SENA Promi-ESD02 - Manual (Page 42)

Promi-ESD User Manual – Appendix A AT Commands
A- 4
Copyright © 2006 Sena Technologies, Inc. All rights reserved.
28 ATSnn=mm
Command Description
1 ATZ 
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.
Reference AT&F, AT+BTCSD, AT+UARTCONFIG
2 AT&F

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-ESD is cleared completely.
Reference ATZ
3 AT 
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-ESD must be same as those
of host equipment. If not, SD response is none or ‘ERROR’
or abnormal sequence of strings.
Reference AT+UARTCONFIG, ATZ, AT&F
4 AT+UARTCONFIG,Baudrate,Parity,Stopbit 
Response OK