User's Manual

HF-A21-SMT Embedded WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
48
 num: 1~32, default 32. maxima TCP connection;
When configure as TCP/Server, HF-A21-SMT support maxime 32 TCP connections. If not require
so much connection, user can resetting this parameters.
4.2.2.27. AT+TCPB
 Function: Open/Close TCPB function;
 Format:
 Query Operation
AT+TCPB<CR>
+ok=<sta><CR>< LF ><CR>< LF >
 Set Operation
AT+ TCPB=<on/off><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 sta: TCPB enable status
 on, TCPB enable
 off, TCPB disable
After HF-A21-SMT module boots up again, the setting will be effective.
4.2.2.28. AT+TCPPTB
 Function: Set/Query TCPB port number;
 Format:
 Query Operation
AT+TCPPTB<CR>
+ok=<port><CR>< LF ><CR>< LF >
 Set Operation
AT+ TCPB=<port><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 port: decimal ,<65535
After HF-A21-SMT module boots up again, the setting will be effective.
4.2.2.29. AT+TCPADDB
 Function: Set/Query TCPB server address;
 Format:
 Query Operation
AT+TCPADDB<CR>
+ok=<add><CR>< LF ><CR>< LF >
 Set Operation
AT+ TCPADDB=<add><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 add: TCPB server address, can be IP address or url.
After HF-A21-SMT module boots up again, the setting will be effective
4.2.2.30. AT+TCPTOB
 Function: Set/Query TCPB time out time;
 Format:
 Query Operation
AT+TCPTOB<CR>
+ok=<time><CR>< LF ><CR>< LF >
 Set Operation
AT+ TCPTOB=<time><CR>
+ok<CR>< LF ><CR>< LF >