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By Mohamed Elhariry
#69863 What's the best way to save power on the ESP8266? I have a configuration where the ESP is connected to another MCU and will be used just to report data to a remote server.

I have 2 options here:
1) Let main MCU cut power to the ESP
2) Let main MCU ask ESP to go in deep sleep until main MCU wakes up the ESP

I am considering the fact in which the ESP hangs and doesn't listen to MCU commands anymore (they communicate via serial port)