Reply to post: Paint on the floor and you have you're own permanent twister installation.

Turn that bachelor pad into a touch pad: Now you can paint buttons, sensors on your walls

John Smith 19 Gold badge
Unhappy

Paint on the floor and you have you're own permanent twister installation.

Yeay for that .

And since you have a micro controller board already generating a low power near field signal doesn't seem that tough.

Or is it that a "passive" system needs no FCC license

No doubt the chemistry is pretty clever and maybe the algorithms but why exactly?

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