not sure how close the freqs both use are (and even less sure of how much interference causes issues).

So yeah, has anyone used an NFC tag in-between their phone and wireless charger without melting either?

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[–] 3 points 8 months ago (1 child)

As an addition after re-reading your post requirement for multiple chargers, if you had a cheap smart plug on each charger, you could measure the current draw and use that as a condition for different automation actions (combined with the mobile app charging state sensor). That way you could identify which charger your phone was placed upon.

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