Overview
  Features
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  Running
  User Interfaces
  Status
  Bluetooth Connection
  Remote Device Configuration
  Toolbox
  Terminal Settings
  Bluetooth Management
  Bluetooth Configuration
  AT Commands List
  ATZ
  AT&F
  AT
  AT+BTINFO?
  AT+BTINQ?
  AT+BTLAST?
  AT+BTVER?
  AT+BTMODE,n
  +++
[Response]
 OK
[Purpose]
 Convert the terminal mode of 'DATA' to 'COMMAND'
[Description]
 In 'DATA' terminal mode on 'CONNECT' status, data from terminal is transmitted to the other side Bluetooth device, and any AT command is not accepted but this command, which is not echoed on the screen.
 When SENA BTerm encounters a character '+' from terminal, it stops the data transmission and waits for next 2 characters. If the next 2 characters aren't both '+', it restart to transmit data including the first '+' as well. If so, it converts the terminal mode to 'COMMAND'.
 If the data from terminal ends with '+++', it will convert the terminal mode to 'COMMAND'. Notice that SENA BTerm holds data transmission when it encounters '+' for intercharacter timeout(ATS23) or 100ms at no intercharacter timeout (ATS23=0), until receiving next character.
 This command can be disabled according to ATS11. '+' is an escape sequence character by default, which is changeable by AT+SETESC or ATS28=.
  AT+SETESC,char or nn
  ATO
  AT+BTCANCEL
  AT+BTSCAN
  AT+BTSCAN,n,to
  AT+BTSCAN112233445566,to
  ATD
  ATD112233445566
  ATH
  AT+BTSD?
  AT+BTNAME=devicename
  ATS
  ATSnn?
  ATSnn=mm
  ATS10
  ATS11
  ATS23
  ATS28
  ATS46
  Help
  Exiting