ATC=1, HARDWARE FLOW CONTROL
ATD=0000-00-000000, NEVER SET BLUETOOTH ADDRESS
ATE=1, ECHO CHARACTERS
ATH=1, DISCOVERABLE
ATK=0, ONE STOP BIT
ATL=2, BAUD RATE is 19200
ATM=0, NONE PARITY_BIT
ATN=AAE-WPF145, LOCAL NAME
ATO=0, ENABLE  AUTO CONNECTING
ATP=1234, PIN CODE
ATQ=0, SEND RESULT CODE
ATR=1, SLAVE ROLE
ATS=1, ENABLE AUTO-POWERDOWN OF RS232 DRIVER
ATX=1, ALWAYS CHECK '+++'