Instructions

" " ! "
Espressif Systems
ESP8266
AT Instruction Set
6.
AT+CIPSENDEX – Send data
AT+CIPSENDEX – Send data
Single connection
(+CIPMUX=0)
AT+CIPSENDEX=<length>
Multiple connection
(+CIPMUX=1)
AT+CIPSENDEX=<link ID>, <length>
UDP Transmission
AT+CIPSENDEX=[<link ID>, ]<length>[, <remote IP>, <remote port>]
Response
Wrap return ">" after set command. Begins receiving serial data, when data
length or "\0" is met, starts transmission of data.
Therefore, for sending "\0", please send it as "\\0"
If connection cannot be established or gets disconnected during
transmission, returns
ERROR
If data is transmitted successfully, returns
SEND OK
Parameters
<link ID> ID of the connection (0~4), for multi-connect
<length> data length, MAX 2048 bytes
Espressif Systems  / Friday, July 15, 201660 73