USRIOT USR-N520, User Manual

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
data_bits: data bits 5,6,7,8

stop_bits: stop bits 1,1.5,2 (which module supports)

parity: check bit

NONE (no check bit)

EVEN (even check)

ODD (odd check)

MASK (1 check)

SPACE (0 check)

flowctrl: hardware flow control (CTS RTS)

NFC: no hardware flow control

FC: hardware flow control

485: supports 485, after opening, RS_EN pin and RTS pin are the same

uartnum
：
0
11. AT+UART1

Function: Set/query UART0 interface parameter
12. AT+SOCKMN
(M: socket number, A~H. N: corresponding serial port number, 1~8. Omit MN numbers for single serial
port and single socket)

Function: Set/query network protocol parameter format:

Query
AT+SOCKMN<CR>
<CR><LF>+OK=<protocol,IP,port ><CR><LF>

Set
AT+SOCKMN=< protocol,IP,port ><CR>
<CR><LF>+OK<CR><LF>

Parameter:

Protocol: protocol type

TCPS: TCP server

TCPC: TCP client

UDPS: UDP server

UDPC: UDP client

TCPA: TCP auto

WEBUART: websocket, tranmission from webpage to serial port

IP: Server’s IP address when USR-N520 works as “CLIENT’

Port: Protocol port, decimal number, smaller than 65535
13. AT+DHCPEN

Function: Open/close DHCP Server;

Format:

Query
AT+DHCPEN<CR>
<CR><LF>+OK=<Type><CR><LF>