Data Sheet

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5. TCP/IP-Related AT Commands
5.2.17. AT+CIPSTO—Sets the TCP Server Timeout
5.2.18. AT+PING—Ping Packets
Notes
• This command will save the UART-Wi-Fi passthrough mode and its link in the flash. ESP8266 will
enter the UART-Wi-Fi passthrough mode on any subsequent power cycles.
• As long as the remote IP (or domain name) and port are valid, the configuration will be saved in the
user parameter area in the flash.
Example
AT+SAVETRANSLINK=1,"192.168.6.110",1002,"UDP",1005
Commands
Query Command:
AT+CIPSTO?
Function: to check the TCP server timeout.
Set Command:
AT+CIPSTO=<time>
Function: to set the TCP server timeout.
Response
+CIPSTO:<time>
OK
OK
Parameter
<time>: TCP server timeout within the range of 0 ~ 7200s.
Notes
•
ESP8266 configured as a TCP server will disconnect from the TCP client that does not
communicate with it until timeout.
•
If AT+CIPSTO=0, the connection will never time out. This configuration is not recommended.
Example
AT+CIPMUX=1
AT+CIPSERVER=1,1001
AT+CIPSTO=10
Set Command
AT+PING=<IP>
Function: Ping packets.
Response
+<time>
OK
or
ERROR󰐇//󰐇wrong󰐇parameter,󰐇or󰐇ping󰐇fail
Parameters
• <IP>: string; host IP or domain name
• <time>: the response time of ping
Notes
AT+PING="192.168.1.1"
AT+PING="www.baidu.com"
Espressif
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2017.05