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-up7·7 months 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.worldtoJingszo !@lemmy.world•Wine’s True Origins Are Finally Revealedlinkfedilinkarrow-up1·10 months ago. linkfedilink
minus-squareCBProjects@lemmy.worldtoJingszo !@lemmy.world•Wine’s True Origins Are Finally Revealedlinkfedilinkarrow-up1·10 months agolinkfedilink
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.