Solar sensor node state of things (see ESP32 sleep thread)
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 shelf.
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Good numbers. Told you to come back with them! What do you see for wake time with ESP-NOW?
About 90ms awake total. Wifi and mqtt was like 2 seconds. Massive difference!!