Promi SD205-OA User Manual – Appendix A. AT Commands
A-3
Command Description
1 ATZ
SD Response
OK
Purpose Software
Reset
Description
This is the same effect as power off and on.
This command disconnects Bluetooth device, and stops ongoing task. After rebooting,
the status is decided by the preset operation mode.
Some AT commands need ATZ to take effect.
2 AT&F
SD Response
OK
Purpose Hardware
reset
Description
This is the same effect as initialization by reset button.
All parameters are initialized to factory defaults. The storage of Promi SD205-OA is
cleared completely.
3 AT
SD Response
OK
Purpose
Check the connection status with host equipment
Description
Check if the connection to host equipment is normal. The serial parameters of Promi
SD205-OA must be same as those of host equipment. If not, SD response is none or
‘
ERROR
’
or abnormal sequence of strings.
4 AT+UARTCONFIG,Baudrate,Parity,Stopbit
SD Response
OK
Purpose
Set Serial parameters
Parameters
Baudrate=1200/2400/9600/14400/19200/38400/57600/115200/230400 (Default=9600)
Parity=N/E/O (Default=N)
Stopbit=1/2 (Default=1)
Description
The Serial parameters can be set or changed. The factory default is 9600, N, 1.
To take effect of this command, ATZ or power off and on.
Example AT+UARTCONFIG,9600,N,1
5 AT+USEDIP?
SD Response
m
Purpose
Check the Baud rate set by dip switch
Description
m=0: Set to
‘
AT cmd
’
m=1: Set to other than
‘
AT cmd
’
