User guide

MULTISOCKET AT COMMA
NDS
AT Commands for EV-DO-EV3 Modems
138
Notes
 You can use #SSENDEXT if #SD or #SL opened the connection.
 All special characters are sent like a generic byte. For example, the Back Space key doesn’t behave like a BS,
that is, previous character is not deleted 0x08 is sent through the socket instead. The ESC key doesn’t work
like an escape sequence and sends a generic byte (0x1B) through the socket instead.
Example
Open the socket in command mode:
AT#SD=1,0,<port>,"IP address",0,0,1
OK
Give the command specifying total number of bytes as second parameter:
AT#SSENDEXT=1,256
> .............................. ; // Terminal echo of bytes sent is displayed
here
OK
All possible bytes(from 0x00 to 0xFF) are sent on the socket as generic bytes.