RF-Star EFR32BG22, Manual

Page: 67 / 94

EFR32BG22
www.szrfstar.com V1.6 - Jun., 2022
Shenzhen RF-star Technology Co., Ltd.
Page 66 of 93
Parameter 2 : Device BLE function switch (0: disable. 1: enable)
Parameter 3 : Device serial port wake-up function switch (0: disable. 1: enable)
Remark: After the serial port function is disabled, set the CTS pin at a high level first and then set it
low to wake up the serial port. Also, it can be enabled by sending a command “AT+SLEEP=1 (BLE
function needs to be enabled).
If the serial port wake-up function is enabled, you can wake up the module by sending a wake-up
character through the serial port during sleep. To wake up the module, the wake-up character must
be less than or equal to 3 bytes , and at least 1 byte.
Use parameter 2 to disable the BLE function. If the device is under connection, all connections with
the device will be disconnected and the broadcast will be disabled. If the device is under
broadcasting, the broadcast will be disabled.
When the device is in the master role (in the master and master-slave mode), and the currently
connected device is enabled the automatic reconnection function, the device will not automatically
reconnect after disabling the BLE function. When the BLE function is turned on again, the device
will resume automatic reconnection.
Disable the BLE function will not prohibit the use of the AT command of the corresponding role, but
just let the module's Bluetooth enter the idle status and keep it, and any BLE-related operations are
valid.
AT+SLEEP?
Function Query the current sleep mode of the device.
Example AT+SLEEP?
Return Value
AT+SLEEP=1,1,0
OK
Remark
Parameter 1 : Enable the device serial port function.
Parameter 2 : Enable the device BLE function.
Parameter 3 : Disable the device serial port wake-up function (by default).
AT+SLEEP=
Function Set the device sleep mode.
Example AT+SLEEP=
Return Value
AT+SLEEP=0, 0, 0
OK