Yes indeed, energy harvesting SMD's are the thing: https://www.tdk-electronics.tdk.com/download/2427688/6fa95084f0dd78caac95dcb8f051082a/06-dl---ceracharge-pre

Yes indeed, energy harvesting SMD's are the thing: https://www.tdk-electronics.tdk.com/download/2427688/6fa95084f0dd78caac95dcb8f051082a/06-dl---ceracharge-presentation.pdf https://www.tdk-electronics.tdk.com/download/2427688/6fa9508...