Arduino can wake up from power-down mode using external reset, external interrupt on INT pin, pin change interrupt, watchdog interrupt, watchdog system reset, TWI address match, or Brow-out reset.
© Copyright, image courtesy of Adafruit Industries lisensed under the terms of the Create Commons Attribution-ShareAlike 3.0 Unported. The BMP388_DEV library can be ...
WiFi stops working after a few hours when using the light sleep mode. I'm not an expert, I suspect that the WiFi API does not renew and negotiate some WiFi token in a timely manner because millis() is ...