Да есть. Стоковая прошивка умеет. С помощью АТ-команд. AT+CIPMUX=1 - single connection
AT+CIPMODE=1 - UART-WiFi passthrough mode
15. AT+CIPMODE – Set transfer mode
UART-WiFi passthrough mode (transparent transmission) can only be enabled in TCP single
connection mode or UDP of which remote IP and port won’t change (parameter <UDP mode> is 0
when using command "AT+CIPSTART" to create a UDP transmission) .
During UART-WiFi passthrough transmission, if it is TCP connection and the TCP connection breaks,
ESP8266 will keep trying to reconnect until "+++" is input to quit from transmission. After sending the
"+++" token, please wait for at least 1 second before sending the next AT command.
If it is a normal TCP transmission and TCP connection breaks, ESP8266 will prompt " [<link ID>, ]
CLOSED" , and will not attempt to reconnect. Users can call "AT+CIPSTART" to create a connection
again if it is needed.