Data Sheet

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5. TCP/IP-Related AT Commands
5. TCP/IP-Related AT Commands
5.1. Overview
Command
Description
AT+CIPSTATUS
Gets the connection status
AT+CIPDOMAIN
DNS function
AT+CIPSTART
Establishes TCP connection, UDP transmission or SSL connection
AT+CIPSSLSIZE
Sets the size of SSL buffer
AT+CIPSEND
Sends data
AT+CIPSENDEX
Sends data when length of data is <length>, or when \0 appears in the data
AT+CIPSENDBUF
Writes data into TCP-send-buffer
AT+CIPBUFRESET
Resets the segment ID count
AT+CIPBUFSTATUS
Checks the status of TCP-send-buffer
AT+CIPCHECKSEQ
Checks if a specific segment is sent or not
AT+CIPCLOSE
Closes TCP/UDP/SSL connection
AT+CIFSR
Gets the local IP address
AT+CIPMUX
Configures the multiple connections mode
AT+CIPSERVER
Deletes/Creates a TCP server
AT+CIPMODE
Configures the transmission mode
AT+SAVETRANSLINK
Saves the transparent transmission link in the flash
AT+CIPSTO
Sets timeout when ESP8266 runs as TCP server
AT+PING
Ping packets
AT+CIUPDATE
Upgrades the software through network
AT+CIPDINFO
Shows remote IP and remote port with +IPD
AT+CIPSNTPCFG
Configures the time domain and SNTP server.
AT+CIPSNTPTIME
Queries the SNTP time.
AT+CIPDNS_CUR
Sets user-defined DNS servers; configuration not saved in the flash
AT+CIPDNS_DEF
Sets user-defined DNS servers; configuration saved in the flash
Espressif
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2017.05