RF-Star EFR32BG22, Manual

Page: 51 / 94

EFR32BG22
www.szrfstar.com V1.6 - Jun., 2022
Shenzhen RF-star Technology Co., Ltd.
Page 50 of 93
AT+TTM_HANDLE?
Function Query the current data transparent transmission handle of the device.
Example AT+TTM_HANDLE?
Return Value
AT+TTM_HANDLE=1
OK
AT+TTM_HANDLE=
Function Designate the slave role for data transmission under multi-connection.
Example AT+TTM_HANDLE=1
Return Value OK
Remark
Set the device with a handle value of 1 to transmit data.
Use AT+CNT_LIST to get the current handle value of the device to be connected.
Take effect immediately after setting, do not be saved after power off.
Only effective in master mode and master-slave mode.
•
Set the UUID of Slave Role
AT+SERVICE=?
Function Query the parameter range of this command.
Example AT+SERVICE=?
Return Value
AT+SERVICE=<0,1>,<0~FFFF>,<0~FFFF>,<0~FFFF>,<0~FFFF>,<0~FF...>
OK
Remark
Parameter 1 : 128-bit UUID function (0: 16-bit; 1: 128-bit, take effect after reboot).
Parameter 2 : Device service UUID (the 3 rd and 4 th byte).
Parameter 3 : Device receiving channel UUID (the 3 rd and 4 th byte in 128-bit mode).
Parameter 4 : Device transmitting channel UUID (the 3 rd and 4 th byte in 128-bit mode).
Parameter 5 : Device AT command channel UUID (the 3 rd and 4 th byte in 128-bit mode).
Parameter 6 : 128-bit basic UUID values (the 3 rd and 4 th bytes of the basic UUID are replaced with
the UUID of the above parameters to constitute the actual 128-bit UUID of the device).
Remark:
1. The basic UUID of 0000xxxx-0000-1000-8000-00805F9B34FB cannot be used.
2. This command is only effective in the slave role. (Slave mode, master-slave mode, and Beacon
mode)
AT+SERVICE?