SleepMode

The ESP8266 can be set to deep sleep. You need to connect GPIO-16 with the RST pin to make this work.

If you enable Sleep Mode, the ESP will send all the sensor-readings at once and then go to deep sleep. It will sleep for the amount of seconds thats set in the Sleep Delay setting.

This saves lots of power, allowing you to use the ESP8266 on batteries.

Note that its recommended to set the Message Delay to 0 in the advanced settings page.

Getting out of deep sleep

When this state is active, you can't connect to the web interface. In fact, the ESP is turned off and only a dedicated timer circuit is still powered to wake up the main ESP core.

There are three ways to get out of sleep mode:

Cold boot

Power off the ESP and reconnect power. You will have 30 seconds to connect to the Web interface and disable the Sleep Mode function. (You will get feedback in the serial interface)

Special jumper setting

If 30 seconds is too short for you, you can use this method.

Connect D0 to GND and reset your ESP. Now it will automaticly disable deep sleep. (You will get feedback in the serial interface)

This requires ESPEasy v2.0.0-dev6 or newer.

Factory reset

If all else fails, just do a factory reset. You will lose all your settings!

Connect the RX and TX pin together while you restart your ESP.