Instructions
" " ! "  
 Espressif Systems
ESP8266 
AT Instruction Set
16.
AT+SAVETRANSLINK – Save transparent transmission link to flash 
AT+SAVETRANSLINK – Save transparent transmission link to flash 
Example
AT+SAVETRANSLINK=1, "192.168.6.110", 1002, "TCP"
Command
For TCP connection: 
AT+SAVETRANSLINK =<mode>, <remote IP or domain name>, <remote 
port>[, <type>][, <TCP keep alive>] 
For UDP transmission: 
AT+SAVETRANSLINK =<mode>, <remote IP>, <remote port>[, <type>][, 
<UDP local port>]
Response
OK
Parameters
<mode> 
0 : normal mode, will NOT enter UART-WiFi passthrough mode on power-up 
1 : save UART-WiFi passthrough mode 
<remote IP> remote IP or domain name 
<remote port> remote port 
[<type>] optional, TCP or UDP, default to be "TCP" 
[<TCP keep alive>] optional, TCP keep alive, default to be disabled 
0: disable TCP keep alive 
1 ~ 7200: keep-alive detect time interval, unit: second 
[<UDP local port>] optional, local port if UDP transparent transmission is to be 
started on power-up.
Notes
•
This command will save the UART-WiFi passthrough mode and its link into 
Flash user parameter area, ESP8266 will enter UART-WiFi passthrough mode 
on any subsequent power cycles. 
•
As long as the IP (or domain name), port conform to the specification, they 
will be saved to flash
Espressif Systems   /   Friday, July 15, 201668 73










