wearable bandage with solar cell can detect how long the user has been sunbathing
Hapt-Aids are self-powered, low-cost wearable bandage devices that harvest environmental or body energy to count activity or sun exposure and notify users via vibration.
Spoa Concept Devices Imagine a Home Where Wasted Energy Becomes Power - Yanko Design
Mushroom-shaped modules harvest household phantom electromagnetic fields, convert ambient energy to stored electricity, and report collection via a companion app.
These new solar panels generate power from indoor light
Low-cost perovskite indoor solar cells can be printed and are about six times more efficient than current commercial indoor photovoltaics, harvesting common indoor lighting.