Sleep AT example
==================================
This document briefly introduces and illustrates using AT commands to set sleep mode.

.. contents::
   :local:
   :depth: 1

Introduction
----

Currently, Combo-AT supports the following two power consumption modes:
1. Light sleep mode: currently only supports Bluetooth slave mode settings, you can choose to enter or not enter shallow sleep after power on, and keep Bluetooth broadcasting during sleep.
2. Deep sleep mode: There are two wake-up methods: scheduled wake-up and GPIO wake-up. After entering sleep, both Bluetooth and Wi-Fi stop working.

Measurement methods
^^^^^^^^^^^^^^^^^^^^

In order to avoid some unnecessary interference during the power consumption test, it is recommended to test the single module.


Set to light sleep mode in bluetooth connection state
-----------------------------------------------------
#.Initialize the role as a Bluetooth slave.

    command：

    .. code-block:: none

      AT+BLEMODE=1

    respond：

    .. code-block:: none

      OK

#.Start broadcasting. (enabled by default)

    command：

    .. code-block:: none

      AT+BLEADVEN=1

    respond：

    .. code-block:: none

      OK  

#.Update Bluetooth connection parameters. Set the Bluetooth connection interval to 10ms.

    command：

    .. code-block:: none

      AT+BLECONINTV=8,8,99,400

    respond：

    .. code-block:: none

      OK


#.Set sleep mode to light sleep mode.

    command：

    .. code-block:: none

      AT+SLEEP=0

    respond：

    .. code-block:: none

      OK

  
#.Waiting for connection.

    If the connection is established successfully, AT will prompt:

    .. code-block:: none

      +EVENT:BLE_CONNECTED //Bluetooth connection is successful
  

      OK

Set to deep sleep mode
-----------------------

#. Set the sleep mode to deep sleep mode, GPIO wakes up.

   command：

   .. code-block:: none

     AT+SLEEP=2,2,7,0

     OK

   respond：

   .. code-block:: none

     OK

   explanation：

   - The Ai-WB2 series only supports IO7 pin wake-up, that is, it wakes up automatically when the serial port receives data


#. Set the sleep mode to deep sleep mode, and wake up at a fixed time of 5 seconds.

   command：

   .. code-block:: none

     AT+SLEEP=2,0,5000

     OK

   respond：

   .. code-block:: none

     OK