Battery can be a problem as low power takes a lot more engineering than you’d imagine and being outdoors creates additional problems if you’re trying to use lit

Battery can be a problem as low power takes a lot more engineering than you’d imagine and being outdoors creates additional problems if you’re trying to use lithium chemistry cells when temps go below freezing. For indoor use, I made this to power ESPhome devices from a cheap apple USB adapter: https://www.printables.com/model/703859-esp32-enclosure-with-acusb-power https://www.printables.com/model/703859-esp32-enclosure-with...