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58
RAK475 Instruction manual
<len>
1-1024
The maximum data length is 1024 byte
(ASCII)
For Example:
at+nvm_read=1,4\ r\n----------- Read 4 bytes of data from the unit of initial
address of 1.
Instruction for returned value
Parameter
Format
Length(byte)
Instruction
The command is successfully carried out
OK
ASCII
2
Open successfully
<data_length>
HEX
2
Length of actually returned data
<data_stream>
HEX
<data_length> Data
\r\n
ASCII
2
End character
The command is unsuccessfully carried out
ERROR
ASCII
5
ERROR
<CODE>
HEX
1
0XFE =-2
Failed to read data
\r\n
ASCII
2
End character
Remark
4.10
Command for setting the certificate
4.10.1
Set ssl security certificate
Command
at+set_cert=< cert_type>,<file_len>,<data_stream>\r\n
