SLM-specific AT commands
The application sample uses a series of proprietary AT commands to let the nRF91 development kit operate as a Serial LTE Modem (SLM).
The AT Commands have standardized syntax rules.
Words enclosed in <angle brackets> are references to syntactical elements. Words enclosed in [square brackets] represent optional items that can be left out of the command line at the specified point. The brackets are not used when the words appear in the command line.
<CR><LF> are allowed in an AT command sent by an application.
A string type parameter input must be enclosed between quotation marks (
There are 3 types of AT commands:
<CMD>[=...]. Set commands set values or perform actions.
<CMD>?. Read commands check the current values of subparameters.
<CMD>=?. Test commands test the existence of the command and provide information about the type of its subparameters. Some test commands can also have other functionality.
AT responds to all commands with a final response.
See the following subpages for documentation of the proprietary AT commands. The modem-specific AT commands are documented in the nRF91 AT Commands Reference Guide.
- Generic AT commands
- Socket AT commands
- Socket #XSOCKET
- Secure Socket #XSSOCKET
- Select Socket #XSOCKETSELECT
- Socket options #XSOCKETOPT
- Secure Socket options #XSSOCKETOPT
- Socket binding #XBIND
- Connection #XCONNECT
- Set listen mode #XLISTEN
- Accept connection #XACCEPT
- Send data #XSEND
- Receive data #XRECV
- UDP send data #XSENDTO
- UDP receive data #XRECVFROM
- Poll sockets #XPOLL
- Resolve hostname #XGETADDRINFO
- TCP and UDP AT commands
- ICMP AT commands
- FOTA AT commands
- DFU AT commands
- SMS AT commands
- FTP AT commands
- GNSS AT commands
- MQTT client AT commands
- HTTP client AT commands
- TWI AT commands
- GPIO AT commands
- LwM2M carrier library AT commands