Kept going after /progrider/t/0ve0JwhGsLJ0 - bare C3 module now, 6uA asleep, I measured properly this time! - 18650, 1W panel, CN3791 charge board - wakes every 10 min, sends over ESP-NOW to a base station. Way less airtime than wifi+mqtt - on the shed roof for a couple of weeks now, voltage low point 3.5V NOT done: enclosure leaks at the cable gland, no OTA, base station is a dev board taped to a…