minus-squareCBProjects@lemmy.worldtoTechnology@lemmy.world•Researcher has developed, at a cost of less than one dollar, a wireless light switch that runs without batteries, can be installed anywhere on a wall and could reduce the cost of wiring a house by ...linkfedilinkEnglisharrow-up7·1 year agoI saw a similar device in a friends new build 3-4 years ago. It used the energy from you pressing the switch to transmit to the fitting. linkfedilink
minus-squareCBProjects@lemmy.worldtoLord of the memes@midwest.social•¯\_(ツ)_/¯linkfedilinkEnglisharrow-up8·1 year agoShe knows how to look under and behind things linkfedilink
I saw a similar device in a friends new build 3-4 years ago. It used the energy from you pressing the switch to transmit to the fitting.