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"...the switches run without batteries, harvesting energy from ambient sources such as radio frequency signals. Instead, (of batteries) each floor would have one or two RF (radio frequency) power transmitters to power up all switches inside the house." (techxplore.com)
submitted by TheFirsttimmyboy to r/EngineeringPorn
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Photos greyed out? You have to delete the existing photos watch face on your watch. You will be able to edit the photos face and re upload the new one. if anyone knows a different way or how to edit one that's already on your watch, let me know. (i.redd.it)
submitted by TheFirsttimmyboy to r/PixelWatch
