W5500S2E-S1 serial to Ethernet module
W5500S2E-S1 user manual
21
6.3.3
Serial configuration command list
Features
Command
Type
Max length
Parameters / Description
Serial port 1 parameters
AT+COM1
R/W
10
Parameters format:
[baud],[datab],[parity],[stopb],[c]
Default: 7,1,0,1,0
Baud rate
AT+C1_BAUD
R/W
2
0: 1200; 1: 2400; 2: 4800;
3: 9600; 4: 14400; 5: 19200;
6: 38400; 7: 56000; 8: 57600;
9: 115200 (default); 10: 128000;
11: 234000; 12: 256000; 13: 468000;
14: 921600; 15: 1152000
Data bit
AT+C1_DATAB
R/W
1
0: 7 bit 1: 8 bit (default)
Stop bit
AT+C1_STOPB
R/W
1
0: 0.5 2: 1.5
1: 1 (default) 3: 2
Parity bit
AT+C1_PARITY
R/W
1
0: none (default)
1: odd 2: even
Serial flow control
AT+C1_SER_C
R/W
1
0: none (default)
1: Hardware flow control
Clear out serial buffer
AT+C1_BUF_CL
S
R/W
1
Only available on TCP modes
0: Keeps data in serial after connection has
created (default)
1: Clear data in serial after connected has created
Data packaging (length)
AT+C1_SER_LE
N
R/W
4
Value range: 0~2048 byte;
Default: 0 (Disable data packaging by size)
Nagle algorithm wait time (ms)
AT+C1_SER_T
R/W
5
Value range: 0~60000, unit: ms;
Default: 0 (Disable data packaging by period)
Inactivity time (ms)
AT+C1_IT
R/W
5
Only available on TCP modes
Value range: 0 ~ 60000, unit: ms;
Default: 0 (disable this function)
TCP keep alive time (ms)
AT+C1_TCPAT
R/W
3
Only available on TCP modes
Value range: 0~255, unit 5s;
Default: 0 (disable this function)
TCP authentication
AT+C1_LINK_P
R/W
1
Only available on TCP server mode
0: No password is required for TCP connection
(Default)
1: Required password for TCP connection
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