this post was submitted on 05 Mar 2026
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NFC Tags and Wireless Charging (lemmy.world)
submitted 6 days ago by batmaniam@lemmy.world 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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[–] Opisek@piefed.blahaj.zone 4 points 6 days ago (1 children)

I would personally rather plug the charger into some power meter and detect when your phone is charging that way.

[–] batmaniam@lemmy.world 1 points 6 days ago (1 children)

excellent, do you know if tasker pics up specific wireless chargeres? I love what you're saying about HA, but one of the use cases I'm interested in is turning off my VPN when I set my phone in my cars wireless charger (one of the hardest spots for me to to de-google at the moment).

[–] elmicha@feddit.org 2 points 6 days ago (1 children)

If the phone is connected to the car via Bluetooth you could detect that with Tasker. Then you check if car-Bluetooth and wireless charger.

[–] batmaniam@lemmy.world 1 points 6 days ago

oh duh, that's fantastic! Thanks!